/*!
* TableSorter 2.17.8 min - Client-side table sorting with ease!
* Copyright (c) 2007 Christian Bach
*/
!function(h){h.extend({tablesorter:new function(){function d(){var b=arguments[0],a=1<arguments.length?Array.prototype.slice.call(arguments):b;if("undefined"!==typeof console&&"undefined"!==typeof console.log)console[/error/i.test(b)?"error":/warn/i.test(b)?"warn":"log"](a);else alert(a)}function q(b,a){d(b+" ("+((new Date).getTime()-a.getTime())+"ms)")}function p(b){for(var a in b)return!1;return!0}function r(b,a,c){if(!a)return"";var f,e=b.config,l=e.textExtraction||"",d="",d="basic"===l?h(a).attr(e.textAttribute)|| a.textContent||a.innerText||h(a).text()||"":"function"===typeof l?l(a,b,c):"function"===typeof(f=g.getColumnData(b,l,c))?f(a,b,c):a.textContent||a.innerText||h(a).text()||"";return h.trim(d)}function v(b){var a,c,f=b.config,e=f.$tbodies=f.$table.children("tbody:not(."+f.cssInfoBlock+")"),l,x,k,h,m,B,u,s,t,p=0,v="",w=e.length;if(0===w)return f.debug?d("Warning: *Empty table!* Not building a parser cache"):"";f.debug&&(t=new Date,d("Detecting parsers for each column"));a=[];for(c=[];p<w;){l=e[p].rows; if(l[p])for(x=f.columns,k=0;k<x;k++){h=f.$headers.filter('[data-column="'+k+'"]:last');m=g.getColumnData(b,f.headers,k);s=g.getParserById(g.getData(h,m,"extractor"));u=g.getParserById(g.getData(h,m,"sorter"));B="false"===g.getData(h,m,"parser");f.empties[k]=(g.getData(h,m,"empty")||f.emptyTo||(f.emptyToBottom?"bottom":"top")).toLowerCase();f.strings[k]=(g.getData(h,m,"string")||f.stringTo||"max").toLowerCase();B&&(u=g.getParserById("no-parser"));s||(s=!1);if(!u)a:{h=b;m=l;B=-1;u=k;for(var A=void 0, K=g.parsers.length,G=!1,z="",A=!0;""===z&&A;)B++,m[B]?(G=m[B].cells[u],z=r(h,G,u),h.config.debug&&d("Checking if value was empty on row "+B+", column: "+u+': "'+z+'"')):A=!1;for(;0<=--K;)if((A=g.parsers[K])&&"text"!==A.id&&A.is&&A.is(z,h,G)){u=A;break a}u=g.getParserById("text")}f.debug&&(v+="column:"+k+"; extractor:"+s.id+"; parser:"+u.id+"; string:"+f.strings[k]+"; empty: "+f.empties[k]+"\n");c[k]=u;a[k]=s}p+=c.length?w:1}f.debug&&(d(v?v:"No parsers detected"),q("Completed detecting parsers",t)); f.parsers=c;f.extractors=a}function w(b){var a,c,f,e,l,x,k,n,m,p,u,s=b.config,t=s.$table.children("tbody"),v=s.extractors,w=s.parsers;s.cache={};s.totalRows=0;if(!w)return s.debug?d("Warning: *Empty table!* Not building a cache"):"";s.debug&&(n=new Date);s.showProcessing&&g.isProcessing(b,!0);for(l=0;l<t.length;l++)if(u=[],a=s.cache[l]={normalized:[]},!t.eq(l).hasClass(s.cssInfoBlock)){m=t[l]&&t[l].rows.length||0;for(f=0;f<m;++f)if(p={child:[]},x=h(t[l].rows[f]),k=[],x.hasClass(s.cssChildRow)&&0!== f)c=a.normalized.length-1,a.normalized[c][s.columns].$row=a.normalized[c][s.columns].$row.add(x),x.prev().hasClass(s.cssChildRow)||x.prev().addClass(g.css.cssHasChild),p.child[c]=h.trim(x[0].textContent||x[0].innerText||x.text()||"");else{p.$row=x;p.order=f;for(e=0;e<s.columns;++e)"undefined"===typeof w[e]?s.debug&&d("No parser found for cell:",x[0].cells[e],"does it have a header?"):(c=r(b,x[0].cells[e],e),c="undefined"===typeof v[e].id?c:v[e].format(c,b,x[0].cells[e],e),c="no-parser"===w[e].id? "":w[e].format(c,b,x[0].cells[e],e),k.push(s.ignoreCase&&"string"===typeof c?c.toLowerCase():c),"numeric"===(w[e].type||"").toLowerCase()&&(u[e]=Math.max(Math.abs(c)||0,u[e]||0)));k[s.columns]=p;a.normalized.push(k)}a.colMax=u;s.totalRows+=a.normalized.length}s.showProcessing&&g.isProcessing(b);s.debug&&q("Building cache for "+m+" rows",n)}function z(b,a){var c=b.config,f=c.widgetOptions,e=b.tBodies,l=[],d=c.cache,k,n,m,r,u,s;if(p(d))return c.appender?c.appender(b,l):b.isUpdating?c.$table.trigger("updateComplete", b):"";c.debug&&(s=new Date);for(u=0;u<e.length;u++)if(k=h(e[u]),k.length&&!k.hasClass(c.cssInfoBlock)){m=g.processTbody(b,k,!0);k=d[u].normalized;n=k.length;for(r=0;r<n;r++)l.push(k[r][c.columns].$row),c.appender&&(!c.pager||c.pager.removeRows&&f.pager_removeRows||c.pager.ajax)||m.append(k[r][c.columns].$row);g.processTbody(b,m,!1)}c.appender&&c.appender(b,l);c.debug&&q("Rebuilt table",s);a||c.appender||g.applyWidget(b);b.isUpdating&&c.$table.trigger("updateComplete",b)}function D(b){return/^d/i.test(b)|| 1===b}function E(b){var a,c,f,e,l,x,k,n=b.config;n.headerList=[];n.headerContent=[];n.debug&&(k=new Date);n.columns=g.computeColumnIndex(n.$table.children("thead, tfoot").children("tr"));e=n.cssIcon?'<i class="'+(n.cssIcon===g.css.icon?g.css.icon:n.cssIcon+" "+g.css.icon)+'"></i>':"";n.$headers=h(b).find(n.selectorHeaders).each(function(k){c=h(this);a=g.getColumnData(b,n.headers,k,!0);n.headerContent[k]=h(this).html();""!==n.headerTemplate&&(l=n.headerTemplate.replace(/\{content\}/g,h(this).html()).replace(/\{icon\}/g, e),n.onRenderTemplate&&(f=n.onRenderTemplate.apply(c,[k,l]))&&"string"===typeof f&&(l=f),h(this).html('<div class="'+g.css.headerIn+'">'+l+"</div>"));n.onRenderHeader&&n.onRenderHeader.apply(c,[k]);this.column=parseInt(h(this).attr("data-column"),10);this.order=D(g.getData(c,a,"sortInitialOrder")||n.sortInitialOrder)?[1,0,2]:[0,1,2];this.count=-1;this.lockedOrder=!1;x=g.getData(c,a,"lockedOrder")||!1;"undefined"!==typeof x&&!1!==x&&(this.order=this.lockedOrder=D(x)?[1,1,1]:[0,0,0]);c.addClass(g.css.header+ " "+n.cssHeader);n.headerList[k]=this;c.parent().addClass(g.css.headerRow+" "+n.cssHeaderRow).attr("role","row");n.tabIndex&&c.attr("tabindex",0)}).attr({scope:"col",role:"columnheader"});H(b);n.debug&&(q("Built headers:",k),d(n.$headers))}function C(b,a,c){var f=b.config;f.$table.find(f.selectorRemove).remove();v(b);w(b);I(f.$table,a,c)}function H(b){var a,c,f,e=b.config;e.$headers.each(function(l,d){c=h(d);f=g.getColumnData(b,e.headers,l,!0);a="false"===g.getData(d,f,"sorter")||"false"===g.getData(d, f,"parser");d.sortDisabled=a;c[a?"addClass":"removeClass"]("sorter-false").attr("aria-disabled",""+a);b.id&&(a?c.removeAttr("aria-controls"):c.attr("aria-controls",b.id))})}function F(b){var a,c,f=b.config,e=f.sortList,l=e.length,d=g.css.sortNone+" "+f.cssNone,k=[g.css.sortAsc+" "+f.cssAsc,g.css.sortDesc+" "+f.cssDesc],n=["ascending","descending"],m=h(b).find("tfoot tr").children().add(f.$extraHeaders).removeClass(k.join(" "));f.$headers.removeClass(k.join(" ")).addClass(d).attr("aria-sort","none"); for(a=0;a<l;a++)if(2!==e[a][1]&&(b=f.$headers.not(".sorter-false").filter('[data-column="'+e[a][0]+'"]'+(1===l?":last":"")),b.length)){for(c=0;c<b.length;c++)b[c].sortDisabled||b.eq(c).removeClass(d).addClass(k[e[a][1]]).attr("aria-sort",n[e[a][1]]);m.length&&m.filter('[data-column="'+e[a][0]+'"]').removeClass(d).addClass(k[e[a][1]])}f.$headers.not(".sorter-false").each(function(){var b=h(this),a=this.order[(this.count+1)%(f.sortReset?3:2)],a=b.text()+": "+g.language[b.hasClass(g.css.sortAsc)?"sortAsc": b.hasClass(g.css.sortDesc)?"sortDesc":"sortNone"]+g.language[0===a?"nextAsc":1===a?"nextDesc":"nextNone"];b.attr("aria-label",a)})}function O(b){var a,c,f=b.config;f.widthFixed&&0===f.$table.find("colgroup").length&&(a=h("<colgroup>"),c=h(b).width(),h(b.tBodies).not("."+f.cssInfoBlock).find("tr:first").children(":visible").each(function(){a.append(h("<col>").css("width",parseInt(h(this).width()/c*1E3,10)/10+"%"))}),f.$table.prepend(a))}function P(b,a){var c,f,e,l,g,k=b.config,d=a||k.sortList;k.sortList= [];h.each(d,function(b,a){l=parseInt(a[0],10);if(e=k.$headers.filter('[data-column="'+l+'"]:last')[0]){f=(f=(""+a[1]).match(/^(1|d|s|o|n)/))?f[0]:"";switch(f){case "1":case "d":f=1;break;case "s":f=g||0;break;case "o":c=e.order[(g||0)%(k.sortReset?3:2)];f=0===c?1:1===c?0:2;break;case "n":e.count+=1;f=e.order[e.count%(k.sortReset?3:2)];break;default:f=0}g=0===b?f:g;c=[l,parseInt(f,10)||0];k.sortList.push(c);f=h.inArray(c[1],e.order);e.count=0<=f?f:c[1]%(k.sortReset?3:2)}})}function Q(b,a){return b&& b[a]?b[a].type||"":""}function L(b,a,c){if(b.isUpdating)return setTimeout(function(){L(b,a,c)},50);var f,e,l,d,k=b.config,n=!c[k.sortMultiSortKey],m=k.$table;m.trigger("sortStart",b);a.count=c[k.sortResetKey]?2:(a.count+1)%(k.sortReset?3:2);k.sortRestart&&(e=a,k.$headers.each(function(){this===e||!n&&h(this).is("."+g.css.sortDesc+",."+g.css.sortAsc)||(this.count=-1)}));e=a.column;if(n){k.sortList=[];if(null!==k.sortForce)for(f=k.sortForce,l=0;l<f.length;l++)f[l][0]!==e&&k.sortList.push(f[l]);f=a.order[a.count]; 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/*!
 * jScroll - jQuery Plugin for Infinite Scrolling / Auto-Paging
 * http://jscroll.com/
 *
 * Copyright 2011-2013, Philip Klauzinski
 * http://klauzinski.com/
 * Dual licensed under the MIT and GPL Version 2 licenses.
 * http://jscroll.com/#license
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl-2.0.html
 *
 * @author Philip Klauzinski
 * @version 2.3.4
 * @requires jQuery v1.4.3+
 * @preserve
 */
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/*!
 * Knockout JavaScript library v3.2.0
 * (c) Steven Sanderson - http://knockoutjs.com/
 * License: MIT (http://www.opensource.org/licenses/mit-license.php)
 */

(function(){
var DEBUG=true;
(function(undefined){
    // (0, eval)('this') is a robust way of getting a reference to the global object
    // For details, see http://stackoverflow.com/questions/14119988/return-this-0-evalthis/14120023#14120023
    var window = this || (0, eval)('this'),
        document = window['document'],
        navigator = window['navigator'],
        jQueryInstance = window["jQuery"],
        JSON = window["JSON"];
(function(factory) {
    // Support three module loading scenarios
    if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
        // [1] CommonJS/Node.js
        var target = module['exports'] || exports; // module.exports is for Node.js
        factory(target, require);
    } else if (typeof define === 'function' && define['amd']) {
        // [2] AMD anonymous module
        define(['exports', 'require'], factory);
    } else {
        // [3] No module loader (plain <script> tag) - put directly in global namespace
        factory(window['ko'] = {});
    }
}(function(koExports, require){
// Internally, all KO objects are attached to koExports (even the non-exported ones whose names will be minified by the closure compiler).
// In the future, the following "ko" variable may be made distinct from "koExports" so that private objects are not externally reachable.
var ko = typeof koExports !== 'undefined' ? koExports : {};
// Google Closure Compiler helpers (used only to make the minified file smaller)
ko.exportSymbol = function(koPath, object) {
    var tokens = koPath.split(".");

    // In the future, "ko" may become distinct from "koExports" (so that non-exported objects are not reachable)
    // At that point, "target" would be set to: (typeof koExports !== "undefined" ? koExports : ko)
    var target = ko;

    for (var i = 0; i < tokens.length - 1; i++)
        target = target[tokens[i]];
    target[tokens[tokens.length - 1]] = object;
};
ko.exportProperty = function(owner, publicName, object) {
    owner[publicName] = object;
};
ko.version = "3.2.0";

ko.exportSymbol('version', ko.version);
ko.utils = (function () {
    function objectForEach(obj, action) {
        for (var prop in obj) {
            if (obj.hasOwnProperty(prop)) {
                action(prop, obj[prop]);
            }
        }
    }

    function extend(target, source) {
        if (source) {
            for(var prop in source) {
                if(source.hasOwnProperty(prop)) {
                    target[prop] = source[prop];
                }
            }
        }
        return target;
    }

    function setPrototypeOf(obj, proto) {
        obj.__proto__ = proto;
        return obj;
    }

    var canSetPrototype = ({ __proto__: [] } instanceof Array);

    // Represent the known event types in a compact way, then at runtime transform it into a hash with event name as key (for fast lookup)
    var knownEvents = {}, knownEventTypesByEventName = {};
    var keyEventTypeName = (navigator && /Firefox\/2/i.test(navigator.userAgent)) ? 'KeyboardEvent' : 'UIEvents';
    knownEvents[keyEventTypeName] = ['keyup', 'keydown', 'keypress'];
    knownEvents['MouseEvents'] = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'mouseover', 'mouseout', 'mouseenter', 'mouseleave'];
    objectForEach(knownEvents, function(eventType, knownEventsForType) {
        if (knownEventsForType.length) {
            for (var i = 0, j = knownEventsForType.length; i < j; i++)
                knownEventTypesByEventName[knownEventsForType[i]] = eventType;
        }
    });
    var eventsThatMustBeRegisteredUsingAttachEvent = { 'propertychange': true }; // Workaround for an IE9 issue - https://github.com/SteveSanderson/knockout/issues/406

    // Detect IE versions for bug workarounds (uses IE conditionals, not UA string, for robustness)
    // Note that, since IE 10 does not support conditional comments, the following logic only detects IE < 10.
    // Currently this is by design, since IE 10+ behaves correctly when treated as a standard browser.
    // If there is a future need to detect specific versions of IE10+, we will amend this.
    var ieVersion = document && (function() {
        var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');

        // Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment
        while (
            div.innerHTML = '<!--[if gt IE ' + (++version) + ']><i></i><![endif]-->',
            iElems[0]
        ) {}
        return version > 4 ? version : undefined;
    }());
    var isIe6 = ieVersion === 6,
        isIe7 = ieVersion === 7;

    function isClickOnCheckableElement(element, eventType) {
        if ((ko.utils.tagNameLower(element) !== "input") || !element.type) return false;
        if (eventType.toLowerCase() != "click") return false;
        var inputType = element.type;
        return (inputType == "checkbox") || (inputType == "radio");
    }

    return {
        fieldsIncludedWithJsonPost: ['authenticity_token', /^__RequestVerificationToken(_.*)?$/],

        arrayForEach: function (array, action) {
            for (var i = 0, j = array.length; i < j; i++)
                action(array[i], i);
        },

        arrayIndexOf: function (array, item) {
            if (typeof Array.prototype.indexOf == "function")
                return Array.prototype.indexOf.call(array, item);
            for (var i = 0, j = array.length; i < j; i++)
                if (array[i] === item)
                    return i;
            return -1;
        },

        arrayFirst: function (array, predicate, predicateOwner) {
            for (var i = 0, j = array.length; i < j; i++)
                if (predicate.call(predicateOwner, array[i], i))
                    return array[i];
            return null;
        },

        arrayRemoveItem: function (array, itemToRemove) {
            var index = ko.utils.arrayIndexOf(array, itemToRemove);
            if (index > 0) {
                array.splice(index, 1);
            }
            else if (index === 0) {
                array.shift();
            }
        },

        arrayGetDistinctValues: function (array) {
            array = array || [];
            var result = [];
            for (var i = 0, j = array.length; i < j; i++) {
                if (ko.utils.arrayIndexOf(result, array[i]) < 0)
                    result.push(array[i]);
            }
            return result;
        },

        arrayMap: function (array, mapping) {
            array = array || [];
            var result = [];
            for (var i = 0, j = array.length; i < j; i++)
                result.push(mapping(array[i], i));
            return result;
        },

        arrayFilter: function (array, predicate) {
            array = array || [];
            var result = [];
            for (var i = 0, j = array.length; i < j; i++)
                if (predicate(array[i], i))
                    result.push(array[i]);
            return result;
        },

        arrayPushAll: function (array, valuesToPush) {
            if (valuesToPush instanceof Array)
                array.push.apply(array, valuesToPush);
            else
                for (var i = 0, j = valuesToPush.length; i < j; i++)
                    array.push(valuesToPush[i]);
            return array;
        },

        addOrRemoveItem: function(array, value, included) {
            var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.peekObservable(array), value);
            if (existingEntryIndex < 0) {
                if (included)
                    array.push(value);
            } else {
                if (!included)
                    array.splice(existingEntryIndex, 1);
            }
        },

        canSetPrototype: canSetPrototype,

        extend: extend,

        setPrototypeOf: setPrototypeOf,

        setPrototypeOfOrExtend: canSetPrototype ? setPrototypeOf : extend,

        objectForEach: objectForEach,

        objectMap: function(source, mapping) {
            if (!source)
                return source;
            var target = {};
            for (var prop in source) {
                if (source.hasOwnProperty(prop)) {
                    target[prop] = mapping(source[prop], prop, source);
                }
            }
            return target;
        },

        emptyDomNode: function (domNode) {
            while (domNode.firstChild) {
                ko.removeNode(domNode.firstChild);
            }
        },

        moveCleanedNodesToContainerElement: function(nodes) {
            // Ensure it's a real array, as we're about to reparent the nodes and
            // we don't want the underlying collection to change while we're doing that.
            var nodesArray = ko.utils.makeArray(nodes);

            var container = document.createElement('div');
            for (var i = 0, j = nodesArray.length; i < j; i++) {
                container.appendChild(ko.cleanNode(nodesArray[i]));
            }
            return container;
        },

        cloneNodes: function (nodesArray, shouldCleanNodes) {
            for (var i = 0, j = nodesArray.length, newNodesArray = []; i < j; i++) {
                var clonedNode = nodesArray[i].cloneNode(true);
                newNodesArray.push(shouldCleanNodes ? ko.cleanNode(clonedNode) : clonedNode);
            }
            return newNodesArray;
        },

        setDomNodeChildren: function (domNode, childNodes) {
            ko.utils.emptyDomNode(domNode);
            if (childNodes) {
                for (var i = 0, j = childNodes.length; i < j; i++)
                    domNode.appendChild(childNodes[i]);
            }
        },

        replaceDomNodes: function (nodeToReplaceOrNodeArray, newNodesArray) {
            var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType ? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray;
            if (nodesToReplaceArray.length > 0) {
                var insertionPoint = nodesToReplaceArray[0];
                var parent = insertionPoint.parentNode;
                for (var i = 0, j = newNodesArray.length; i < j; i++)
                    parent.insertBefore(newNodesArray[i], insertionPoint);
                for (var i = 0, j = nodesToReplaceArray.length; i < j; i++) {
                    ko.removeNode(nodesToReplaceArray[i]);
                }
            }
        },

        fixUpContinuousNodeArray: function(continuousNodeArray, parentNode) {
            // Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile
            // them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that
            // new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been
            // leading comment nodes (created by rewritten string-based templates) that have since been removed during binding.
            // So, this function translates the old "map" output array into its best guess of the set of current DOM nodes.
            //
            // Rules:
            //   [A] Any leading nodes that have been removed should be ignored
            //       These most likely correspond to memoization nodes that were already removed during binding
            //       See https://github.com/SteveSanderson/knockout/pull/440
            //   [B] We want to output a continuous series of nodes. So, ignore any nodes that have already been removed,
            //       and include any nodes that have been inserted among the previous collection

            if (continuousNodeArray.length) {
                // The parent node can be a virtual element; so get the real parent node
                parentNode = (parentNode.nodeType === 8 && parentNode.parentNode) || parentNode;

                // Rule [A]
                while (continuousNodeArray.length && continuousNodeArray[0].parentNode !== parentNode)
                    continuousNodeArray.shift();

                // Rule [B]
                if (continuousNodeArray.length > 1) {
                    var current = continuousNodeArray[0], last = continuousNodeArray[continuousNodeArray.length - 1];
                    // Replace with the actual new continuous node set
                    continuousNodeArray.length = 0;
                    while (current !== last) {
                        continuousNodeArray.push(current);
                        current = current.nextSibling;
                        if (!current) // Won't happen, except if the developer has manually removed some DOM elements (then we're in an undefined scenario)
                            return;
                    }
                    continuousNodeArray.push(last);
                }
            }
            return continuousNodeArray;
        },

        setOptionNodeSelectionState: function (optionNode, isSelected) {
            // IE6 sometimes throws "unknown error" if you try to write to .selected directly, whereas Firefox struggles with setAttribute. Pick one based on browser.
            if (ieVersion < 7)
                optionNode.setAttribute("selected", isSelected);
            else
                optionNode.selected = isSelected;
        },

        stringTrim: function (string) {
            return string === null || string === undefined ? '' :
                string.trim ?
                    string.trim() :
                    string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, '');
        },

        stringStartsWith: function (string, startsWith) {
            string = string || "";
            if (startsWith.length > string.length)
                return false;
            return string.substring(0, startsWith.length) === startsWith;
        },

        domNodeIsContainedBy: function (node, containedByNode) {
            if (node === containedByNode)
                return true;
            if (node.nodeType === 11)
                return false; // Fixes issue #1162 - can't use node.contains for document fragments on IE8
            if (containedByNode.contains)
                return containedByNode.contains(node.nodeType === 3 ? node.parentNode : node);
            if (containedByNode.compareDocumentPosition)
                return (containedByNode.compareDocumentPosition(node) & 16) == 16;
            while (node && node != containedByNode) {
                node = node.parentNode;
            }
            return !!node;
        },

        domNodeIsAttachedToDocument: function (node) {
            return ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement);
        },

        anyDomNodeIsAttachedToDocument: function(nodes) {
            return !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument);
        },

        tagNameLower: function(element) {
            // For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case.
            // Possible future optimization: If we know it's an element from an XHTML document (not HTML),
            // we don't need to do the .toLowerCase() as it will always be lower case anyway.
            return element && element.tagName && element.tagName.toLowerCase();
        },

        registerEventHandler: function (element, eventType, handler) {
            var mustUseAttachEvent = ieVersion && eventsThatMustBeRegisteredUsingAttachEvent[eventType];
            if (!mustUseAttachEvent && jQueryInstance) {
                jQueryInstance(element)['bind'](eventType, handler);
            } else if (!mustUseAttachEvent && typeof element.addEventListener == "function")
                element.addEventListener(eventType, handler, false);
            else if (typeof element.attachEvent != "undefined") {
                var attachEventHandler = function (event) { handler.call(element, event); },
                    attachEventName = "on" + eventType;
                element.attachEvent(attachEventName, attachEventHandler);

                // IE does not dispose attachEvent handlers automatically (unlike with addEventListener)
                // so to avoid leaks, we have to remove them manually. See bug #856
                ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
                    element.detachEvent(attachEventName, attachEventHandler);
                });
            } else
                throw new Error("Browser doesn't support addEventListener or attachEvent");
        },

        triggerEvent: function (element, eventType) {
            if (!(element && element.nodeType))
                throw new Error("element must be a DOM node when calling triggerEvent");

            // For click events on checkboxes and radio buttons, jQuery toggles the element checked state *after* the
            // event handler runs instead of *before*. (This was fixed in 1.9 for checkboxes but not for radio buttons.)
            // IE doesn't change the checked state when you trigger the click event using "fireEvent".
            // In both cases, we'll use the click method instead.
            var useClickWorkaround = isClickOnCheckableElement(element, eventType);

            if (jQueryInstance && !useClickWorkaround) {
                jQueryInstance(element)['trigger'](eventType);
            } else if (typeof document.createEvent == "function") {
                if (typeof element.dispatchEvent == "function") {
                    var eventCategory = knownEventTypesByEventName[eventType] || "HTMLEvents";
                    var event = document.createEvent(eventCategory);
                    event.initEvent(eventType, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, element);
                    element.dispatchEvent(event);
                }
                else
                    throw new Error("The supplied element doesn't support dispatchEvent");
            } else if (useClickWorkaround && element.click) {
                element.click();
            } else if (typeof element.fireEvent != "undefined") {
                element.fireEvent("on" + eventType);
            } else {
                throw new Error("Browser doesn't support triggering events");
            }
        },

        unwrapObservable: function (value) {
            return ko.isObservable(value) ? value() : value;
        },

        peekObservable: function (value) {
            return ko.isObservable(value) ? value.peek() : value;
        },

        toggleDomNodeCssClass: function (node, classNames, shouldHaveClass) {
            if (classNames) {
                var cssClassNameRegex = /\S+/g,
                    currentClassNames = node.className.match(cssClassNameRegex) || [];
                ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {
                    ko.utils.addOrRemoveItem(currentClassNames, className, shouldHaveClass);
                });
                node.className = currentClassNames.join(" ");
            }
        },

        setTextContent: function(element, textContent) {
            var value = ko.utils.unwrapObservable(textContent);
            if ((value === null) || (value === undefined))
                value = "";

            // We need there to be exactly one child: a text node.
            // If there are no children, more than one, or if it's not a text node,
            // we'll clear everything and create a single text node.
            var innerTextNode = ko.virtualElements.firstChild(element);
            if (!innerTextNode || innerTextNode.nodeType != 3 || ko.virtualElements.nextSibling(innerTextNode)) {
                ko.virtualElements.setDomNodeChildren(element, [element.ownerDocument.createTextNode(value)]);
            } else {
                innerTextNode.data = value;
            }

            ko.utils.forceRefresh(element);
        },

        setElementName: function(element, name) {
            element.name = name;

            // Workaround IE 6/7 issue
            // - https://github.com/SteveSanderson/knockout/issues/197
            // - http://www.matts411.com/post/setting_the_name_attribute_in_ie_dom/
            if (ieVersion <= 7) {
                try {
                    element.mergeAttributes(document.createElement("<input name='" + element.name + "'/>"), false);
                }
                catch(e) {} // For IE9 with doc mode "IE9 Standards" and browser mode "IE9 Compatibility View"
            }
        },

        forceRefresh: function(node) {
            // Workaround for an IE9 rendering bug - https://github.com/SteveSanderson/knockout/issues/209
            if (ieVersion >= 9) {
                // For text nodes and comment nodes (most likely virtual elements), we will have to refresh the container
                var elem = node.nodeType == 1 ? node : node.parentNode;
                if (elem.style)
                    elem.style.zoom = elem.style.zoom;
            }
        },

        ensureSelectElementIsRenderedCorrectly: function(selectElement) {
            // Workaround for IE9 rendering bug - it doesn't reliably display all the text in dynamically-added select boxes unless you force it to re-render by updating the width.
            // (See https://github.com/SteveSanderson/knockout/issues/312, http://stackoverflow.com/questions/5908494/select-only-shows-first-char-of-selected-option)
            // Also fixes IE7 and IE8 bug that causes selects to be zero width if enclosed by 'if' or 'with'. (See issue #839)
            if (ieVersion) {
                var originalWidth = selectElement.style.width;
                selectElement.style.width = 0;
                selectElement.style.width = originalWidth;
            }
        },

        range: function (min, max) {
            min = ko.utils.unwrapObservable(min);
            max = ko.utils.unwrapObservable(max);
            var result = [];
            for (var i = min; i <= max; i++)
                result.push(i);
            return result;
        },

        makeArray: function(arrayLikeObject) {
            var result = [];
            for (var i = 0, j = arrayLikeObject.length; i < j; i++) {
                result.push(arrayLikeObject[i]);
            };
            return result;
        },

        isIe6 : isIe6,
        isIe7 : isIe7,
        ieVersion : ieVersion,

        getFormFields: function(form, fieldName) {
            var fields = ko.utils.makeArray(form.getElementsByTagName("input")).concat(ko.utils.makeArray(form.getElementsByTagName("textarea")));
            var isMatchingField = (typeof fieldName == 'string')
                ? function(field) { return field.name === fieldName }
                : function(field) { return fieldName.test(field.name) }; // Treat fieldName as regex or object containing predicate
            var matches = [];
            for (var i = fields.length - 1; i >= 0; i--) {
                if (isMatchingField(fields[i]))
                    matches.push(fields[i]);
            };
            return matches;
        },

        parseJson: function (jsonString) {
            if (typeof jsonString == "string") {
                jsonString = ko.utils.stringTrim(jsonString);
                if (jsonString) {
                    if (JSON && JSON.parse) // Use native parsing where available
                        return JSON.parse(jsonString);
                    return (new Function("return " + jsonString))(); // Fallback on less safe parsing for older browsers
                }
            }
            return null;
        },

        stringifyJson: function (data, replacer, space) {   // replacer and space are optional
            if (!JSON || !JSON.stringify)
                throw new Error("Cannot find JSON.stringify(). Some browsers (e.g., IE < 8) don't support it natively, but you can overcome this by adding a script reference to json2.js, downloadable from http://www.json.org/json2.js");
            return JSON.stringify(ko.utils.unwrapObservable(data), replacer, space);
        },

        postJson: function (urlOrForm, data, options) {
            options = options || {};
            var params = options['params'] || {};
            var includeFields = options['includeFields'] || this.fieldsIncludedWithJsonPost;
            var url = urlOrForm;

            // If we were given a form, use its 'action' URL and pick out any requested field values
            if((typeof urlOrForm == 'object') && (ko.utils.tagNameLower(urlOrForm) === "form")) {
                var originalForm = urlOrForm;
                url = originalForm.action;
                for (var i = includeFields.length - 1; i >= 0; i--) {
                    var fields = ko.utils.getFormFields(originalForm, includeFields[i]);
                    for (var j = fields.length - 1; j >= 0; j--)
                        params[fields[j].name] = fields[j].value;
                }
            }

            data = ko.utils.unwrapObservable(data);
            var form = document.createElement("form");
            form.style.display = "none";
            form.action = url;
            form.method = "post";
            for (var key in data) {
                // Since 'data' this is a model object, we include all properties including those inherited from its prototype
                var input = document.createElement("input");
                input.type = "hidden";
                input.name = key;
                input.value = ko.utils.stringifyJson(ko.utils.unwrapObservable(data[key]));
                form.appendChild(input);
            }
            objectForEach(params, function(key, value) {
                var input = document.createElement("input");
                input.type = "hidden";
                input.name = key;
                input.value = value;
                form.appendChild(input);
            });
            document.body.appendChild(form);
            options['submitter'] ? options['submitter'](form) : form.submit();
            setTimeout(function () { form.parentNode.removeChild(form); }, 0);
        }
    }
}());

ko.exportSymbol('utils', ko.utils);
ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach);
ko.exportSymbol('utils.arrayFirst', ko.utils.arrayFirst);
ko.exportSymbol('utils.arrayFilter', ko.utils.arrayFilter);
ko.exportSymbol('utils.arrayGetDistinctValues', ko.utils.arrayGetDistinctValues);
ko.exportSymbol('utils.arrayIndexOf', ko.utils.arrayIndexOf);
ko.exportSymbol('utils.arrayMap', ko.utils.arrayMap);
ko.exportSymbol('utils.arrayPushAll', ko.utils.arrayPushAll);
ko.exportSymbol('utils.arrayRemoveItem', ko.utils.arrayRemoveItem);
ko.exportSymbol('utils.extend', ko.utils.extend);
ko.exportSymbol('utils.fieldsIncludedWithJsonPost', ko.utils.fieldsIncludedWithJsonPost);
ko.exportSymbol('utils.getFormFields', ko.utils.getFormFields);
ko.exportSymbol('utils.peekObservable', ko.utils.peekObservable);
ko.exportSymbol('utils.postJson', ko.utils.postJson);
ko.exportSymbol('utils.parseJson', ko.utils.parseJson);
ko.exportSymbol('utils.registerEventHandler', ko.utils.registerEventHandler);
ko.exportSymbol('utils.stringifyJson', ko.utils.stringifyJson);
ko.exportSymbol('utils.range', ko.utils.range);
ko.exportSymbol('utils.toggleDomNodeCssClass', ko.utils.toggleDomNodeCssClass);
ko.exportSymbol('utils.triggerEvent', ko.utils.triggerEvent);
ko.exportSymbol('utils.unwrapObservable', ko.utils.unwrapObservable);
ko.exportSymbol('utils.objectForEach', ko.utils.objectForEach);
ko.exportSymbol('utils.addOrRemoveItem', ko.utils.addOrRemoveItem);
ko.exportSymbol('unwrap', ko.utils.unwrapObservable); // Convenient shorthand, because this is used so commonly

if (!Function.prototype['bind']) {
    // Function.prototype.bind is a standard part of ECMAScript 5th Edition (December 2009, http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf)
    // In case the browser doesn't implement it natively, provide a JavaScript implementation. This implementation is based on the one in prototype.js
    Function.prototype['bind'] = function (object) {
        var originalFunction = this, args = Array.prototype.slice.call(arguments), object = args.shift();
        return function () {
            return originalFunction.apply(object, args.concat(Array.prototype.slice.call(arguments)));
        };
    };
}

ko.utils.domData = new (function () {
    var uniqueId = 0;
    var dataStoreKeyExpandoPropertyName = "__ko__" + (new Date).getTime();
    var dataStore = {};

    function getAll(node, createIfNotFound) {
        var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
        var hasExistingDataStore = dataStoreKey && (dataStoreKey !== "null") && dataStore[dataStoreKey];
        if (!hasExistingDataStore) {
            if (!createIfNotFound)
                return undefined;
            dataStoreKey = node[dataStoreKeyExpandoPropertyName] = "ko" + uniqueId++;
            dataStore[dataStoreKey] = {};
        }
        return dataStore[dataStoreKey];
    }

    return {
        get: function (node, key) {
            var allDataForNode = getAll(node, false);
            return allDataForNode === undefined ? undefined : allDataForNode[key];
        },
        set: function (node, key, value) {
            if (value === undefined) {
                // Make sure we don't actually create a new domData key if we are actually deleting a value
                if (getAll(node, false) === undefined)
                    return;
            }
            var allDataForNode = getAll(node, true);
            allDataForNode[key] = value;
        },
        clear: function (node) {
            var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
            if (dataStoreKey) {
                delete dataStore[dataStoreKey];
                node[dataStoreKeyExpandoPropertyName] = null;
                return true; // Exposing "did clean" flag purely so specs can infer whether things have been cleaned up as intended
            }
            return false;
        },

        nextKey: function () {
            return (uniqueId++) + dataStoreKeyExpandoPropertyName;
        }
    };
})();

ko.exportSymbol('utils.domData', ko.utils.domData);
ko.exportSymbol('utils.domData.clear', ko.utils.domData.clear); // Exporting only so specs can clear up after themselves fully

ko.utils.domNodeDisposal = new (function () {
    var domDataKey = ko.utils.domData.nextKey();
    var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document
    var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document

    function getDisposeCallbacksCollection(node, createIfNotFound) {
        var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);
        if ((allDisposeCallbacks === undefined) && createIfNotFound) {
            allDisposeCallbacks = [];
            ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);
        }
        return allDisposeCallbacks;
    }
    function destroyCallbacksCollection(node) {
        ko.utils.domData.set(node, domDataKey, undefined);
    }

    function cleanSingleNode(node) {
        // Run all the dispose callbacks
        var callbacks = getDisposeCallbacksCollection(node, false);
        if (callbacks) {
            callbacks = callbacks.slice(0); // Clone, as the array may be modified during iteration (typically, callbacks will remove themselves)
            for (var i = 0; i < callbacks.length; i++)
                callbacks[i](node);
        }

        // Erase the DOM data
        ko.utils.domData.clear(node);

        // Perform cleanup needed by external libraries (currently only jQuery, but can be extended)
        ko.utils.domNodeDisposal["cleanExternalData"](node);

        // Clear any immediate-child comment nodes, as these wouldn't have been found by
        // node.getElementsByTagName("*") in cleanNode() (comment nodes aren't elements)
        if (cleanableNodeTypesWithDescendants[node.nodeType])
            cleanImmediateCommentTypeChildren(node);
    }

    function cleanImmediateCommentTypeChildren(nodeWithChildren) {
        var child, nextChild = nodeWithChildren.firstChild;
        while (child = nextChild) {
            nextChild = child.nextSibling;
            if (child.nodeType === 8)
                cleanSingleNode(child);
        }
    }

    return {
        addDisposeCallback : function(node, callback) {
            if (typeof callback != "function")
                throw new Error("Callback must be a function");
            getDisposeCallbacksCollection(node, true).push(callback);
        },

        removeDisposeCallback : function(node, callback) {
            var callbacksCollection = getDisposeCallbacksCollection(node, false);
            if (callbacksCollection) {
                ko.utils.arrayRemoveItem(callbacksCollection, callback);
                if (callbacksCollection.length == 0)
                    destroyCallbacksCollection(node);
            }
        },

        cleanNode : function(node) {
            // First clean this node, where applicable
            if (cleanableNodeTypes[node.nodeType]) {
                cleanSingleNode(node);

                // ... then its descendants, where applicable
                if (cleanableNodeTypesWithDescendants[node.nodeType]) {
                    // Clone the descendants list in case it changes during iteration
                    var descendants = [];
                    ko.utils.arrayPushAll(descendants, node.getElementsByTagName("*"));
                    for (var i = 0, j = descendants.length; i < j; i++)
                        cleanSingleNode(descendants[i]);
                }
            }
            return node;
        },

        removeNode : function(node) {
            ko.cleanNode(node);
            if (node.parentNode)
                node.parentNode.removeChild(node);
        },

        "cleanExternalData" : function (node) {
            // Special support for jQuery here because it's so commonly used.
            // Many jQuery plugins (including jquery.tmpl) store data using jQuery's equivalent of domData
            // so notify it to tear down any resources associated with the node & descendants here.
            if (jQueryInstance && (typeof jQueryInstance['cleanData'] == "function"))
                jQueryInstance['cleanData']([node]);
        }
    }
})();
ko.cleanNode = ko.utils.domNodeDisposal.cleanNode; // Shorthand name for convenience
ko.removeNode = ko.utils.domNodeDisposal.removeNode; // Shorthand name for convenience
ko.exportSymbol('cleanNode', ko.cleanNode);
ko.exportSymbol('removeNode', ko.removeNode);
ko.exportSymbol('utils.domNodeDisposal', ko.utils.domNodeDisposal);
ko.exportSymbol('utils.domNodeDisposal.addDisposeCallback', ko.utils.domNodeDisposal.addDisposeCallback);
ko.exportSymbol('utils.domNodeDisposal.removeDisposeCallback', ko.utils.domNodeDisposal.removeDisposeCallback);
(function () {
    var leadingCommentRegex = /^(\s*)<!--(.*?)-->/;

    function simpleHtmlParse(html) {
        // Based on jQuery's "clean" function, but only accounting for table-related elements.
        // If you have referenced jQuery, this won't be used anyway - KO will use jQuery's "clean" function directly

        // Note that there's still an issue in IE < 9 whereby it will discard comment nodes that are the first child of
        // a descendant node. For example: "<div><!-- mycomment -->abc</div>" will get parsed as "<div>abc</div>"
        // This won't affect anyone who has referenced jQuery, and there's always the workaround of inserting a dummy node
        // (possibly a text node) in front of the comment. So, KO does not attempt to workaround this IE issue automatically at present.

        // Trim whitespace, otherwise indexOf won't work as expected
        var tags = ko.utils.stringTrim(html).toLowerCase(), div = document.createElement("div");

        // Finds the first match from the left column, and returns the corresponding "wrap" data from the right column
        var wrap = tags.match(/^<(thead|tbody|tfoot)/)              && [1, "<table>", "</table>"] ||
                   !tags.indexOf("<tr")                             && [2, "<table><tbody>", "</tbody></table>"] ||
                   (!tags.indexOf("<td") || !tags.indexOf("<th"))   && [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
                   /* anything else */                                 [0, "", ""];

        // Go to html and back, then peel off extra wrappers
        // Note that we always prefix with some dummy text, because otherwise, IE<9 will strip out leading comment nodes in descendants. Total madness.
        var markup = "ignored<div>" + wrap[1] + html + wrap[2] + "</div>";
        if (typeof window['innerShiv'] == "function") {
            div.appendChild(window['innerShiv'](markup));
        } else {
            div.innerHTML = markup;
        }

        // Move to the right depth
        while (wrap[0]--)
            div = div.lastChild;

        return ko.utils.makeArray(div.lastChild.childNodes);
    }

    function jQueryHtmlParse(html) {
        // jQuery's "parseHTML" function was introduced in jQuery 1.8.0 and is a documented public API.
        if (jQueryInstance['parseHTML']) {
            return jQueryInstance['parseHTML'](html) || []; // Ensure we always return an array and never null
        } else {
            // For jQuery < 1.8.0, we fall back on the undocumented internal "clean" function.
            var elems = jQueryInstance['clean']([html]);

            // As of jQuery 1.7.1, jQuery parses the HTML by appending it to some dummy parent nodes held in an in-memory document fragment.
            // Unfortunately, it never clears the dummy parent nodes from the document fragment, so it leaks memory over time.
            // Fix this by finding the top-most dummy parent element, and detaching it from its owner fragment.
            if (elems && elems[0]) {
                // Find the top-most parent element that's a direct child of a document fragment
                var elem = elems[0];
                while (elem.parentNode && elem.parentNode.nodeType !== 11 /* i.e., DocumentFragment */)
                    elem = elem.parentNode;
                // ... then detach it
                if (elem.parentNode)
                    elem.parentNode.removeChild(elem);
            }

            return elems;
        }
    }

    ko.utils.parseHtmlFragment = function(html) {
        return jQueryInstance ? jQueryHtmlParse(html)   // As below, benefit from jQuery's optimisations where possible
                              : simpleHtmlParse(html);  // ... otherwise, this simple logic will do in most common cases.
    };

    ko.utils.setHtml = function(node, html) {
        ko.utils.emptyDomNode(node);

        // There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it
        html = ko.utils.unwrapObservable(html);

        if ((html !== null) && (html !== undefined)) {
            if (typeof html != 'string')
                html = html.toString();

            // jQuery contains a lot of sophisticated code to parse arbitrary HTML fragments,
            // for example <tr> elements which are not normally allowed to exist on their own.
            // If you've referenced jQuery we'll use that rather than duplicating its code.
            if (jQueryInstance) {
                jQueryInstance(node)['html'](html);
            } else {
                // ... otherwise, use KO's own parsing logic.
                var parsedNodes = ko.utils.parseHtmlFragment(html);
                for (var i = 0; i < parsedNodes.length; i++)
                    node.appendChild(parsedNodes[i]);
            }
        }
    };
})();

ko.exportSymbol('utils.parseHtmlFragment', ko.utils.parseHtmlFragment);
ko.exportSymbol('utils.setHtml', ko.utils.setHtml);

ko.memoization = (function () {
    var memos = {};

    function randomMax8HexChars() {
        return (((1 + Math.random()) * 0x100000000) | 0).toString(16).substring(1);
    }
    function generateRandomId() {
        return randomMax8HexChars() + randomMax8HexChars();
    }
    function findMemoNodes(rootNode, appendToArray) {
        if (!rootNode)
            return;
        if (rootNode.nodeType == 8) {
            var memoId = ko.memoization.parseMemoText(rootNode.nodeValue);
            if (memoId != null)
                appendToArray.push({ domNode: rootNode, memoId: memoId });
        } else if (rootNode.nodeType == 1) {
            for (var i = 0, childNodes = rootNode.childNodes, j = childNodes.length; i < j; i++)
                findMemoNodes(childNodes[i], appendToArray);
        }
    }

    return {
        memoize: function (callback) {
            if (typeof callback != "function")
                throw new Error("You can only pass a function to ko.memoization.memoize()");
            var memoId = generateRandomId();
            memos[memoId] = callback;
            return "<!--[ko_memo:" + memoId + "]-->";
        },

        unmemoize: function (memoId, callbackParams) {
            var callback = memos[memoId];
            if (callback === undefined)
                throw new Error("Couldn't find any memo with ID " + memoId + ". Perhaps it's already been unmemoized.");
            try {
                callback.apply(null, callbackParams || []);
                return true;
            }
            finally { delete memos[memoId]; }
        },

        unmemoizeDomNodeAndDescendants: function (domNode, extraCallbackParamsArray) {
            var memos = [];
            findMemoNodes(domNode, memos);
            for (var i = 0, j = memos.length; i < j; i++) {
                var node = memos[i].domNode;
                var combinedParams = [node];
                if (extraCallbackParamsArray)
                    ko.utils.arrayPushAll(combinedParams, extraCallbackParamsArray);
                ko.memoization.unmemoize(memos[i].memoId, combinedParams);
                node.nodeValue = ""; // Neuter this node so we don't try to unmemoize it again
                if (node.parentNode)
                    node.parentNode.removeChild(node); // If possible, erase it totally (not always possible - someone else might just hold a reference to it then call unmemoizeDomNodeAndDescendants again)
            }
        },

        parseMemoText: function (memoText) {
            var match = memoText.match(/^\[ko_memo\:(.*?)\]$/);
            return match ? match[1] : null;
        }
    };
})();

ko.exportSymbol('memoization', ko.memoization);
ko.exportSymbol('memoization.memoize', ko.memoization.memoize);
ko.exportSymbol('memoization.unmemoize', ko.memoization.unmemoize);
ko.exportSymbol('memoization.parseMemoText', ko.memoization.parseMemoText);
ko.exportSymbol('memoization.unmemoizeDomNodeAndDescendants', ko.memoization.unmemoizeDomNodeAndDescendants);
ko.extenders = {
    'throttle': function(target, timeout) {
        // Throttling means two things:

        // (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies
        //     notify updates, the target doesn't re-evaluate (and hence doesn't notify) faster than a certain rate
        target['throttleEvaluation'] = timeout;

        // (2) For writable targets (observables, or writable dependent observables), we throttle *writes*
        //     so the target cannot change value synchronously or faster than a certain rate
        var writeTimeoutInstance = null;
        return ko.dependentObservable({
            'read': target,
            'write': function(value) {
                clearTimeout(writeTimeoutInstance);
                writeTimeoutInstance = setTimeout(function() {
                    target(value);
                }, timeout);
            }
        });
    },

    'rateLimit': function(target, options) {
        var timeout, method, limitFunction;

        if (typeof options == 'number') {
            timeout = options;
        } else {
            timeout = options['timeout'];
            method = options['method'];
        }

        limitFunction = method == 'notifyWhenChangesStop' ?  debounce : throttle;
        target.limit(function(callback) {
            return limitFunction(callback, timeout);
        });
    },

    'notify': function(target, notifyWhen) {
        target["equalityComparer"] = notifyWhen == "always" ?
            null :  // null equalityComparer means to always notify
            valuesArePrimitiveAndEqual;
    }
};

var primitiveTypes = { 'undefined':1, 'boolean':1, 'number':1, 'string':1 };
function valuesArePrimitiveAndEqual(a, b) {
    var oldValueIsPrimitive = (a === null) || (typeof(a) in primitiveTypes);
    return oldValueIsPrimitive ? (a === b) : false;
}

function throttle(callback, timeout) {
    var timeoutInstance;
    return function () {
        if (!timeoutInstance) {
            timeoutInstance = setTimeout(function() {
                timeoutInstance = undefined;
                callback();
            }, timeout);
        }
    };
}

function debounce(callback, timeout) {
    var timeoutInstance;
    return function () {
        clearTimeout(timeoutInstance);
        timeoutInstance = setTimeout(callback, timeout);
    };
}

function applyExtenders(requestedExtenders) {
    var target = this;
    if (requestedExtenders) {
        ko.utils.objectForEach(requestedExtenders, function(key, value) {
            var extenderHandler = ko.extenders[key];
            if (typeof extenderHandler == 'function') {
                target = extenderHandler(target, value) || target;
            }
        });
    }
    return target;
}

ko.exportSymbol('extenders', ko.extenders);

ko.subscription = function (target, callback, disposeCallback) {
    this.target = target;
    this.callback = callback;
    this.disposeCallback = disposeCallback;
    this.isDisposed = false;
    ko.exportProperty(this, 'dispose', this.dispose);
};
ko.subscription.prototype.dispose = function () {
    this.isDisposed = true;
    this.disposeCallback();
};

ko.subscribable = function () {
    ko.utils.setPrototypeOfOrExtend(this, ko.subscribable['fn']);
    this._subscriptions = {};
}

var defaultEvent = "change";

var ko_subscribable_fn = {
    subscribe: function (callback, callbackTarget, event) {
        var self = this;

        event = event || defaultEvent;
        var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;

        var subscription = new ko.subscription(self, boundCallback, function () {
            ko.utils.arrayRemoveItem(self._subscriptions[event], subscription);
            if (self.afterSubscriptionRemove)
                self.afterSubscriptionRemove(event);
        });

        if (self.beforeSubscriptionAdd)
            self.beforeSubscriptionAdd(event);

        if (!self._subscriptions[event])
            self._subscriptions[event] = [];
        self._subscriptions[event].push(subscription);

        return subscription;
    },

    "notifySubscribers": function (valueToNotify, event) {
        event = event || defaultEvent;
        if (this.hasSubscriptionsForEvent(event)) {
            try {
                ko.dependencyDetection.begin(); // Begin suppressing dependency detection (by setting the top frame to undefined)
                for (var a = this._subscriptions[event].slice(0), i = 0, subscription; subscription = a[i]; ++i) {
                    // In case a subscription was disposed during the arrayForEach cycle, check
                    // for isDisposed on each subscription before invoking its callback
                    if (!subscription.isDisposed)
                        subscription.callback(valueToNotify);
                }
            } finally {
                ko.dependencyDetection.end(); // End suppressing dependency detection
            }
        }
    },

    limit: function(limitFunction) {
        var self = this, selfIsObservable = ko.isObservable(self),
            isPending, previousValue, pendingValue, beforeChange = 'beforeChange';

        if (!self._origNotifySubscribers) {
            self._origNotifySubscribers = self["notifySubscribers"];
            self["notifySubscribers"] = function(value, event) {
                if (!event || event === defaultEvent) {
                    self._rateLimitedChange(value);
                } else if (event === beforeChange) {
                    self._rateLimitedBeforeChange(value);
                } else {
                    self._origNotifySubscribers(value, event);
                }
            };
        }

        var finish = limitFunction(function() {
            // If an observable provided a reference to itself, access it to get the latest value.
            // This allows computed observables to delay calculating their value until needed.
            if (selfIsObservable && pendingValue === self) {
                pendingValue = self();
            }
            isPending = false;
            if (self.isDifferent(previousValue, pendingValue)) {
                self._origNotifySubscribers(previousValue = pendingValue);
            }
        });

        self._rateLimitedChange = function(value) {
            isPending = true;
            pendingValue = value;
            finish();
        };
        self._rateLimitedBeforeChange = function(value) {
            if (!isPending) {
                previousValue = value;
                self._origNotifySubscribers(value, beforeChange);
            }
        };
    },

    hasSubscriptionsForEvent: function(event) {
        return this._subscriptions[event] && this._subscriptions[event].length;
    },

    getSubscriptionsCount: function () {
        var total = 0;
        ko.utils.objectForEach(this._subscriptions, function(eventName, subscriptions) {
            total += subscriptions.length;
        });
        return total;
    },

    isDifferent: function(oldValue, newValue) {
        return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue);
    },

    extend: applyExtenders
};

ko.exportProperty(ko_subscribable_fn, 'subscribe', ko_subscribable_fn.subscribe);
ko.exportProperty(ko_subscribable_fn, 'extend', ko_subscribable_fn.extend);
ko.exportProperty(ko_subscribable_fn, 'getSubscriptionsCount', ko_subscribable_fn.getSubscriptionsCount);

// For browsers that support proto assignment, we overwrite the prototype of each
// observable instance. Since observables are functions, we need Function.prototype
// to still be in the prototype chain.
if (ko.utils.canSetPrototype) {
    ko.utils.setPrototypeOf(ko_subscribable_fn, Function.prototype);
}

ko.subscribable['fn'] = ko_subscribable_fn;


ko.isSubscribable = function (instance) {
    return instance != null && typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function";
};

ko.exportSymbol('subscribable', ko.subscribable);
ko.exportSymbol('isSubscribable', ko.isSubscribable);

ko.computedContext = ko.dependencyDetection = (function () {
    var outerFrames = [],
        currentFrame,
        lastId = 0;

    // Return a unique ID that can be assigned to an observable for dependency tracking.
    // Theoretically, you could eventually overflow the number storage size, resulting
    // in duplicate IDs. But in JavaScript, the largest exact integral value is 2^53
    // or 9,007,199,254,740,992. If you created 1,000,000 IDs per second, it would
    // take over 285 years to reach that number.
    // Reference http://blog.vjeux.com/2010/javascript/javascript-max_int-number-limits.html
    function getId() {
        return ++lastId;
    }

    function begin(options) {
        outerFrames.push(currentFrame);
        currentFrame = options;
    }

    function end() {
        currentFrame = outerFrames.pop();
    }

    return {
        begin: begin,

        end: end,

        registerDependency: function (subscribable) {
            if (currentFrame) {
                if (!ko.isSubscribable(subscribable))
                    throw new Error("Only subscribable things can act as dependencies");
                currentFrame.callback(subscribable, subscribable._id || (subscribable._id = getId()));
            }
        },

        ignore: function (callback, callbackTarget, callbackArgs) {
            try {
                begin();
                return callback.apply(callbackTarget, callbackArgs || []);
            } finally {
                end();
            }
        },

        getDependenciesCount: function () {
            if (currentFrame)
                return currentFrame.computed.getDependenciesCount();
        },

        isInitial: function() {
            if (currentFrame)
                return currentFrame.isInitial;
        }
    };
})();

ko.exportSymbol('computedContext', ko.computedContext);
ko.exportSymbol('computedContext.getDependenciesCount', ko.computedContext.getDependenciesCount);
ko.exportSymbol('computedContext.isInitial', ko.computedContext.isInitial);
ko.exportSymbol('computedContext.isSleeping', ko.computedContext.isSleeping);
ko.observable = function (initialValue) {
    var _latestValue = initialValue;

    function observable() {
        if (arguments.length > 0) {
            // Write

            // Ignore writes if the value hasn't changed
            if (observable.isDifferent(_latestValue, arguments[0])) {
                observable.valueWillMutate();
                _latestValue = arguments[0];
                if (DEBUG) observable._latestValue = _latestValue;
                observable.valueHasMutated();
            }
            return this; // Permits chained assignments
        }
        else {
            // Read
            ko.dependencyDetection.registerDependency(observable); // The caller only needs to be notified of changes if they did a "read" operation
            return _latestValue;
        }
    }
    ko.subscribable.call(observable);
    ko.utils.setPrototypeOfOrExtend(observable, ko.observable['fn']);

    if (DEBUG) observable._latestValue = _latestValue;
    observable.peek = function() { return _latestValue };
    observable.valueHasMutated = function () { observable["notifySubscribers"](_latestValue); }
    observable.valueWillMutate = function () { observable["notifySubscribers"](_latestValue, "beforeChange"); }

    ko.exportProperty(observable, 'peek', observable.peek);
    ko.exportProperty(observable, "valueHasMutated", observable.valueHasMutated);
    ko.exportProperty(observable, "valueWillMutate", observable.valueWillMutate);

    return observable;
}

ko.observable['fn'] = {
    "equalityComparer": valuesArePrimitiveAndEqual
};

var protoProperty = ko.observable.protoProperty = "__ko_proto__";
ko.observable['fn'][protoProperty] = ko.observable;

// Note that for browsers that don't support proto assignment, the
// inheritance chain is created manually in the ko.observable constructor
if (ko.utils.canSetPrototype) {
    ko.utils.setPrototypeOf(ko.observable['fn'], ko.subscribable['fn']);
}

ko.hasPrototype = function(instance, prototype) {
    if ((instance === null) || (instance === undefined) || (instance[protoProperty] === undefined)) return false;
    if (instance[protoProperty] === prototype) return true;
    return ko.hasPrototype(instance[protoProperty], prototype); // Walk the prototype chain
};

ko.isObservable = function (instance) {
    return ko.hasPrototype(instance, ko.observable);
}
ko.isWriteableObservable = function (instance) {
    // Observable
    if ((typeof instance == "function") && instance[protoProperty] === ko.observable)
        return true;
    // Writeable dependent observable
    if ((typeof instance == "function") && (instance[protoProperty] === ko.dependentObservable) && (instance.hasWriteFunction))
        return true;
    // Anything else
    return false;
}


ko.exportSymbol('observable', ko.observable);
ko.exportSymbol('isObservable', ko.isObservable);
ko.exportSymbol('isWriteableObservable', ko.isWriteableObservable);
ko.exportSymbol('isWritableObservable', ko.isWriteableObservable);
ko.observableArray = function (initialValues) {
    initialValues = initialValues || [];

    if (typeof initialValues != 'object' || !('length' in initialValues))
        throw new Error("The argument passed when initializing an observable array must be an array, or null, or undefined.");

    var result = ko.observable(initialValues);
    ko.utils.setPrototypeOfOrExtend(result, ko.observableArray['fn']);
    return result.extend({'trackArrayChanges':true});
};

ko.observableArray['fn'] = {
    'remove': function (valueOrPredicate) {
        var underlyingArray = this.peek();
        var removedValues = [];
        var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
        for (var i = 0; i < underlyingArray.length; i++) {
            var value = underlyingArray[i];
            if (predicate(value)) {
                if (removedValues.length === 0) {
                    this.valueWillMutate();
                }
                removedValues.push(value);
                underlyingArray.splice(i, 1);
                i--;
            }
        }
        if (removedValues.length) {
            this.valueHasMutated();
        }
        return removedValues;
    },

    'removeAll': function (arrayOfValues) {
        // If you passed zero args, we remove everything
        if (arrayOfValues === undefined) {
            var underlyingArray = this.peek();
            var allValues = underlyingArray.slice(0);
            this.valueWillMutate();
            underlyingArray.splice(0, underlyingArray.length);
            this.valueHasMutated();
            return allValues;
        }
        // If you passed an arg, we interpret it as an array of entries to remove
        if (!arrayOfValues)
            return [];
        return this['remove'](function (value) {
            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
        });
    },

    'destroy': function (valueOrPredicate) {
        var underlyingArray = this.peek();
        var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
        this.valueWillMutate();
        for (var i = underlyingArray.length - 1; i >= 0; i--) {
            var value = underlyingArray[i];
            if (predicate(value))
                underlyingArray[i]["_destroy"] = true;
        }
        this.valueHasMutated();
    },

    'destroyAll': function (arrayOfValues) {
        // If you passed zero args, we destroy everything
        if (arrayOfValues === undefined)
            return this['destroy'](function() { return true });

        // If you passed an arg, we interpret it as an array of entries to destroy
        if (!arrayOfValues)
            return [];
        return this['destroy'](function (value) {
            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
        });
    },

    'indexOf': function (item) {
        var underlyingArray = this();
        return ko.utils.arrayIndexOf(underlyingArray, item);
    },

    'replace': function(oldItem, newItem) {
        var index = this['indexOf'](oldItem);
        if (index >= 0) {
            this.valueWillMutate();
            this.peek()[index] = newItem;
            this.valueHasMutated();
        }
    }
};

// Populate ko.observableArray.fn with read/write functions from native arrays
// Important: Do not add any additional functions here that may reasonably be used to *read* data from the array
// because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale
ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], function (methodName) {
    ko.observableArray['fn'][methodName] = function () {
        // Use "peek" to avoid creating a subscription in any computed that we're executing in the context of
        // (for consistency with mutating regular observables)
        var underlyingArray = this.peek();
        this.valueWillMutate();
        this.cacheDiffForKnownOperation(underlyingArray, methodName, arguments);
        var methodCallResult = underlyingArray[methodName].apply(underlyingArray, arguments);
        this.valueHasMutated();
        return methodCallResult;
    };
});

// Populate ko.observableArray.fn with read-only functions from native arrays
ko.utils.arrayForEach(["slice"], function (methodName) {
    ko.observableArray['fn'][methodName] = function () {
        var underlyingArray = this();
        return underlyingArray[methodName].apply(underlyingArray, arguments);
    };
});

// Note that for browsers that don't support proto assignment, the
// inheritance chain is created manually in the ko.observableArray constructor
if (ko.utils.canSetPrototype) {
    ko.utils.setPrototypeOf(ko.observableArray['fn'], ko.observable['fn']);
}

ko.exportSymbol('observableArray', ko.observableArray);
var arrayChangeEventName = 'arrayChange';
ko.extenders['trackArrayChanges'] = function(target) {
    // Only modify the target observable once
    if (target.cacheDiffForKnownOperation) {
        return;
    }
    var trackingChanges = false,
        cachedDiff = null,
        pendingNotifications = 0,
        underlyingSubscribeFunction = target.subscribe;

    // Intercept "subscribe" calls, and for array change events, ensure change tracking is enabled
    target.subscribe = target['subscribe'] = function(callback, callbackTarget, event) {
        if (event === arrayChangeEventName) {
            trackChanges();
        }
        return underlyingSubscribeFunction.apply(this, arguments);
    };

    function trackChanges() {
        // Calling 'trackChanges' multiple times is the same as calling it once
        if (trackingChanges) {
            return;
        }

        trackingChanges = true;

        // Intercept "notifySubscribers" to track how many times it was called.
        var underlyingNotifySubscribersFunction = target['notifySubscribers'];
        target['notifySubscribers'] = function(valueToNotify, event) {
            if (!event || event === defaultEvent) {
                ++pendingNotifications;
            }
            return underlyingNotifySubscribersFunction.apply(this, arguments);
        };

        // Each time the array changes value, capture a clone so that on the next
        // change it's possible to produce a diff
        var previousContents = [].concat(target.peek() || []);
        cachedDiff = null;
        target.subscribe(function(currentContents) {
            // Make a copy of the current contents and ensure it's an array
            currentContents = [].concat(currentContents || []);

            // Compute the diff and issue notifications, but only if someone is listening
            if (target.hasSubscriptionsForEvent(arrayChangeEventName)) {
                var changes = getChanges(previousContents, currentContents);
                if (changes.length) {
                    target['notifySubscribers'](changes, arrayChangeEventName);
                }
            }

            // Eliminate references to the old, removed items, so they can be GCed
            previousContents = currentContents;
            cachedDiff = null;
            pendingNotifications = 0;
        });
    }

    function getChanges(previousContents, currentContents) {
        // We try to re-use cached diffs.
        // The scenarios where pendingNotifications > 1 are when using rate-limiting or the Deferred Updates
        // plugin, which without this check would not be compatible with arrayChange notifications. Normally,
        // notifications are issued immediately so we wouldn't be queueing up more than one.
        if (!cachedDiff || pendingNotifications > 1) {
            cachedDiff = ko.utils.compareArrays(previousContents, currentContents, { 'sparse': true });
        }

        return cachedDiff;
    }

    target.cacheDiffForKnownOperation = function(rawArray, operationName, args) {
        // Only run if we're currently tracking changes for this observable array
        // and there aren't any pending deferred notifications.
        if (!trackingChanges || pendingNotifications) {
            return;
        }
        var diff = [],
            arrayLength = rawArray.length,
            argsLength = args.length,
            offset = 0;

        function pushDiff(status, value, index) {
            return diff[diff.length] = { 'status': status, 'value': value, 'index': index };
        }
        switch (operationName) {
            case 'push':
                offset = arrayLength;
            case 'unshift':
                for (var index = 0; index < argsLength; index++) {
                    pushDiff('added', args[index], offset + index);
                }
                break;

            case 'pop':
                offset = arrayLength - 1;
            case 'shift':
                if (arrayLength) {
                    pushDiff('deleted', rawArray[offset], offset);
                }
                break;

            case 'splice':
                // Negative start index means 'from end of array'. After that we clamp to [0...arrayLength].
                // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice
                var startIndex = Math.min(Math.max(0, args[0] < 0 ? arrayLength + args[0] : args[0]), arrayLength),
                    endDeleteIndex = argsLength === 1 ? arrayLength : Math.min(startIndex + (args[1] || 0), arrayLength),
                    endAddIndex = startIndex + argsLength - 2,
                    endIndex = Math.max(endDeleteIndex, endAddIndex),
                    additions = [], deletions = [];
                for (var index = startIndex, argsIndex = 2; index < endIndex; ++index, ++argsIndex) {
                    if (index < endDeleteIndex)
                        deletions.push(pushDiff('deleted', rawArray[index], index));
                    if (index < endAddIndex)
                        additions.push(pushDiff('added', args[argsIndex], index));
                }
                ko.utils.findMovesInArrayComparison(deletions, additions);
                break;

            default:
                return;
        }
        cachedDiff = diff;
    };
};
ko.computed = ko.dependentObservable = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget, options) {
    var _latestValue,
        _needsEvaluation = true,
        _isBeingEvaluated = false,
        _suppressDisposalUntilDisposeWhenReturnsFalse = false,
        _isDisposed = false,
        readFunction = evaluatorFunctionOrOptions,
        pure = false,
        isSleeping = false;

    if (readFunction && typeof readFunction == "object") {
        // Single-parameter syntax - everything is on this "options" param
        options = readFunction;
        readFunction = options["read"];
    } else {
        // Multi-parameter syntax - construct the options according to the params passed
        options = options || {};
        if (!readFunction)
            readFunction = options["read"];
    }
    if (typeof readFunction != "function")
        throw new Error("Pass a function that returns the value of the ko.computed");

    function addSubscriptionToDependency(subscribable, id) {
        if (!_subscriptionsToDependencies[id]) {
            _subscriptionsToDependencies[id] = subscribable.subscribe(evaluatePossiblyAsync);
            ++_dependenciesCount;
        }
    }

    function disposeAllSubscriptionsToDependencies() {
        ko.utils.objectForEach(_subscriptionsToDependencies, function (id, subscription) {
            subscription.dispose();
        });
        _subscriptionsToDependencies = {};
    }

    function disposeComputed() {
        disposeAllSubscriptionsToDependencies();
        _dependenciesCount = 0;
        _isDisposed = true;
        _needsEvaluation = false;
    }

    function evaluatePossiblyAsync() {
        var throttleEvaluationTimeout = dependentObservable['throttleEvaluation'];
        if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {
            clearTimeout(evaluationTimeoutInstance);
            evaluationTimeoutInstance = setTimeout(evaluateImmediate, throttleEvaluationTimeout);
        } else if (dependentObservable._evalRateLimited) {
            dependentObservable._evalRateLimited();
        } else {
            evaluateImmediate();
        }
    }

    function evaluateImmediate(suppressChangeNotification) {
        if (_isBeingEvaluated) {
            if (pure) {
                throw Error("A 'pure' computed must not be called recursively");
            }
            // If the evaluation of a ko.computed causes side effects, it's possible that it will trigger its own re-evaluation.
            // This is not desirable (it's hard for a developer to realise a chain of dependencies might cause this, and they almost
            // certainly didn't intend infinite re-evaluations). So, for predictability, we simply prevent ko.computeds from causing
            // their own re-evaluation. Further discussion at https://github.com/SteveSanderson/knockout/pull/387
            return;
        }

        // Do not evaluate (and possibly capture new dependencies) if disposed
        if (_isDisposed) {
            return;
        }

        if (disposeWhen && disposeWhen()) {
            // See comment below about _suppressDisposalUntilDisposeWhenReturnsFalse
            if (!_suppressDisposalUntilDisposeWhenReturnsFalse) {
                dispose();
                return;
            }
        } else {
            // It just did return false, so we can stop suppressing now
            _suppressDisposalUntilDisposeWhenReturnsFalse = false;
        }

        _isBeingEvaluated = true;

        // When sleeping, recalculate the value and return.
        if (isSleeping) {
            try {
                var dependencyTracking = {};
                ko.dependencyDetection.begin({
                    callback: function (subscribable, id) {
                        if (!dependencyTracking[id]) {
                            dependencyTracking[id] = 1;
                            ++_dependenciesCount;
                        }
                    },
                    computed: dependentObservable,
                    isInitial: undefined
                });
                _dependenciesCount = 0;
                _latestValue = readFunction.call(evaluatorFunctionTarget);
            } finally {
                ko.dependencyDetection.end();
                _isBeingEvaluated = false;
            }
        } else {
            try {
                // Initially, we assume that none of the subscriptions are still being used (i.e., all are candidates for disposal).
                // Then, during evaluation, we cross off any that are in fact still being used.
                var disposalCandidates = _subscriptionsToDependencies, disposalCount = _dependenciesCount;
                ko.dependencyDetection.begin({
                    callback: function(subscribable, id) {
                        if (!_isDisposed) {
                            if (disposalCount && disposalCandidates[id]) {
                                // Don't want to dispose this subscription, as it's still being used
                                _subscriptionsToDependencies[id] = disposalCandidates[id];
                                ++_dependenciesCount;
                                delete disposalCandidates[id];
                                --disposalCount;
                            } else {
                                // Brand new subscription - add it
                                addSubscriptionToDependency(subscribable, id);
                            }
                        }
                    },
                    computed: dependentObservable,
                    isInitial: pure ? undefined : !_dependenciesCount        // If we're evaluating when there are no previous dependencies, it must be the first time
                });

                _subscriptionsToDependencies = {};
                _dependenciesCount = 0;

                try {
                    var newValue = evaluatorFunctionTarget ? readFunction.call(evaluatorFunctionTarget) : readFunction();

                } finally {
                    ko.dependencyDetection.end();

                    // For each subscription no longer being used, remove it from the active subscriptions list and dispose it
                    if (disposalCount) {
                        ko.utils.objectForEach(disposalCandidates, function(id, toDispose) {
                            toDispose.dispose();
                        });
                    }

                    _needsEvaluation = false;
                }

                if (dependentObservable.isDifferent(_latestValue, newValue)) {
                    dependentObservable["notifySubscribers"](_latestValue, "beforeChange");

                    _latestValue = newValue;
                    if (DEBUG) dependentObservable._latestValue = _latestValue;

                    if (suppressChangeNotification !== true) {  // Check for strict true value since setTimeout in Firefox passes a numeric value to the function
                        dependentObservable["notifySubscribers"](_latestValue);
                    }
                }
            } finally {
                _isBeingEvaluated = false;
            }
        }

        if (!_dependenciesCount)
            dispose();
    }

    function dependentObservable() {
        if (arguments.length > 0) {
            if (typeof writeFunction === "function") {
                // Writing a value
                writeFunction.apply(evaluatorFunctionTarget, arguments);
            } else {
                throw new Error("Cannot write a value to a ko.computed unless you specify a 'write' option. If you wish to read the current value, don't pass any parameters.");
            }
            return this; // Permits chained assignments
        } else {
            // Reading the value
            ko.dependencyDetection.registerDependency(dependentObservable);
            if (_needsEvaluation)
                evaluateImmediate(true /* suppressChangeNotification */);
            return _latestValue;
        }
    }

    function peek() {
        // Peek won't re-evaluate, except to get the initial value when "deferEvaluation" is set, or while the computed is sleeping.
        // Those are the only times that both of these conditions will be satisfied.
        if (_needsEvaluation && !_dependenciesCount)
            evaluateImmediate(true /* suppressChangeNotification */);
        return _latestValue;
    }

    function isActive() {
        return _needsEvaluation || _dependenciesCount > 0;
    }

    // By here, "options" is always non-null
    var writeFunction = options["write"],
        disposeWhenNodeIsRemoved = options["disposeWhenNodeIsRemoved"] || options.disposeWhenNodeIsRemoved || null,
        disposeWhenOption = options["disposeWhen"] || options.disposeWhen,
        disposeWhen = disposeWhenOption,
        dispose = disposeComputed,
        _subscriptionsToDependencies = {},
        _dependenciesCount = 0,
        evaluationTimeoutInstance = null;

    if (!evaluatorFunctionTarget)
        evaluatorFunctionTarget = options["owner"];

    ko.subscribable.call(dependentObservable);
    ko.utils.setPrototypeOfOrExtend(dependentObservable, ko.dependentObservable['fn']);

    dependentObservable.peek = peek;
    dependentObservable.getDependenciesCount = function () { return _dependenciesCount; };
    dependentObservable.hasWriteFunction = typeof options["write"] === "function";
    dependentObservable.dispose = function () { dispose(); };
    dependentObservable.isActive = isActive;

    // Replace the limit function with one that delays evaluation as well.
    var originalLimit = dependentObservable.limit;
    dependentObservable.limit = function(limitFunction) {
        originalLimit.call(dependentObservable, limitFunction);
        dependentObservable._evalRateLimited = function() {
            dependentObservable._rateLimitedBeforeChange(_latestValue);

            _needsEvaluation = true;    // Mark as dirty

            // Pass the observable to the rate-limit code, which will access it when
            // it's time to do the notification.
            dependentObservable._rateLimitedChange(dependentObservable);
        }
    };

    if (options['pure']) {
        pure = true;
        isSleeping = true;     // Starts off sleeping; will awake on the first subscription
        dependentObservable.beforeSubscriptionAdd = function () {
            // If asleep, wake up the computed and evaluate to register any dependencies.
            if (isSleeping) {
                isSleeping = false;
                evaluateImmediate(true /* suppressChangeNotification */);
            }
        }
        dependentObservable.afterSubscriptionRemove = function () {
            if (!dependentObservable.getSubscriptionsCount()) {
                disposeAllSubscriptionsToDependencies();
                isSleeping = _needsEvaluation = true;
            }
        }
    } else if (options['deferEvaluation']) {
        // This will force a computed with deferEvaluation to evaluate when the first subscriptions is registered.
        dependentObservable.beforeSubscriptionAdd = function () {
            peek();
            delete dependentObservable.beforeSubscriptionAdd;
        }
    }

    ko.exportProperty(dependentObservable, 'peek', dependentObservable.peek);
    ko.exportProperty(dependentObservable, 'dispose', dependentObservable.dispose);
    ko.exportProperty(dependentObservable, 'isActive', dependentObservable.isActive);
    ko.exportProperty(dependentObservable, 'getDependenciesCount', dependentObservable.getDependenciesCount);

    // Add a "disposeWhen" callback that, on each evaluation, disposes if the node was removed without using ko.removeNode.
    if (disposeWhenNodeIsRemoved) {
        // Since this computed is associated with a DOM node, and we don't want to dispose the computed
        // until the DOM node is *removed* from the document (as opposed to never having been in the document),
        // we'll prevent disposal until "disposeWhen" first returns false.
        _suppressDisposalUntilDisposeWhenReturnsFalse = true;

        // Only watch for the node's disposal if the value really is a node. It might not be,
        // e.g., { disposeWhenNodeIsRemoved: true } can be used to opt into the "only dispose
        // after first false result" behaviour even if there's no specific node to watch. This
        // technique is intended for KO's internal use only and shouldn't be documented or used
        // by application code, as it's likely to change in a future version of KO.
        if (disposeWhenNodeIsRemoved.nodeType) {
            disposeWhen = function () {
                return !ko.utils.domNodeIsAttachedToDocument(disposeWhenNodeIsRemoved) || (disposeWhenOption && disposeWhenOption());
            };
        }
    }

    // Evaluate, unless sleeping or deferEvaluation is true
    if (!isSleeping && !options['deferEvaluation'])
        evaluateImmediate();

    // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is
    // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).
    if (disposeWhenNodeIsRemoved && isActive() && disposeWhenNodeIsRemoved.nodeType) {
        dispose = function() {
            ko.utils.domNodeDisposal.removeDisposeCallback(disposeWhenNodeIsRemoved, dispose);
            disposeComputed();
        };
        ko.utils.domNodeDisposal.addDisposeCallback(disposeWhenNodeIsRemoved, dispose);
    }

    return dependentObservable;
};

ko.isComputed = function(instance) {
    return ko.hasPrototype(instance, ko.dependentObservable);
};

var protoProp = ko.observable.protoProperty; // == "__ko_proto__"
ko.dependentObservable[protoProp] = ko.observable;

ko.dependentObservable['fn'] = {
    "equalityComparer": valuesArePrimitiveAndEqual
};
ko.dependentObservable['fn'][protoProp] = ko.dependentObservable;

// Note that for browsers that don't support proto assignment, the
// inheritance chain is created manually in the ko.dependentObservable constructor
if (ko.utils.canSetPrototype) {
    ko.utils.setPrototypeOf(ko.dependentObservable['fn'], ko.subscribable['fn']);
}

ko.exportSymbol('dependentObservable', ko.dependentObservable);
ko.exportSymbol('computed', ko.dependentObservable); // Make "ko.computed" an alias for "ko.dependentObservable"
ko.exportSymbol('isComputed', ko.isComputed);

ko.pureComputed = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget) {
    if (typeof evaluatorFunctionOrOptions === 'function') {
        return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true});
    } else {
        evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions);   // make a copy of the parameter object
        evaluatorFunctionOrOptions['pure'] = true;
        return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);
    }
}
ko.exportSymbol('pureComputed', ko.pureComputed);

(function() {
    var maxNestedObservableDepth = 10; // Escape the (unlikely) pathalogical case where an observable's current value is itself (or similar reference cycle)

    ko.toJS = function(rootObject) {
        if (arguments.length == 0)
            throw new Error("When calling ko.toJS, pass the object you want to convert.");

        // We just unwrap everything at every level in the object graph
        return mapJsObjectGraph(rootObject, function(valueToMap) {
            // Loop because an observable's value might in turn be another observable wrapper
            for (var i = 0; ko.isObservable(valueToMap) && (i < maxNestedObservableDepth); i++)
                valueToMap = valueToMap();
            return valueToMap;
        });
    };

    ko.toJSON = function(rootObject, replacer, space) {     // replacer and space are optional
        var plainJavaScriptObject = ko.toJS(rootObject);
        return ko.utils.stringifyJson(plainJavaScriptObject, replacer, space);
    };

    function mapJsObjectGraph(rootObject, mapInputCallback, visitedObjects) {
        visitedObjects = visitedObjects || new objectLookup();

        rootObject = mapInputCallback(rootObject);
        var canHaveProperties = (typeof rootObject == "object") && (rootObject !== null) && (rootObject !== undefined) && (!(rootObject instanceof Date)) && (!(rootObject instanceof String)) && (!(rootObject instanceof Number)) && (!(rootObject instanceof Boolean));
        if (!canHaveProperties)
            return rootObject;

        var outputProperties = rootObject instanceof Array ? [] : {};
        visitedObjects.save(rootObject, outputProperties);

        visitPropertiesOrArrayEntries(rootObject, function(indexer) {
            var propertyValue = mapInputCallback(rootObject[indexer]);

            switch (typeof propertyValue) {
                case "boolean":
                case "number":
                case "string":
                case "function":
                    outputProperties[indexer] = propertyValue;
                    break;
                case "object":
                case "undefined":
                    var previouslyMappedValue = visitedObjects.get(propertyValue);
                    outputProperties[indexer] = (previouslyMappedValue !== undefined)
                        ? previouslyMappedValue
                        : mapJsObjectGraph(propertyValue, mapInputCallback, visitedObjects);
                    break;
            }
        });

        return outputProperties;
    }

    function visitPropertiesOrArrayEntries(rootObject, visitorCallback) {
        if (rootObject instanceof Array) {
            for (var i = 0; i < rootObject.length; i++)
                visitorCallback(i);

            // For arrays, also respect toJSON property for custom mappings (fixes #278)
            if (typeof rootObject['toJSON'] == 'function')
                visitorCallback('toJSON');
        } else {
            for (var propertyName in rootObject) {
                visitorCallback(propertyName);
            }
        }
    };

    function objectLookup() {
        this.keys = [];
        this.values = [];
    };

    objectLookup.prototype = {
        constructor: objectLookup,
        save: function(key, value) {
            var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
            if (existingIndex >= 0)
                this.values[existingIndex] = value;
            else {
                this.keys.push(key);
                this.values.push(value);
            }
        },
        get: function(key) {
            var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
            return (existingIndex >= 0) ? this.values[existingIndex] : undefined;
        }
    };
})();

ko.exportSymbol('toJS', ko.toJS);
ko.exportSymbol('toJSON', ko.toJSON);
(function () {
    var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__';

    // Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values
    // are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values
    // that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.
    ko.selectExtensions = {
        readValue : function(element) {
            switch (ko.utils.tagNameLower(element)) {
                case 'option':
                    if (element[hasDomDataExpandoProperty] === true)
                        return ko.utils.domData.get(element, ko.bindingHandlers.options.optionValueDomDataKey);
                    return ko.utils.ieVersion <= 7
                        ? (element.getAttributeNode('value') && element.getAttributeNode('value').specified ? element.value : element.text)
                        : element.value;
                case 'select':
                    return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;
                default:
                    return element.value;
            }
        },

        writeValue: function(element, value, allowUnset) {
            switch (ko.utils.tagNameLower(element)) {
                case 'option':
                    switch(typeof value) {
                        case "string":
                            ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, undefined);
                            if (hasDomDataExpandoProperty in element) { // IE <= 8 throws errors if you delete non-existent properties from a DOM node
                                delete element[hasDomDataExpandoProperty];
                            }
                            element.value = value;
                            break;
                        default:
                            // Store arbitrary object using DomData
                            ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, value);
                            element[hasDomDataExpandoProperty] = true;

                            // Special treatment of numbers is just for backward compatibility. KO 1.2.1 wrote numerical values to element.value.
                            element.value = typeof value === "number" ? value : "";
                            break;
                    }
                    break;
                case 'select':
                    if (value === "" || value === null)       // A blank string or null value will select the caption
                        value = undefined;
                    var selection = -1;
                    for (var i = 0, n = element.options.length, optionValue; i < n; ++i) {
                        optionValue = ko.selectExtensions.readValue(element.options[i]);
                        // Include special check to handle selecting a caption with a blank string value
                        if (optionValue == value || (optionValue == "" && value === undefined)) {
                            selection = i;
                            break;
                        }
                    }
                    if (allowUnset || selection >= 0 || (value === undefined && element.size > 1)) {
                        element.selectedIndex = selection;
                    }
                    break;
                default:
                    if ((value === null) || (value === undefined))
                        value = "";
                    element.value = value;
                    break;
            }
        }
    };
})();

ko.exportSymbol('selectExtensions', ko.selectExtensions);
ko.exportSymbol('selectExtensions.readValue', ko.selectExtensions.readValue);
ko.exportSymbol('selectExtensions.writeValue', ko.selectExtensions.writeValue);
ko.expressionRewriting = (function () {
    var javaScriptReservedWords = ["true", "false", "null", "undefined"];

    // Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor
    // This is designed to be simple and avoid false negatives, but could produce false positives (e.g., a+b.c).
    // This also will not properly handle nested brackets (e.g., obj1[obj2['prop']]; see #911).
    var javaScriptAssignmentTarget = /^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i;

    function getWriteableValue(expression) {
        if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)
            return false;
        var match = expression.match(javaScriptAssignmentTarget);
        return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;
    }

    // The following regular expressions will be used to split an object-literal string into tokens

        // These two match strings, either with double quotes or single quotes
    var stringDouble = '"(?:[^"\\\\]|\\\\.)*"',
        stringSingle = "'(?:[^'\\\\]|\\\\.)*'",
        // Matches a regular expression (text enclosed by slashes), but will also match sets of divisions
        // as a regular expression (this is handled by the parsing loop below).
        stringRegexp = '/(?:[^/\\\\]|\\\\.)*/\w*',
        // These characters have special meaning to the parser and must not appear in the middle of a
        // token, except as part of a string.
        specials = ',"\'{}()/:[\\]',
        // Match text (at least two characters) that does not contain any of the above special characters,
        // although some of the special characters are allowed to start it (all but the colon and comma).
        // The text can contain spaces, but leading or trailing spaces are skipped.
        everyThingElse = '[^\\s:,/][^' + specials + ']*[^\\s' + specials + ']',
        // Match any non-space character not matched already. This will match colons and commas, since they're
        // not matched by "everyThingElse", but will also match any other single character that wasn't already
        // matched (for example: in "a: 1, b: 2", each of the non-space characters will be matched by oneNotSpace).
        oneNotSpace = '[^\\s]',

        // Create the actual regular expression by or-ing the above strings. The order is important.
        bindingToken = RegExp(stringDouble + '|' + stringSingle + '|' + stringRegexp + '|' + everyThingElse + '|' + oneNotSpace, 'g'),

        // Match end of previous token to determine whether a slash is a division or regex.
        divisionLookBehind = /[\])"'A-Za-z0-9_$]+$/,
        keywordRegexLookBehind = {'in':1,'return':1,'typeof':1};

    function parseObjectLiteral(objectLiteralString) {
        // Trim leading and trailing spaces from the string
        var str = ko.utils.stringTrim(objectLiteralString);

        // Trim braces '{' surrounding the whole object literal
        if (str.charCodeAt(0) === 123) str = str.slice(1, -1);

        // Split into tokens
        var result = [], toks = str.match(bindingToken), key, values, depth = 0;

        if (toks) {
            // Append a comma so that we don't need a separate code block to deal with the last item
            toks.push(',');

            for (var i = 0, tok; tok = toks[i]; ++i) {
                var c = tok.charCodeAt(0);
                // A comma signals the end of a key/value pair if depth is zero
                if (c === 44) { // ","
                    if (depth <= 0) {
                        if (key)
                            result.push(values ? {key: key, value: values.join('')} : {'unknown': key});
                        key = values = depth = 0;
                        continue;
                    }
                // Simply skip the colon that separates the name and value
                } else if (c === 58) { // ":"
                    if (!values)
                        continue;
                // A set of slashes is initially matched as a regular expression, but could be division
                } else if (c === 47 && i && tok.length > 1) {  // "/"
                    // Look at the end of the previous token to determine if the slash is actually division
                    var match = toks[i-1].match(divisionLookBehind);
                    if (match && !keywordRegexLookBehind[match[0]]) {
                        // The slash is actually a division punctuator; re-parse the remainder of the string (not including the slash)
                        str = str.substr(str.indexOf(tok) + 1);
                        toks = str.match(bindingToken);
                        toks.push(',');
                        i = -1;
                        // Continue with just the slash
                        tok = '/';
                    }
                // Increment depth for parentheses, braces, and brackets so that interior commas are ignored
                } else if (c === 40 || c === 123 || c === 91) { // '(', '{', '['
                    ++depth;
                } else if (c === 41 || c === 125 || c === 93) { // ')', '}', ']'
                    --depth;
                // The key must be a single token; if it's a string, trim the quotes
                } else if (!key && !values) {
                    key = (c === 34 || c === 39) /* '"', "'" */ ? tok.slice(1, -1) : tok;
                    continue;
                }
                if (values)
                    values.push(tok);
                else
                    values = [tok];
            }
        }
        return result;
    }

    // Two-way bindings include a write function that allow the handler to update the value even if it's not an observable.
    var twoWayBindings = {};

    function preProcessBindings(bindingsStringOrKeyValueArray, bindingOptions) {
        bindingOptions = bindingOptions || {};

        function processKeyValue(key, val) {
            var writableVal;
            function callPreprocessHook(obj) {
                return (obj && obj['preprocess']) ? (val = obj['preprocess'](val, key, processKeyValue)) : true;
            }
            if (!bindingParams) {
                if (!callPreprocessHook(ko['getBindingHandler'](key)))
                    return;

                if (twoWayBindings[key] && (writableVal = getWriteableValue(val))) {
                    // For two-way bindings, provide a write method in case the value
                    // isn't a writable observable.
                    propertyAccessorResultStrings.push("'" + key + "':function(_z){" + writableVal + "=_z}");
                }
            }
            // Values are wrapped in a function so that each value can be accessed independently
            if (makeValueAccessors) {
                val = 'function(){return ' + val + ' }';
            }
            resultStrings.push("'" + key + "':" + val);
        }

        var resultStrings = [],
            propertyAccessorResultStrings = [],
            makeValueAccessors = bindingOptions['valueAccessors'],
            bindingParams = bindingOptions['bindingParams'],
            keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
                parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;

        ko.utils.arrayForEach(keyValueArray, function(keyValue) {
            processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value);
        });

        if (propertyAccessorResultStrings.length)
            processKeyValue('_ko_property_writers', "{" + propertyAccessorResultStrings.join(",") + " }");

        return resultStrings.join(",");
    }

    return {
        bindingRewriteValidators: [],

        twoWayBindings: twoWayBindings,

        parseObjectLiteral: parseObjectLiteral,

        preProcessBindings: preProcessBindings,

        keyValueArrayContainsKey: function(keyValueArray, key) {
            for (var i = 0; i < keyValueArray.length; i++)
                if (keyValueArray[i]['key'] == key)
                    return true;
            return false;
        },

        // Internal, private KO utility for updating model properties from within bindings
        // property:            If the property being updated is (or might be) an observable, pass it here
        //                      If it turns out to be a writable observable, it will be written to directly
        // allBindings:         An object with a get method to retrieve bindings in the current execution context.
        //                      This will be searched for a '_ko_property_writers' property in case you're writing to a non-observable
        // key:                 The key identifying the property to be written. Example: for { hasFocus: myValue }, write to 'myValue' by specifying the key 'hasFocus'
        // value:               The value to be written
        // checkIfDifferent:    If true, and if the property being written is a writable observable, the value will only be written if
        //                      it is !== existing value on that writable observable
        writeValueToProperty: function(property, allBindings, key, value, checkIfDifferent) {
            if (!property || !ko.isObservable(property)) {
                var propWriters = allBindings.get('_ko_property_writers');
                if (propWriters && propWriters[key])
                    propWriters[key](value);
            } else if (ko.isWriteableObservable(property) && (!checkIfDifferent || property.peek() !== value)) {
                property(value);
            }
        }
    };
})();

ko.exportSymbol('expressionRewriting', ko.expressionRewriting);
ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators);
ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral);
ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings);

// Making bindings explicitly declare themselves as "two way" isn't ideal in the long term (it would be better if
// all bindings could use an official 'property writer' API without needing to declare that they might). However,
// since this is not, and has never been, a public API (_ko_property_writers was never documented), it's acceptable
// as an internal implementation detail in the short term.
// For those developers who rely on _ko_property_writers in their custom bindings, we expose _twoWayBindings as an
// undocumented feature that makes it relatively easy to upgrade to KO 3.0. However, this is still not an official
// public API, and we reserve the right to remove it at any time if we create a real public property writers API.
ko.exportSymbol('expressionRewriting._twoWayBindings', ko.expressionRewriting.twoWayBindings);

// For backward compatibility, define the following aliases. (Previously, these function names were misleading because
// they referred to JSON specifically, even though they actually work with arbitrary JavaScript object literal expressions.)
ko.exportSymbol('jsonExpressionRewriting', ko.expressionRewriting);
ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.expressionRewriting.preProcessBindings);
(function() {
    // "Virtual elements" is an abstraction on top of the usual DOM API which understands the notion that comment nodes
    // may be used to represent hierarchy (in addition to the DOM's natural hierarchy).
    // If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state
    // of that virtual hierarchy
    //
    // The point of all this is to support containerless templates (e.g., <!-- ko foreach:someCollection -->blah<!-- /ko -->)
    // without having to scatter special cases all over the binding and templating code.

    // IE 9 cannot reliably read the "nodeValue" property of a comment node (see https://github.com/SteveSanderson/knockout/issues/186)
    // but it does give them a nonstandard alternative property called "text" that it can read reliably. Other browsers don't have that property.
    // So, use node.text where available, and node.nodeValue elsewhere
    var commentNodesHaveTextProperty = document && document.createComment("test").text === "<!--test-->";

    var startCommentRegex = commentNodesHaveTextProperty ? /^<!--\s*ko(?:\s+([\s\S]+))?\s*-->$/ : /^\s*ko(?:\s+([\s\S]+))?\s*$/;
    var endCommentRegex =   commentNodesHaveTextProperty ? /^<!--\s*\/ko\s*-->$/ : /^\s*\/ko\s*$/;
    var htmlTagsWithOptionallyClosingChildren = { 'ul': true, 'ol': true };

    function isStartComment(node) {
        return (node.nodeType == 8) && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
    }

    function isEndComment(node) {
        return (node.nodeType == 8) && endCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
    }

    function getVirtualChildren(startComment, allowUnbalanced) {
        var currentNode = startComment;
        var depth = 1;
        var children = [];
        while (currentNode = currentNode.nextSibling) {
            if (isEndComment(currentNode)) {
                depth--;
                if (depth === 0)
                    return children;
            }

            children.push(currentNode);

            if (isStartComment(currentNode))
                depth++;
        }
        if (!allowUnbalanced)
            throw new Error("Cannot find closing comment tag to match: " + startComment.nodeValue);
        return null;
    }

    function getMatchingEndComment(startComment, allowUnbalanced) {
        var allVirtualChildren = getVirtualChildren(startComment, allowUnbalanced);
        if (allVirtualChildren) {
            if (allVirtualChildren.length > 0)
                return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;
            return startComment.nextSibling;
        } else
            return null; // Must have no matching end comment, and allowUnbalanced is true
    }

    function getUnbalancedChildTags(node) {
        // e.g., from <div>OK</div><!-- ko blah --><span>Another</span>, returns: <!-- ko blah --><span>Another</span>
        //       from <div>OK</div><!-- /ko --><!-- /ko -->,             returns: <!-- /ko --><!-- /ko -->
        var childNode = node.firstChild, captureRemaining = null;
        if (childNode) {
            do {
                if (captureRemaining)                   // We already hit an unbalanced node and are now just scooping up all subsequent nodes
                    captureRemaining.push(childNode);
                else if (isStartComment(childNode)) {
                    var matchingEndComment = getMatchingEndComment(childNode, /* allowUnbalanced: */ true);
                    if (matchingEndComment)             // It's a balanced tag, so skip immediately to the end of this virtual set
                        childNode = matchingEndComment;
                    else
                        captureRemaining = [childNode]; // It's unbalanced, so start capturing from this point
                } else if (isEndComment(childNode)) {
                    captureRemaining = [childNode];     // It's unbalanced (if it wasn't, we'd have skipped over it already), so start capturing
                }
            } while (childNode = childNode.nextSibling);
        }
        return captureRemaining;
    }

    ko.virtualElements = {
        allowedBindings: {},

        childNodes: function(node) {
            return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;
        },

        emptyNode: function(node) {
            if (!isStartComment(node))
                ko.utils.emptyDomNode(node);
            else {
                var virtualChildren = ko.virtualElements.childNodes(node);
                for (var i = 0, j = virtualChildren.length; i < j; i++)
                    ko.removeNode(virtualChildren[i]);
            }
        },

        setDomNodeChildren: function(node, childNodes) {
            if (!isStartComment(node))
                ko.utils.setDomNodeChildren(node, childNodes);
            else {
                ko.virtualElements.emptyNode(node);
                var endCommentNode = node.nextSibling; // Must be the next sibling, as we just emptied the children
                for (var i = 0, j = childNodes.length; i < j; i++)
                    endCommentNode.parentNode.insertBefore(childNodes[i], endCommentNode);
            }
        },

        prepend: function(containerNode, nodeToPrepend) {
            if (!isStartComment(containerNode)) {
                if (containerNode.firstChild)
                    containerNode.insertBefore(nodeToPrepend, containerNode.firstChild);
                else
                    containerNode.appendChild(nodeToPrepend);
            } else {
                // Start comments must always have a parent and at least one following sibling (the end comment)
                containerNode.parentNode.insertBefore(nodeToPrepend, containerNode.nextSibling);
            }
        },

        insertAfter: function(containerNode, nodeToInsert, insertAfterNode) {
            if (!insertAfterNode) {
                ko.virtualElements.prepend(containerNode, nodeToInsert);
            } else if (!isStartComment(containerNode)) {
                // Insert after insertion point
                if (insertAfterNode.nextSibling)
                    containerNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
                else
                    containerNode.appendChild(nodeToInsert);
            } else {
                // Children of start comments must always have a parent and at least one following sibling (the end comment)
                containerNode.parentNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
            }
        },

        firstChild: function(node) {
            if (!isStartComment(node))
                return node.firstChild;
            if (!node.nextSibling || isEndComment(node.nextSibling))
                return null;
            return node.nextSibling;
        },

        nextSibling: function(node) {
            if (isStartComment(node))
                node = getMatchingEndComment(node);
            if (node.nextSibling && isEndComment(node.nextSibling))
                return null;
            return node.nextSibling;
        },

        hasBindingValue: isStartComment,

        virtualNodeBindingValue: function(node) {
            var regexMatch = (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);
            return regexMatch ? regexMatch[1] : null;
        },

        normaliseVirtualElementDomStructure: function(elementVerified) {
            // Workaround for https://github.com/SteveSanderson/knockout/issues/155
            // (IE <= 8 or IE 9 quirks mode parses your HTML weirdly, treating closing </li> tags as if they don't exist, thereby moving comment nodes
            // that are direct descendants of <ul> into the preceding <li>)
            if (!htmlTagsWithOptionallyClosingChildren[ko.utils.tagNameLower(elementVerified)])
                return;

            // Scan immediate children to see if they contain unbalanced comment tags. If they do, those comment tags
            // must be intended to appear *after* that child, so move them there.
            var childNode = elementVerified.firstChild;
            if (childNode) {
                do {
                    if (childNode.nodeType === 1) {
                        var unbalancedTags = getUnbalancedChildTags(childNode);
                        if (unbalancedTags) {
                            // Fix up the DOM by moving the unbalanced tags to where they most likely were intended to be placed - *after* the child
                            var nodeToInsertBefore = childNode.nextSibling;
                            for (var i = 0; i < unbalancedTags.length; i++) {
                                if (nodeToInsertBefore)
                                    elementVerified.insertBefore(unbalancedTags[i], nodeToInsertBefore);
                                else
                                    elementVerified.appendChild(unbalancedTags[i]);
                            }
                        }
                    }
                } while (childNode = childNode.nextSibling);
            }
        }
    };
})();
ko.exportSymbol('virtualElements', ko.virtualElements);
ko.exportSymbol('virtualElements.allowedBindings', ko.virtualElements.allowedBindings);
ko.exportSymbol('virtualElements.emptyNode', ko.virtualElements.emptyNode);
//ko.exportSymbol('virtualElements.firstChild', ko.virtualElements.firstChild);     // firstChild is not minified
ko.exportSymbol('virtualElements.insertAfter', ko.virtualElements.insertAfter);
//ko.exportSymbol('virtualElements.nextSibling', ko.virtualElements.nextSibling);   // nextSibling is not minified
ko.exportSymbol('virtualElements.prepend', ko.virtualElements.prepend);
ko.exportSymbol('virtualElements.setDomNodeChildren', ko.virtualElements.setDomNodeChildren);
(function() {
    var defaultBindingAttributeName = "data-bind";

    ko.bindingProvider = function() {
        this.bindingCache = {};
    };

    ko.utils.extend(ko.bindingProvider.prototype, {
        'nodeHasBindings': function(node) {
            switch (node.nodeType) {
                case 1: // Element
                    return node.getAttribute(defaultBindingAttributeName) != null
                        || ko.components['getComponentNameForNode'](node);
                case 8: // Comment node
                    return ko.virtualElements.hasBindingValue(node);
                default: return false;
            }
        },

        'getBindings': function(node, bindingContext) {
            var bindingsString = this['getBindingsString'](node, bindingContext),
                parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;
            return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ false);
        },

        'getBindingAccessors': function(node, bindingContext) {
            var bindingsString = this['getBindingsString'](node, bindingContext),
                parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;
            return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ true);
        },

        // The following function is only used internally by this default provider.
        // It's not part of the interface definition for a general binding provider.
        'getBindingsString': function(node, bindingContext) {
            switch (node.nodeType) {
                case 1: return node.getAttribute(defaultBindingAttributeName);   // Element
                case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node
                default: return null;
            }
        },

        // The following function is only used internally by this default provider.
        // It's not part of the interface definition for a general binding provider.
        'parseBindingsString': function(bindingsString, bindingContext, node, options) {
            try {
                var bindingFunction = createBindingsStringEvaluatorViaCache(bindingsString, this.bindingCache, options);
                return bindingFunction(bindingContext, node);
            } catch (ex) {
                ex.message = "Unable to parse bindings.\nBindings value: " + bindingsString + "\nMessage: " + ex.message;
                throw ex;
            }
        }
    });

    ko.bindingProvider['instance'] = new ko.bindingProvider();

    function createBindingsStringEvaluatorViaCache(bindingsString, cache, options) {
        var cacheKey = bindingsString + (options && options['valueAccessors'] || '');
        return cache[cacheKey]
            || (cache[cacheKey] = createBindingsStringEvaluator(bindingsString, options));
    }

    function createBindingsStringEvaluator(bindingsString, options) {
        // Build the source for a function that evaluates "expression"
        // For each scope variable, add an extra level of "with" nesting
        // Example result: with(sc1) { with(sc0) { return (expression) } }
        var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString, options),
            functionBody = "with($context){with($data||{}){return{" + rewrittenBindings + "}}}";
        return new Function("$context", "$element", functionBody);
    }
})();

ko.exportSymbol('bindingProvider', ko.bindingProvider);
(function () {
    ko.bindingHandlers = {};

    // The following element types will not be recursed into during binding. In the future, we
    // may consider adding <template> to this list, because such elements' contents are always
    // intended to be bound in a different context from where they appear in the document.
    var bindingDoesNotRecurseIntoElementTypes = {
        // Don't want bindings that operate on text nodes to mutate <script> contents,
        // because it's unexpected and a potential XSS issue
        'script': true
    };

    // Use an overridable method for retrieving binding handlers so that a plugins may support dynamically created handlers
    ko['getBindingHandler'] = function(bindingKey) {
        return ko.bindingHandlers[bindingKey];
    };

    // The ko.bindingContext constructor is only called directly to create the root context. For child
    // contexts, use bindingContext.createChildContext or bindingContext.extend.
    ko.bindingContext = function(dataItemOrAccessor, parentContext, dataItemAlias, extendCallback) {

        // The binding context object includes static properties for the current, parent, and root view models.
        // If a view model is actually stored in an observable, the corresponding binding context object, and
        // any child contexts, must be updated when the view model is changed.
        function updateContext() {
            // Most of the time, the context will directly get a view model object, but if a function is given,
            // we call the function to retrieve the view model. If the function accesses any obsevables or returns
            // an observable, the dependency is tracked, and those observables can later cause the binding
            // context to be updated.
            var dataItemOrObservable = isFunc ? dataItemOrAccessor() : dataItemOrAccessor,
                dataItem = ko.utils.unwrapObservable(dataItemOrObservable);

            if (parentContext) {
                // When a "parent" context is given, register a dependency on the parent context. Thus whenever the
                // parent context is updated, this context will also be updated.
                if (parentContext._subscribable)
                    parentContext._subscribable();

                // Copy $root and any custom properties from the parent context
                ko.utils.extend(self, parentContext);

                // Because the above copy overwrites our own properties, we need to reset them.
                // During the first execution, "subscribable" isn't set, so don't bother doing the update then.
                if (subscribable) {
                    self._subscribable = subscribable;
                }
            } else {
                self['$parents'] = [];
                self['$root'] = dataItem;

                // Export 'ko' in the binding context so it will be available in bindings and templates
                // even if 'ko' isn't exported as a global, such as when using an AMD loader.
                // See https://github.com/SteveSanderson/knockout/issues/490
                self['ko'] = ko;
            }
            self['$rawData'] = dataItemOrObservable;
            self['$data'] = dataItem;
            if (dataItemAlias)
                self[dataItemAlias] = dataItem;

            // The extendCallback function is provided when creating a child context or extending a context.
            // It handles the specific actions needed to finish setting up the binding context. Actions in this
            // function could also add dependencies to this binding context.
            if (extendCallback)
                extendCallback(self, parentContext, dataItem);

            return self['$data'];
        }
        function disposeWhen() {
            return nodes && !ko.utils.anyDomNodeIsAttachedToDocument(nodes);
        }

        var self = this,
            isFunc = typeof(dataItemOrAccessor) == "function" && !ko.isObservable(dataItemOrAccessor),
            nodes,
            subscribable = ko.dependentObservable(updateContext, null, { disposeWhen: disposeWhen, disposeWhenNodeIsRemoved: true });

        // At this point, the binding context has been initialized, and the "subscribable" computed observable is
        // subscribed to any observables that were accessed in the process. If there is nothing to track, the
        // computed will be inactive, and we can safely throw it away. If it's active, the computed is stored in
        // the context object.
        if (subscribable.isActive()) {
            self._subscribable = subscribable;

            // Always notify because even if the model ($data) hasn't changed, other context properties might have changed
            subscribable['equalityComparer'] = null;

            // We need to be able to dispose of this computed observable when it's no longer needed. This would be
            // easy if we had a single node to watch, but binding contexts can be used by many different nodes, and
            // we cannot assume that those nodes have any relation to each other. So instead we track any node that
            // the context is attached to, and dispose the computed when all of those nodes have been cleaned.

            // Add properties to *subscribable* instead of *self* because any properties added to *self* may be overwritten on updates
            nodes = [];
            subscribable._addNode = function(node) {
                nodes.push(node);
                ko.utils.domNodeDisposal.addDisposeCallback(node, function(node) {
                    ko.utils.arrayRemoveItem(nodes, node);
                    if (!nodes.length) {
                        subscribable.dispose();
                        self._subscribable = subscribable = undefined;
                    }
                });
            };
        }
    }

    // Extend the binding context hierarchy with a new view model object. If the parent context is watching
    // any obsevables, the new child context will automatically get a dependency on the parent context.
    // But this does not mean that the $data value of the child context will also get updated. If the child
    // view model also depends on the parent view model, you must provide a function that returns the correct
    // view model on each update.
    ko.bindingContext.prototype['createChildContext'] = function (dataItemOrAccessor, dataItemAlias, extendCallback) {
        return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, function(self, parentContext) {
            // Extend the context hierarchy by setting the appropriate pointers
            self['$parentContext'] = parentContext;
            self['$parent'] = parentContext['$data'];
            self['$parents'] = (parentContext['$parents'] || []).slice(0);
            self['$parents'].unshift(self['$parent']);
            if (extendCallback)
                extendCallback(self);
        });
    };

    // Extend the binding context with new custom properties. This doesn't change the context hierarchy.
    // Similarly to "child" contexts, provide a function here to make sure that the correct values are set
    // when an observable view model is updated.
    ko.bindingContext.prototype['extend'] = function(properties) {
        // If the parent context references an observable view model, "_subscribable" will always be the
        // latest view model object. If not, "_subscribable" isn't set, and we can use the static "$data" value.
        return new ko.bindingContext(this._subscribable || this['$data'], this, null, function(self, parentContext) {
            // This "child" context doesn't directly track a parent observable view model,
            // so we need to manually set the $rawData value to match the parent.
            self['$rawData'] = parentContext['$rawData'];
            ko.utils.extend(self, typeof(properties) == "function" ? properties() : properties);
        });
    };

    // Returns the valueAccesor function for a binding value
    function makeValueAccessor(value) {
        return function() {
            return value;
        };
    }

    // Returns the value of a valueAccessor function
    function evaluateValueAccessor(valueAccessor) {
        return valueAccessor();
    }

    // Given a function that returns bindings, create and return a new object that contains
    // binding value-accessors functions. Each accessor function calls the original function
    // so that it always gets the latest value and all dependencies are captured. This is used
    // by ko.applyBindingsToNode and getBindingsAndMakeAccessors.
    function makeAccessorsFromFunction(callback) {
        return ko.utils.objectMap(ko.dependencyDetection.ignore(callback), function(value, key) {
            return function() {
                return callback()[key];
            };
        });
    }

    // Given a bindings function or object, create and return a new object that contains
    // binding value-accessors functions. This is used by ko.applyBindingsToNode.
    function makeBindingAccessors(bindings, context, node) {
        if (typeof bindings === 'function') {
            return makeAccessorsFromFunction(bindings.bind(null, context, node));
        } else {
            return ko.utils.objectMap(bindings, makeValueAccessor);
        }
    }

    // This function is used if the binding provider doesn't include a getBindingAccessors function.
    // It must be called with 'this' set to the provider instance.
    function getBindingsAndMakeAccessors(node, context) {
        return makeAccessorsFromFunction(this['getBindings'].bind(this, node, context));
    }

    function validateThatBindingIsAllowedForVirtualElements(bindingName) {
        var validator = ko.virtualElements.allowedBindings[bindingName];
        if (!validator)
            throw new Error("The binding '" + bindingName + "' cannot be used with virtual elements")
    }

    function applyBindingsToDescendantsInternal (bindingContext, elementOrVirtualElement, bindingContextsMayDifferFromDomParentElement) {
        var currentChild,
            nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement),
            provider = ko.bindingProvider['instance'],
            preprocessNode = provider['preprocessNode'];

        // Preprocessing allows a binding provider to mutate a node before bindings are applied to it. For example it's
        // possible to insert new siblings after it, and/or replace the node with a different one. This can be used to
        // implement custom binding syntaxes, such as {{ value }} for string interpolation, or custom element types that
        // trigger insertion of <template> contents at that point in the document.
        if (preprocessNode) {
            while (currentChild = nextInQueue) {
                nextInQueue = ko.virtualElements.nextSibling(currentChild);
                preprocessNode.call(provider, currentChild);
            }
            // Reset nextInQueue for the next loop
            nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement);
        }

        while (currentChild = nextInQueue) {
            // Keep a record of the next child *before* applying bindings, in case the binding removes the current child from its position
            nextInQueue = ko.virtualElements.nextSibling(currentChild);
            applyBindingsToNodeAndDescendantsInternal(bindingContext, currentChild, bindingContextsMayDifferFromDomParentElement);
        }
    }

    function applyBindingsToNodeAndDescendantsInternal (bindingContext, nodeVerified, bindingContextMayDifferFromDomParentElement) {
        var shouldBindDescendants = true;

        // Perf optimisation: Apply bindings only if...
        // (1) We need to store the binding context on this node (because it may differ from the DOM parent node's binding context)
        //     Note that we can't store binding contexts on non-elements (e.g., text nodes), as IE doesn't allow expando properties for those
        // (2) It might have bindings (e.g., it has a data-bind attribute, or it's a marker for a containerless template)
        var isElement = (nodeVerified.nodeType === 1);
        if (isElement) // Workaround IE <= 8 HTML parsing weirdness
            ko.virtualElements.normaliseVirtualElementDomStructure(nodeVerified);

        var shouldApplyBindings = (isElement && bindingContextMayDifferFromDomParentElement)             // Case (1)
                               || ko.bindingProvider['instance']['nodeHasBindings'](nodeVerified);       // Case (2)
        if (shouldApplyBindings)
            shouldBindDescendants = applyBindingsToNodeInternal(nodeVerified, null, bindingContext, bindingContextMayDifferFromDomParentElement)['shouldBindDescendants'];

        if (shouldBindDescendants && !bindingDoesNotRecurseIntoElementTypes[ko.utils.tagNameLower(nodeVerified)]) {
            // We're recursing automatically into (real or virtual) child nodes without changing binding contexts. So,
            //  * For children of a *real* element, the binding context is certainly the same as on their DOM .parentNode,
            //    hence bindingContextsMayDifferFromDomParentElement is false
            //  * For children of a *virtual* element, we can't be sure. Evaluating .parentNode on those children may
            //    skip over any number of intermediate virtual elements, any of which might define a custom binding context,
            //    hence bindingContextsMayDifferFromDomParentElement is true
            applyBindingsToDescendantsInternal(bindingContext, nodeVerified, /* bindingContextsMayDifferFromDomParentElement: */ !isElement);
        }
    }

    var boundElementDomDataKey = ko.utils.domData.nextKey();


    function topologicalSortBindings(bindings) {
        // Depth-first sort
        var result = [],                // The list of key/handler pairs that we will return
            bindingsConsidered = {},    // A temporary record of which bindings are already in 'result'
            cyclicDependencyStack = []; // Keeps track of a depth-search so that, if there's a cycle, we know which bindings caused it
        ko.utils.objectForEach(bindings, function pushBinding(bindingKey) {
            if (!bindingsConsidered[bindingKey]) {
                var binding = ko['getBindingHandler'](bindingKey);
                if (binding) {
                    // First add dependencies (if any) of the current binding
                    if (binding['after']) {
                        cyclicDependencyStack.push(bindingKey);
                        ko.utils.arrayForEach(binding['after'], function(bindingDependencyKey) {
                            if (bindings[bindingDependencyKey]) {
                                if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {
                                    throw Error("Cannot combine the following bindings, because they have a cyclic dependency: " + cyclicDependencyStack.join(", "));
                                } else {
                                    pushBinding(bindingDependencyKey);
                                }
                            }
                        });
                        cyclicDependencyStack.length--;
                    }
                    // Next add the current binding
                    result.push({ key: bindingKey, handler: binding });
                }
                bindingsConsidered[bindingKey] = true;
            }
        });

        return result;
    }

    function applyBindingsToNodeInternal(node, sourceBindings, bindingContext, bindingContextMayDifferFromDomParentElement) {
        // Prevent multiple applyBindings calls for the same node, except when a binding value is specified
        var alreadyBound = ko.utils.domData.get(node, boundElementDomDataKey);
        if (!sourceBindings) {
            if (alreadyBound) {
                throw Error("You cannot apply bindings multiple times to the same element.");
            }
            ko.utils.domData.set(node, boundElementDomDataKey, true);
        }

        // Optimization: Don't store the binding context on this node if it's definitely the same as on node.parentNode, because
        // we can easily recover it just by scanning up the node's ancestors in the DOM
        // (note: here, parent node means "real DOM parent" not "virtual parent", as there's no O(1) way to find the virtual parent)
        if (!alreadyBound && bindingContextMayDifferFromDomParentElement)
            ko.storedBindingContextForNode(node, bindingContext);

        // Use bindings if given, otherwise fall back on asking the bindings provider to give us some bindings
        var bindings;
        if (sourceBindings && typeof sourceBindings !== 'function') {
            bindings = sourceBindings;
        } else {
            var provider = ko.bindingProvider['instance'],
                getBindings = provider['getBindingAccessors'] || getBindingsAndMakeAccessors;

            // Get the binding from the provider within a computed observable so that we can update the bindings whenever
            // the binding context is updated or if the binding provider accesses observables.
            var bindingsUpdater = ko.dependentObservable(
                function() {
                    bindings = sourceBindings ? sourceBindings(bindingContext, node) : getBindings.call(provider, node, bindingContext);
                    // Register a dependency on the binding context to support obsevable view models.
                    if (bindings && bindingContext._subscribable)
                        bindingContext._subscribable();
                    return bindings;
                },
                null, { disposeWhenNodeIsRemoved: node }
            );

            if (!bindings || !bindingsUpdater.isActive())
                bindingsUpdater = null;
        }

        var bindingHandlerThatControlsDescendantBindings;
        if (bindings) {
            // Return the value accessor for a given binding. When bindings are static (won't be updated because of a binding
            // context update), just return the value accessor from the binding. Otherwise, return a function that always gets
            // the latest binding value and registers a dependency on the binding updater.
            var getValueAccessor = bindingsUpdater
                ? function(bindingKey) {
                    return function() {
                        return evaluateValueAccessor(bindingsUpdater()[bindingKey]);
                    };
                } : function(bindingKey) {
                    return bindings[bindingKey];
                };

            // Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated
            function allBindings() {
                return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor);
            }
            // The following is the 3.x allBindings API
            allBindings['get'] = function(key) {
                return bindings[key] && evaluateValueAccessor(getValueAccessor(key));
            };
            allBindings['has'] = function(key) {
                return key in bindings;
            };

            // First put the bindings into the right order
            var orderedBindings = topologicalSortBindings(bindings);

            // Go through the sorted bindings, calling init and update for each
            ko.utils.arrayForEach(orderedBindings, function(bindingKeyAndHandler) {
                // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,
                // so bindingKeyAndHandler.handler will always be nonnull.
                var handlerInitFn = bindingKeyAndHandler.handler["init"],
                    handlerUpdateFn = bindingKeyAndHandler.handler["update"],
                    bindingKey = bindingKeyAndHandler.key;

                if (node.nodeType === 8) {
                    validateThatBindingIsAllowedForVirtualElements(bindingKey);
                }

                try {
                    // Run init, ignoring any dependencies
                    if (typeof handlerInitFn == "function") {
                        ko.dependencyDetection.ignore(function() {
                            var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);

                            // If this binding handler claims to control descendant bindings, make a note of this
                            if (initResult && initResult['controlsDescendantBindings']) {
                                if (bindingHandlerThatControlsDescendantBindings !== undefined)
                                    throw new Error("Multiple bindings (" + bindingHandlerThatControlsDescendantBindings + " and " + bindingKey + ") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.");
                                bindingHandlerThatControlsDescendantBindings = bindingKey;
                            }
                        });
                    }

                    // Run update in its own computed wrapper
                    if (typeof handlerUpdateFn == "function") {
                        ko.dependentObservable(
                            function() {
                                handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);
                            },
                            null,
                            { disposeWhenNodeIsRemoved: node }
                        );
                    }
                } catch (ex) {
                    ex.message = "Unable to process binding \"" + bindingKey + ": " + bindings[bindingKey] + "\"\nMessage: " + ex.message;
                    throw ex;
                }
            });
        }

        return {
            'shouldBindDescendants': bindingHandlerThatControlsDescendantBindings === undefined
        };
    };

    var storedBindingContextDomDataKey = ko.utils.domData.nextKey();
    ko.storedBindingContextForNode = function (node, bindingContext) {
        if (arguments.length == 2) {
            ko.utils.domData.set(node, storedBindingContextDomDataKey, bindingContext);
            if (bindingContext._subscribable)
                bindingContext._subscribable._addNode(node);
        } else {
            return ko.utils.domData.get(node, storedBindingContextDomDataKey);
        }
    }

    function getBindingContext(viewModelOrBindingContext) {
        return viewModelOrBindingContext && (viewModelOrBindingContext instanceof ko.bindingContext)
            ? viewModelOrBindingContext
            : new ko.bindingContext(viewModelOrBindingContext);
    }

    ko.applyBindingAccessorsToNode = function (node, bindings, viewModelOrBindingContext) {
        if (node.nodeType === 1) // If it's an element, workaround IE <= 8 HTML parsing weirdness
            ko.virtualElements.normaliseVirtualElementDomStructure(node);
        return applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext), true);
    };

    ko.applyBindingsToNode = function (node, bindings, viewModelOrBindingContext) {
        var context = getBindingContext(viewModelOrBindingContext);
        return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context);
    };

    ko.applyBindingsToDescendants = function(viewModelOrBindingContext, rootNode) {
        if (rootNode.nodeType === 1 || rootNode.nodeType === 8)
            applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
    };

    ko.applyBindings = function (viewModelOrBindingContext, rootNode) {
        // If jQuery is loaded after Knockout, we won't initially have access to it. So save it here.
        if (!jQueryInstance && window['jQuery']) {
            jQueryInstance = window['jQuery'];
        }

        if (rootNode && (rootNode.nodeType !== 1) && (rootNode.nodeType !== 8))
            throw new Error("ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node");
        rootNode = rootNode || window.document.body; // Make "rootNode" parameter optional

        applyBindingsToNodeAndDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
    };

    // Retrieving binding context from arbitrary nodes
    ko.contextFor = function(node) {
        // We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them)
        switch (node.nodeType) {
            case 1:
            case 8:
                var context = ko.storedBindingContextForNode(node);
                if (context) return context;
                if (node.parentNode) return ko.contextFor(node.parentNode);
                break;
        }
        return undefined;
    };
    ko.dataFor = function(node) {
        var context = ko.contextFor(node);
        return context ? context['$data'] : undefined;
    };

    ko.exportSymbol('bindingHandlers', ko.bindingHandlers);
    ko.exportSymbol('applyBindings', ko.applyBindings);
    ko.exportSymbol('applyBindingsToDescendants', ko.applyBindingsToDescendants);
    ko.exportSymbol('applyBindingAccessorsToNode', ko.applyBindingAccessorsToNode);
    ko.exportSymbol('applyBindingsToNode', ko.applyBindingsToNode);
    ko.exportSymbol('contextFor', ko.contextFor);
    ko.exportSymbol('dataFor', ko.dataFor);
})();
(function(undefined) {
    var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight
        loadedDefinitionsCache = {};    // Tracks component loads that have already completed

    ko.components = {
        get: function(componentName, callback) {
            var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName);
            if (cachedDefinition) {
                // It's already loaded and cached. Reuse the same definition object.
                // Note that for API consistency, even cache hits complete asynchronously.
                setTimeout(function() { callback(cachedDefinition) }, 0);
            } else {
                // Join the loading process that is already underway, or start a new one.
                loadComponentAndNotify(componentName, callback);
            }
        },

        clearCachedDefinition: function(componentName) {
            delete loadedDefinitionsCache[componentName];
        },

        _getFirstResultFromLoaders: getFirstResultFromLoaders
    };

    function getObjectOwnProperty(obj, propName) {
        return obj.hasOwnProperty(propName) ? obj[propName] : undefined;
    }

    function loadComponentAndNotify(componentName, callback) {
        var subscribable = getObjectOwnProperty(loadingSubscribablesCache, componentName),
            completedAsync;
        if (!subscribable) {
            // It's not started loading yet. Start loading, and when it's done, move it to loadedDefinitionsCache.
            subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable();
            beginLoadingComponent(componentName, function(definition) {
                loadedDefinitionsCache[componentName] = definition;
                delete loadingSubscribablesCache[componentName];

                // For API consistency, all loads complete asynchronously. However we want to avoid
                // adding an extra setTimeout if it's unnecessary (i.e., the completion is already
                // async) since setTimeout(..., 0) still takes about 16ms or more on most browsers.
                if (completedAsync) {
                    subscribable['notifySubscribers'](definition);
                } else {
                    setTimeout(function() {
                        subscribable['notifySubscribers'](definition);
                    }, 0);
                }
            });
            completedAsync = true;
        }
        subscribable.subscribe(callback);
    }

    function beginLoadingComponent(componentName, callback) {
        getFirstResultFromLoaders('getConfig', [componentName], function(config) {
            if (config) {
                // We have a config, so now load its definition
                getFirstResultFromLoaders('loadComponent', [componentName, config], function(definition) {
                    callback(definition);
                });
            } else {
                // The component has no config - it's unknown to all the loaders.
                // Note that this is not an error (e.g., a module loading error) - that would abort the
                // process and this callback would not run. For this callback to run, all loaders must
                // have confirmed they don't know about this component.
                callback(null);
            }
        });
    }

    function getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders) {
        // On the first call in the stack, start with the full set of loaders
        if (!candidateLoaders) {
            candidateLoaders = ko.components['loaders'].slice(0); // Use a copy, because we'll be mutating this array
        }

        // Try the next candidate
        var currentCandidateLoader = candidateLoaders.shift();
        if (currentCandidateLoader) {
            var methodInstance = currentCandidateLoader[methodName];
            if (methodInstance) {
                var wasAborted = false,
                    synchronousReturnValue = methodInstance.apply(currentCandidateLoader, argsExceptCallback.concat(function(result) {
                        if (wasAborted) {
                            callback(null);
                        } else if (result !== null) {
                            // This candidate returned a value. Use it.
                            callback(result);
                        } else {
                            // Try the next candidate
                            getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
                        }
                    }));

                // Currently, loaders may not return anything synchronously. This leaves open the possibility
                // that we'll extend the API to support synchronous return values in the future. It won't be
                // a breaking change, because currently no loader is allowed to return anything except undefined.
                if (synchronousReturnValue !== undefined) {
                    wasAborted = true;

                    // Method to suppress exceptions will remain undocumented. This is only to keep
                    // KO's specs running tidily, since we can observe the loading got aborted without
                    // having exceptions cluttering up the console too.
                    if (!currentCandidateLoader['suppressLoaderExceptions']) {
                        throw new Error('Component loaders must supply values by invoking the callback, not by returning values synchronously.');
                    }
                }
            } else {
                // This candidate doesn't have the relevant handler. Synchronously move on to the next one.
                getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
            }
        } else {
            // No candidates returned a value
            callback(null);
        }
    }

    // Reference the loaders via string name so it's possible for developers
    // to replace the whole array by assigning to ko.components.loaders
    ko.components['loaders'] = [];

    ko.exportSymbol('components', ko.components);
    ko.exportSymbol('components.get', ko.components.get);
    ko.exportSymbol('components.clearCachedDefinition', ko.components.clearCachedDefinition);
})();
(function(undefined) {

    // The default loader is responsible for two things:
    // 1. Maintaining the default in-memory registry of component configuration objects
    //    (i.e., the thing you're writing to when you call ko.components.register(someName, ...))
    // 2. Answering requests for components by fetching configuration objects
    //    from that default in-memory registry and resolving them into standard
    //    component definition objects (of the form { createViewModel: ..., template: ... })
    // Custom loaders may override either of these facilities, i.e.,
    // 1. To supply configuration objects from some other source (e.g., conventions)
    // 2. Or, to resolve configuration objects by loading viewmodels/templates via arbitrary logic.

    var defaultConfigRegistry = {};

    ko.components.register = function(componentName, config) {
        if (!config) {
            throw new Error('Invalid configuration for ' + componentName);
        }

        if (ko.components.isRegistered(componentName)) {
            throw new Error('Component ' + componentName + ' is already registered');
        }

        defaultConfigRegistry[componentName] = config;
    }

    ko.components.isRegistered = function(componentName) {
        return componentName in defaultConfigRegistry;
    }

    ko.components.unregister = function(componentName) {
        delete defaultConfigRegistry[componentName];
        ko.components.clearCachedDefinition(componentName);
    }

    ko.components.defaultLoader = {
        'getConfig': function(componentName, callback) {
            var result = defaultConfigRegistry.hasOwnProperty(componentName)
                ? defaultConfigRegistry[componentName]
                : null;
            callback(result);
        },

        'loadComponent': function(componentName, config, callback) {
            var errorCallback = makeErrorCallback(componentName);
            possiblyGetConfigFromAmd(errorCallback, config, function(loadedConfig) {
                resolveConfig(componentName, errorCallback, loadedConfig, callback);
            });
        },

        'loadTemplate': function(componentName, templateConfig, callback) {
            resolveTemplate(makeErrorCallback(componentName), templateConfig, callback);
        },

        'loadViewModel': function(componentName, viewModelConfig, callback) {
            resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback);
        }
    };

    var createViewModelKey = 'createViewModel';

    // Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it
    // into the standard component definition format:
    //    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.
    // Since both template and viewModel may need to be resolved asynchronously, both tasks are performed
    // in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,
    // so this is implemented manually below.
    function resolveConfig(componentName, errorCallback, config, callback) {
        var result = {},
            makeCallBackWhenZero = 2,
            tryIssueCallback = function() {
                if (--makeCallBackWhenZero === 0) {
                    callback(result);
                }
            },
            templateConfig = config['template'],
            viewModelConfig = config['viewModel'];

        if (templateConfig) {
            possiblyGetConfigFromAmd(errorCallback, templateConfig, function(loadedConfig) {
                ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], function(resolvedTemplate) {
                    result['template'] = resolvedTemplate;
                    tryIssueCallback();
                });
            });
        } else {
            tryIssueCallback();
        }

        if (viewModelConfig) {
            possiblyGetConfigFromAmd(errorCallback, viewModelConfig, function(loadedConfig) {
                ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], function(resolvedViewModel) {
                    result[createViewModelKey] = resolvedViewModel;
                    tryIssueCallback();
                });
            });
        } else {
            tryIssueCallback();
        }
    }

    function resolveTemplate(errorCallback, templateConfig, callback) {
        if (typeof templateConfig === 'string') {
            // Markup - parse it
            callback(ko.utils.parseHtmlFragment(templateConfig));
        } else if (templateConfig instanceof Array) {
            // Assume already an array of DOM nodes - pass through unchanged
            callback(templateConfig);
        } else if (isDocumentFragment(templateConfig)) {
            // Document fragment - use its child nodes
            callback(ko.utils.makeArray(templateConfig.childNodes));
        } else if (templateConfig['element']) {
            var element = templateConfig['element'];
            if (isDomElement(element)) {
                // Element instance - copy its child nodes
                callback(cloneNodesFromTemplateSourceElement(element));
            } else if (typeof element === 'string') {
                // Element ID - find it, then copy its child nodes
                var elemInstance = document.getElementById(element);
                if (elemInstance) {
                    callback(cloneNodesFromTemplateSourceElement(elemInstance));
                } else {
                    errorCallback('Cannot find element with ID ' + element);
                }
            } else {
                errorCallback('Unknown element type: ' + element);
            }
        } else {
            errorCallback('Unknown template value: ' + templateConfig);
        }
    }

    function resolveViewModel(errorCallback, viewModelConfig, callback) {
        if (typeof viewModelConfig === 'function') {
            // Constructor - convert to standard factory function format
            // By design, this does *not* supply componentInfo to the constructor, as the intent is that
            // componentInfo contains non-viewmodel data (e.g., the component's element) that should only
            // be used in factory functions, not viewmodel constructors.
            callback(function (params /*, componentInfo */) {
                return new viewModelConfig(params);
            });
        } else if (typeof viewModelConfig[createViewModelKey] === 'function') {
            // Already a factory function - use it as-is
            callback(viewModelConfig[createViewModelKey]);
        } else if ('instance' in viewModelConfig) {
            // Fixed object instance - promote to createViewModel format for API consistency
            var fixedInstance = viewModelConfig['instance'];
            callback(function (params, componentInfo) {
                return fixedInstance;
            });
        } else if ('viewModel' in viewModelConfig) {
            // Resolved AMD module whose value is of the form { viewModel: ... }
            resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback);
        } else {
            errorCallback('Unknown viewModel value: ' + viewModelConfig);
        }
    }

    function cloneNodesFromTemplateSourceElement(elemInstance) {
        switch (ko.utils.tagNameLower(elemInstance)) {
            case 'script':
                return ko.utils.parseHtmlFragment(elemInstance.text);
            case 'textarea':
                return ko.utils.parseHtmlFragment(elemInstance.value);
            case 'template':
                // For browsers with proper <template> element support (i.e., where the .content property
                // gives a document fragment), use that document fragment.
                if (isDocumentFragment(elemInstance.content)) {
                    return ko.utils.cloneNodes(elemInstance.content.childNodes);
                }
        }

        // Regular elements such as <div>, and <template> elements on old browsers that don't really
        // understand <template> and just treat it as a regular container
        return ko.utils.cloneNodes(elemInstance.childNodes);
    }

    function isDomElement(obj) {
        if (window['HTMLElement']) {
            return obj instanceof HTMLElement;
        } else {
            return obj && obj.tagName && obj.nodeType === 1;
        }
    }

    function isDocumentFragment(obj) {
        if (window['DocumentFragment']) {
            return obj instanceof DocumentFragment;
        } else {
            return obj && obj.nodeType === 11;
        }
    }

    function possiblyGetConfigFromAmd(errorCallback, config, callback) {
        if (typeof config['require'] === 'string') {
            // The config is the value of an AMD module
            if (require || window['require']) {
                (require || window['require'])([config['require']], callback);
            } else {
                errorCallback('Uses require, but no AMD loader is present');
            }
        } else {
            callback(config);
        }
    }

    function makeErrorCallback(componentName) {
        return function (message) {
            throw new Error('Component \'' + componentName + '\': ' + message);
        };
    }

    ko.exportSymbol('components.register', ko.components.register);
    ko.exportSymbol('components.isRegistered', ko.components.isRegistered);
    ko.exportSymbol('components.unregister', ko.components.unregister);

    // Expose the default loader so that developers can directly ask it for configuration
    // or to resolve configuration
    ko.exportSymbol('components.defaultLoader', ko.components.defaultLoader);

    // By default, the default loader is the only registered component loader
    ko.components['loaders'].push(ko.components.defaultLoader);

    // Privately expose the underlying config registry for use in old-IE shim
    ko.components._allRegisteredComponents = defaultConfigRegistry;
})();
(function (undefined) {
    // Overridable API for determining which component name applies to a given node. By overriding this,
    // you can for example map specific tagNames to components that are not preregistered.
    ko.components['getComponentNameForNode'] = function(node) {
        var tagNameLower = ko.utils.tagNameLower(node);
        return ko.components.isRegistered(tagNameLower) && tagNameLower;
    };

    ko.components.addBindingsForCustomElement = function(allBindings, node, bindingContext, valueAccessors) {
        // Determine if it's really a custom element matching a component
        if (node.nodeType === 1) {
            var componentName = ko.components['getComponentNameForNode'](node);
            if (componentName) {
                // It does represent a component, so add a component binding for it
                allBindings = allBindings || {};

                if (allBindings['component']) {
                    // Avoid silently overwriting some other 'component' binding that may already be on the element
                    throw new Error('Cannot use the "component" binding on a custom element matching a component');
                }

                var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) };

                allBindings['component'] = valueAccessors
                    ? function() { return componentBindingValue; }
                    : componentBindingValue;
            }
        }

        return allBindings;
    }

    var nativeBindingProviderInstance = new ko.bindingProvider();

    function getComponentParamsFromCustomElement(elem, bindingContext) {
        var paramsAttribute = elem.getAttribute('params');

        if (paramsAttribute) {
            var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }),
                rawParamComputedValues = ko.utils.objectMap(params, function(paramValue, paramName) {
                    return ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem });
                }),
                result = ko.utils.objectMap(rawParamComputedValues, function(paramValueComputed, paramName) {
                    // Does the evaluation of the parameter value unwrap any observables?
                    if (!paramValueComputed.isActive()) {
                        // No it doesn't, so there's no need for any computed wrapper. Just pass through the supplied value directly.
                        // Example: "someVal: firstName, age: 123" (whether or not firstName is an observable/computed)
                        return paramValueComputed.peek();
                    } else {
                        // Yes it does. Supply a computed property that unwraps both the outer (binding expression)
                        // level of observability, and any inner (resulting model value) level of observability.
                        // This means the component doesn't have to worry about multiple unwrapping.
                        return ko.computed(function() {
                            return ko.utils.unwrapObservable(paramValueComputed());
                        }, null, { disposeWhenNodeIsRemoved: elem });
                    }
                });

            // Give access to the raw computeds, as long as that wouldn't overwrite any custom param also called '$raw'
            // This is in case the developer wants to react to outer (binding) observability separately from inner
            // (model value) observability, or in case the model value observable has subobservables.
            if (!result.hasOwnProperty('$raw')) {
                result['$raw'] = rawParamComputedValues;
            }

            return result;
        } else {
            // For consistency, absence of a "params" attribute is treated the same as the presence of
            // any empty one. Otherwise component viewmodels need special code to check whether or not
            // 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.
            return { '$raw': {} };
        }
    }

    // --------------------------------------------------------------------------------
    // Compatibility code for older (pre-HTML5) IE browsers

    if (ko.utils.ieVersion < 9) {
        // Whenever you preregister a component, enable it as a custom element in the current document
        ko.components['register'] = (function(originalFunction) {
            return function(componentName) {
                document.createElement(componentName); // Allows IE<9 to parse markup containing the custom element
                return originalFunction.apply(this, arguments);
            }
        })(ko.components['register']);

        // Whenever you create a document fragment, enable all preregistered component names as custom elements
        // This is needed to make innerShiv/jQuery HTML parsing correctly handle the custom elements
        document.createDocumentFragment = (function(originalFunction) {
            return function() {
                var newDocFrag = originalFunction(),
                    allComponents = ko.components._allRegisteredComponents;
                for (var componentName in allComponents) {
                    if (allComponents.hasOwnProperty(componentName)) {
                        newDocFrag.createElement(componentName);
                    }
                }
                return newDocFrag;
            };
        })(document.createDocumentFragment);
    }
})();(function(undefined) {

    var componentLoadingOperationUniqueId = 0;

    ko.bindingHandlers['component'] = {
        'init': function(element, valueAccessor, ignored1, ignored2, bindingContext) {
            var currentViewModel,
                currentLoadingOperationId,
                disposeAssociatedComponentViewModel = function () {
                    var currentViewModelDispose = currentViewModel && currentViewModel['dispose'];
                    if (typeof currentViewModelDispose === 'function') {
                        currentViewModelDispose.call(currentViewModel);
                    }

                    // Any in-flight loading operation is no longer relevant, so make sure we ignore its completion
                    currentLoadingOperationId = null;
                };

            ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel);

            ko.computed(function () {
                var value = ko.utils.unwrapObservable(valueAccessor()),
                    componentName, componentParams;

                if (typeof value === 'string') {
                    componentName = value;
                } else {
                    componentName = ko.utils.unwrapObservable(value['name']);
                    componentParams = ko.utils.unwrapObservable(value['params']);
                }

                if (!componentName) {
                    throw new Error('No component name specified');
                }

                var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId;
                ko.components.get(componentName, function(componentDefinition) {
                    // If this is not the current load operation for this element, ignore it.
                    if (currentLoadingOperationId !== loadingOperationId) {
                        return;
                    }

                    // Clean up previous state
                    disposeAssociatedComponentViewModel();

                    // Instantiate and bind new component. Implicitly this cleans any old DOM nodes.
                    if (!componentDefinition) {
                        throw new Error('Unknown component \'' + componentName + '\'');
                    }
                    cloneTemplateIntoElement(componentName, componentDefinition, element);
                    var componentViewModel = createViewModel(componentDefinition, element, componentParams),
                        childBindingContext = bindingContext['createChildContext'](componentViewModel);
                    currentViewModel = componentViewModel;
                    ko.applyBindingsToDescendants(childBindingContext, element);
                });
            }, null, { disposeWhenNodeIsRemoved: element });

            return { 'controlsDescendantBindings': true };
        }
    };

    ko.virtualElements.allowedBindings['component'] = true;

    function cloneTemplateIntoElement(componentName, componentDefinition, element) {
        var template = componentDefinition['template'];
        if (!template) {
            throw new Error('Component \'' + componentName + '\' has no template');
        }

        var clonedNodesArray = ko.utils.cloneNodes(template);
        ko.virtualElements.setDomNodeChildren(element, clonedNodesArray);
    }

    function createViewModel(componentDefinition, element, componentParams) {
        var componentViewModelFactory = componentDefinition['createViewModel'];
        return componentViewModelFactory
            ? componentViewModelFactory.call(componentDefinition, componentParams, { element: element })
            : componentParams; // Template-only component
    }

})();
var attrHtmlToJavascriptMap = { 'class': 'className', 'for': 'htmlFor' };
ko.bindingHandlers['attr'] = {
    'update': function(element, valueAccessor, allBindings) {
        var value = ko.utils.unwrapObservable(valueAccessor()) || {};
        ko.utils.objectForEach(value, function(attrName, attrValue) {
            attrValue = ko.utils.unwrapObservable(attrValue);

            // To cover cases like "attr: { checked:someProp }", we want to remove the attribute entirely
            // when someProp is a "no value"-like value (strictly null, false, or undefined)
            // (because the absence of the "checked" attr is how to mark an element as not checked, etc.)
            var toRemove = (attrValue === false) || (attrValue === null) || (attrValue === undefined);
            if (toRemove)
                element.removeAttribute(attrName);

            // In IE <= 7 and IE8 Quirks Mode, you have to use the Javascript property name instead of the
            // HTML attribute name for certain attributes. IE8 Standards Mode supports the correct behavior,
            // but instead of figuring out the mode, we'll just set the attribute through the Javascript
            // property for IE <= 8.
            if (ko.utils.ieVersion <= 8 && attrName in attrHtmlToJavascriptMap) {
                attrName = attrHtmlToJavascriptMap[attrName];
                if (toRemove)
                    element.removeAttribute(attrName);
                else
                    element[attrName] = attrValue;
            } else if (!toRemove) {
                element.setAttribute(attrName, attrValue.toString());
            }

            // Treat "name" specially - although you can think of it as an attribute, it also needs
            // special handling on older versions of IE (https://github.com/SteveSanderson/knockout/pull/333)
            // Deliberately being case-sensitive here because XHTML would regard "Name" as a different thing
            // entirely, and there's no strong reason to allow for such casing in HTML.
            if (attrName === "name") {
                ko.utils.setElementName(element, toRemove ? "" : attrValue.toString());
            }
        });
    }
};
(function() {

ko.bindingHandlers['checked'] = {
    'after': ['value', 'attr'],
    'init': function (element, valueAccessor, allBindings) {
        var checkedValue = ko.pureComputed(function() {
            // Treat "value" like "checkedValue" when it is included with "checked" binding
            if (allBindings['has']('checkedValue')) {
                return ko.utils.unwrapObservable(allBindings.get('checkedValue'));
            } else if (allBindings['has']('value')) {
                return ko.utils.unwrapObservable(allBindings.get('value'));
            }

            return element.value;
        });

        function updateModel() {
            // This updates the model value from the view value.
            // It runs in response to DOM events (click) and changes in checkedValue.
            var isChecked = element.checked,
                elemValue = useCheckedValue ? checkedValue() : isChecked;

            // When we're first setting up this computed, don't change any model state.
            if (ko.computedContext.isInitial()) {
                return;
            }

            // We can ignore unchecked radio buttons, because some other radio
            // button will be getting checked, and that one can take care of updating state.
            if (isRadio && !isChecked) {
                return;
            }

            var modelValue = ko.dependencyDetection.ignore(valueAccessor);
            if (isValueArray) {
                if (oldElemValue !== elemValue) {
                    // When we're responding to the checkedValue changing, and the element is
                    // currently checked, replace the old elem value with the new elem value
                    // in the model array.
                    if (isChecked) {
                        ko.utils.addOrRemoveItem(modelValue, elemValue, true);
                        ko.utils.addOrRemoveItem(modelValue, oldElemValue, false);
                    }

                    oldElemValue = elemValue;
                } else {
                    // When we're responding to the user having checked/unchecked a checkbox,
                    // add/remove the element value to the model array.
                    ko.utils.addOrRemoveItem(modelValue, elemValue, isChecked);
                }
            } else {
                ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'checked', elemValue, true);
            }
        };

        function updateView() {
            // This updates the view value from the model value.
            // It runs in response to changes in the bound (checked) value.
            var modelValue = ko.utils.unwrapObservable(valueAccessor());

            if (isValueArray) {
                // When a checkbox is bound to an array, being checked represents its value being present in that array
                element.checked = ko.utils.arrayIndexOf(modelValue, checkedValue()) >= 0;
            } else if (isCheckbox) {
                // When a checkbox is bound to any other value (not an array), being checked represents the value being trueish
                element.checked = modelValue;
            } else {
                // For radio buttons, being checked means that the radio button's value corresponds to the model value
                element.checked = (checkedValue() === modelValue);
            }
        };

        var isCheckbox = element.type == "checkbox",
            isRadio = element.type == "radio";

        // Only bind to check boxes and radio buttons
        if (!isCheckbox && !isRadio) {
            return;
        }

        var isValueArray = isCheckbox && (ko.utils.unwrapObservable(valueAccessor()) instanceof Array),
            oldElemValue = isValueArray ? checkedValue() : undefined,
            useCheckedValue = isRadio || isValueArray;

        // IE 6 won't allow radio buttons to be selected unless they have a name
        if (isRadio && !element.name)
            ko.bindingHandlers['uniqueName']['init'](element, function() { return true });

        // Set up two computeds to update the binding:

        // The first responds to changes in the checkedValue value and to element clicks
        ko.computed(updateModel, null, { disposeWhenNodeIsRemoved: element });
        ko.utils.registerEventHandler(element, "click", updateModel);

        // The second responds to changes in the model value (the one associated with the checked binding)
        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
    }
};
ko.expressionRewriting.twoWayBindings['checked'] = true;

ko.bindingHandlers['checkedValue'] = {
    'update': function (element, valueAccessor) {
        element.value = ko.utils.unwrapObservable(valueAccessor());
    }
};

})();var classesWrittenByBindingKey = '__ko__cssValue';
ko.bindingHandlers['css'] = {
    'update': function (element, valueAccessor) {
        var value = ko.utils.unwrapObservable(valueAccessor());
        if (typeof value == "object") {
            ko.utils.objectForEach(value, function(className, shouldHaveClass) {
                shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);
                ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);
            });
        } else {
            value = String(value || ''); // Make sure we don't try to store or set a non-string value
            ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);
            element[classesWrittenByBindingKey] = value;
            ko.utils.toggleDomNodeCssClass(element, value, true);
        }
    }
};
ko.bindingHandlers['enable'] = {
    'update': function (element, valueAccessor) {
        var value = ko.utils.unwrapObservable(valueAccessor());
        if (value && element.disabled)
            element.removeAttribute("disabled");
        else if ((!value) && (!element.disabled))
            element.disabled = true;
    }
};

ko.bindingHandlers['disable'] = {
    'update': function (element, valueAccessor) {
        ko.bindingHandlers['enable']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) });
    }
};
// For certain common events (currently just 'click'), allow a simplified data-binding syntax
// e.g. click:handler instead of the usual full-length event:{click:handler}
function makeEventHandlerShortcut(eventName) {
    ko.bindingHandlers[eventName] = {
        'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
            var newValueAccessor = function () {
                var result = {};
                result[eventName] = valueAccessor();
                return result;
            };
            return ko.bindingHandlers['event']['init'].call(this, element, newValueAccessor, allBindings, viewModel, bindingContext);
        }
    }
}

ko.bindingHandlers['event'] = {
    'init' : function (element, valueAccessor, allBindings, viewModel, bindingContext) {
        var eventsToHandle = valueAccessor() || {};
        ko.utils.objectForEach(eventsToHandle, function(eventName) {
            if (typeof eventName == "string") {
                ko.utils.registerEventHandler(element, eventName, function (event) {
                    var handlerReturnValue;
                    var handlerFunction = valueAccessor()[eventName];
                    if (!handlerFunction)
                        return;

                    try {
                        // Take all the event args, and prefix with the viewmodel
                        var argsForHandler = ko.utils.makeArray(arguments);
                        viewModel = bindingContext['$data'];
                        argsForHandler.unshift(viewModel);
                        handlerReturnValue = handlerFunction.apply(viewModel, argsForHandler);
                    } finally {
                        if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
                            if (event.preventDefault)
                                event.preventDefault();
                            else
                                event.returnValue = false;
                        }
                    }

                    var bubble = allBindings.get(eventName + 'Bubble') !== false;
                    if (!bubble) {
                        event.cancelBubble = true;
                        if (event.stopPropagation)
                            event.stopPropagation();
                    }
                });
            }
        });
    }
};
// "foreach: someExpression" is equivalent to "template: { foreach: someExpression }"
// "foreach: { data: someExpression, afterAdd: myfn }" is equivalent to "template: { foreach: someExpression, afterAdd: myfn }"
ko.bindingHandlers['foreach'] = {
    makeTemplateValueAccessor: function(valueAccessor) {
        return function() {
            var modelValue = valueAccessor(),
                unwrappedValue = ko.utils.peekObservable(modelValue);    // Unwrap without setting a dependency here

            // If unwrappedValue is the array, pass in the wrapped value on its own
            // The value will be unwrapped and tracked within the template binding
            // (See https://github.com/SteveSanderson/knockout/issues/523)
            if ((!unwrappedValue) || typeof unwrappedValue.length == "number")
                return { 'foreach': modelValue, 'templateEngine': ko.nativeTemplateEngine.instance };

            // If unwrappedValue.data is the array, preserve all relevant options and unwrap again value so we get updates
            ko.utils.unwrapObservable(modelValue);
            return {
                'foreach': unwrappedValue['data'],
                'as': unwrappedValue['as'],
                'includeDestroyed': unwrappedValue['includeDestroyed'],
                'afterAdd': unwrappedValue['afterAdd'],
                'beforeRemove': unwrappedValue['beforeRemove'],
                'afterRender': unwrappedValue['afterRender'],
                'beforeMove': unwrappedValue['beforeMove'],
                'afterMove': unwrappedValue['afterMove'],
                'templateEngine': ko.nativeTemplateEngine.instance
            };
        };
    },
    'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor));
    },
    'update': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
        return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext);
    }
};
ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings
ko.virtualElements.allowedBindings['foreach'] = true;
var hasfocusUpdatingProperty = '__ko_hasfocusUpdating';
var hasfocusLastValue = '__ko_hasfocusLastValue';
ko.bindingHandlers['hasfocus'] = {
    'init': function(element, valueAccessor, allBindings) {
        var handleElementFocusChange = function(isFocused) {
            // Where possible, ignore which event was raised and determine focus state using activeElement,
            // as this avoids phantom focus/blur events raised when changing tabs in modern browsers.
            // However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers,
            // prevent a loss of focus when changing tabs/windows by setting a flag that prevents hasfocus
            // from calling 'blur()' on the element when it loses focus.
            // Discussion at https://github.com/SteveSanderson/knockout/pull/352
            element[hasfocusUpdatingProperty] = true;
            var ownerDoc = element.ownerDocument;
            if ("activeElement" in ownerDoc) {
                var active;
                try {
                    active = ownerDoc.activeElement;
                } catch(e) {
                    // IE9 throws if you access activeElement during page load (see issue #703)
                    active = ownerDoc.body;
                }
                isFocused = (active === element);
            }
            var modelValue = valueAccessor();
            ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'hasfocus', isFocused, true);

            //cache the latest value, so we can avoid unnecessarily calling focus/blur in the update function
            element[hasfocusLastValue] = isFocused;
            element[hasfocusUpdatingProperty] = false;
        };
        var handleElementFocusIn = handleElementFocusChange.bind(null, true);
        var handleElementFocusOut = handleElementFocusChange.bind(null, false);

        ko.utils.registerEventHandler(element, "focus", handleElementFocusIn);
        ko.utils.registerEventHandler(element, "focusin", handleElementFocusIn); // For IE
        ko.utils.registerEventHandler(element, "blur",  handleElementFocusOut);
        ko.utils.registerEventHandler(element, "focusout",  handleElementFocusOut); // For IE
    },
    'update': function(element, valueAccessor) {
        var value = !!ko.utils.unwrapObservable(valueAccessor()); //force boolean to compare with last value
        if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) {
            value ? element.focus() : element.blur();
            ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, value ? "focusin" : "focusout"]); // For IE, which doesn't reliably fire "focus" or "blur" events synchronously
        }
    }
};
ko.expressionRewriting.twoWayBindings['hasfocus'] = true;

ko.bindingHandlers['hasFocus'] = ko.bindingHandlers['hasfocus']; // Make "hasFocus" an alias
ko.expressionRewriting.twoWayBindings['hasFocus'] = true;
ko.bindingHandlers['html'] = {
    'init': function() {
        // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)
        return { 'controlsDescendantBindings': true };
    },
    'update': function (element, valueAccessor) {
        // setHtml will unwrap the value if needed
        ko.utils.setHtml(element, valueAccessor());
    }
};
// Makes a binding like with or if
function makeWithIfBinding(bindingKey, isWith, isNot, makeContextCallback) {
    ko.bindingHandlers[bindingKey] = {
        'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
            var didDisplayOnLastUpdate,
                savedNodes;
            ko.computed(function() {
                var dataValue = ko.utils.unwrapObservable(valueAccessor()),
                    shouldDisplay = !isNot !== !dataValue, // equivalent to isNot ? !dataValue : !!dataValue
                    isFirstRender = !savedNodes,
                    needsRefresh = isFirstRender || isWith || (shouldDisplay !== didDisplayOnLastUpdate);

                if (needsRefresh) {
                    // Save a copy of the inner nodes on the initial update, but only if we have dependencies.
                    if (isFirstRender && ko.computedContext.getDependenciesCount()) {
                        savedNodes = ko.utils.cloneNodes(ko.virtualElements.childNodes(element), true /* shouldCleanNodes */);
                    }

                    if (shouldDisplay) {
                        if (!isFirstRender) {
                            ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));
                        }
                        ko.applyBindingsToDescendants(makeContextCallback ? makeContextCallback(bindingContext, dataValue) : bindingContext, element);
                    } else {
                        ko.virtualElements.emptyNode(element);
                    }

                    didDisplayOnLastUpdate = shouldDisplay;
                }
            }, null, { disposeWhenNodeIsRemoved: element });
            return { 'controlsDescendantBindings': true };
        }
    };
    ko.expressionRewriting.bindingRewriteValidators[bindingKey] = false; // Can't rewrite control flow bindings
    ko.virtualElements.allowedBindings[bindingKey] = true;
}

// Construct the actual binding handlers
makeWithIfBinding('if');
makeWithIfBinding('ifnot', false /* isWith */, true /* isNot */);
makeWithIfBinding('with', true /* isWith */, false /* isNot */,
    function(bindingContext, dataValue) {
        return bindingContext['createChildContext'](dataValue);
    }
);
var captionPlaceholder = {};
ko.bindingHandlers['options'] = {
    'init': function(element) {
        if (ko.utils.tagNameLower(element) !== "select")
            throw new Error("options binding applies only to SELECT elements");

        // Remove all existing <option>s.
        while (element.length > 0) {
            element.remove(0);
        }

        // Ensures that the binding processor doesn't try to bind the options
        return { 'controlsDescendantBindings': true };
    },
    'update': function (element, valueAccessor, allBindings) {
        function selectedOptions() {
            return ko.utils.arrayFilter(element.options, function (node) { return node.selected; });
        }

        var selectWasPreviouslyEmpty = element.length == 0;
        var previousScrollTop = (!selectWasPreviouslyEmpty && element.multiple) ? element.scrollTop : null;
        var unwrappedArray = ko.utils.unwrapObservable(valueAccessor());
        var includeDestroyed = allBindings.get('optionsIncludeDestroyed');
        var arrayToDomNodeChildrenOptions = {};
        var captionValue;
        var filteredArray;
        var previousSelectedValues;

        if (element.multiple) {
            previousSelectedValues = ko.utils.arrayMap(selectedOptions(), ko.selectExtensions.readValue);
        } else {
            previousSelectedValues = element.selectedIndex >= 0 ? [ ko.selectExtensions.readValue(element.options[element.selectedIndex]) ] : [];
        }

        if (unwrappedArray) {
            if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
                unwrappedArray = [unwrappedArray];

            // Filter out any entries marked as destroyed
            filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
                return includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
            });

            // If caption is included, add it to the array
            if (allBindings['has']('optionsCaption')) {
                captionValue = ko.utils.unwrapObservable(allBindings.get('optionsCaption'));
                // If caption value is null or undefined, don't show a caption
                if (captionValue !== null && captionValue !== undefined) {
                    filteredArray.unshift(captionPlaceholder);
                }
            }
        } else {
            // If a falsy value is provided (e.g. null), we'll simply empty the select element
        }

        function applyToObject(object, predicate, defaultValue) {
            var predicateType = typeof predicate;
            if (predicateType == "function")    // Given a function; run it against the data value
                return predicate(object);
            else if (predicateType == "string") // Given a string; treat it as a property name on the data value
                return object[predicate];
            else                                // Given no optionsText arg; use the data value itself
                return defaultValue;
        }

        // The following functions can run at two different times:
        // The first is when the whole array is being updated directly from this binding handler.
        // The second is when an observable value for a specific array entry is updated.
        // oldOptions will be empty in the first case, but will be filled with the previously generated option in the second.
        var itemUpdate = false;
        function optionForArrayItem(arrayEntry, index, oldOptions) {
            if (oldOptions.length) {
                previousSelectedValues = oldOptions[0].selected ? [ ko.selectExtensions.readValue(oldOptions[0]) ] : [];
                itemUpdate = true;
            }
            var option = element.ownerDocument.createElement("option");
            if (arrayEntry === captionPlaceholder) {
                ko.utils.setTextContent(option, allBindings.get('optionsCaption'));
                ko.selectExtensions.writeValue(option, undefined);
            } else {
                // Apply a value to the option element
                var optionValue = applyToObject(arrayEntry, allBindings.get('optionsValue'), arrayEntry);
                ko.selectExtensions.writeValue(option, ko.utils.unwrapObservable(optionValue));

                // Apply some text to the option element
                var optionText = applyToObject(arrayEntry, allBindings.get('optionsText'), optionValue);
                ko.utils.setTextContent(option, optionText);
            }
            return [option];
        }

        // By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection
        // problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208
        arrayToDomNodeChildrenOptions['beforeRemove'] =
            function (option) {
                element.removeChild(option);
            };

        function setSelectionCallback(arrayEntry, newOptions) {
            // IE6 doesn't like us to assign selection to OPTION nodes before they're added to the document.
            // That's why we first added them without selection. Now it's time to set the selection.
            if (previousSelectedValues.length) {
                var isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;
                ko.utils.setOptionNodeSelectionState(newOptions[0], isSelected);

                // If this option was changed from being selected during a single-item update, notify the change
                if (itemUpdate && !isSelected)
                    ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
            }
        }

        var callback = setSelectionCallback;
        if (allBindings['has']('optionsAfterRender')) {
            callback = function(arrayEntry, newOptions) {
                setSelectionCallback(arrayEntry, newOptions);
                ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]);
            }
        }

        ko.utils.setDomNodeChildrenFromArrayMapping(element, filteredArray, optionForArrayItem, arrayToDomNodeChildrenOptions, callback);

        ko.dependencyDetection.ignore(function () {
            if (allBindings.get('valueAllowUnset') && allBindings['has']('value')) {
                // The model value is authoritative, so make sure its value is the one selected
                ko.selectExtensions.writeValue(element, ko.utils.unwrapObservable(allBindings.get('value')), true /* allowUnset */);
            } else {
                // Determine if the selection has changed as a result of updating the options list
                var selectionChanged;
                if (element.multiple) {
                    // For a multiple-select box, compare the new selection count to the previous one
                    // But if nothing was selected before, the selection can't have changed
                    selectionChanged = previousSelectedValues.length && selectedOptions().length < previousSelectedValues.length;
                } else {
                    // For a single-select box, compare the current value to the previous value
                    // But if nothing was selected before or nothing is selected now, just look for a change in selection
                    selectionChanged = (previousSelectedValues.length && element.selectedIndex >= 0)
                        ? (ko.selectExtensions.readValue(element.options[element.selectedIndex]) !== previousSelectedValues[0])
                        : (previousSelectedValues.length || element.selectedIndex >= 0);
                }

                // Ensure consistency between model value and selected option.
                // If the dropdown was changed so that selection is no longer the same,
                // notify the value or selectedOptions binding.
                if (selectionChanged) {
                    ko.utils.triggerEvent(element, "change");
                }
            }
        });

        // Workaround for IE bug
        ko.utils.ensureSelectElementIsRenderedCorrectly(element);

        if (previousScrollTop && Math.abs(previousScrollTop - element.scrollTop) > 20)
            element.scrollTop = previousScrollTop;
    }
};
ko.bindingHandlers['options'].optionValueDomDataKey = ko.utils.domData.nextKey();
ko.bindingHandlers['selectedOptions'] = {
    'after': ['options', 'foreach'],
    'init': function (element, valueAccessor, allBindings) {
        ko.utils.registerEventHandler(element, "change", function () {
            var value = valueAccessor(), valueToWrite = [];
            ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
                if (node.selected)
                    valueToWrite.push(ko.selectExtensions.readValue(node));
            });
            ko.expressionRewriting.writeValueToProperty(value, allBindings, 'selectedOptions', valueToWrite);
        });
    },
    'update': function (element, valueAccessor) {
        if (ko.utils.tagNameLower(element) != "select")
            throw new Error("values binding applies only to SELECT elements");

        var newValue = ko.utils.unwrapObservable(valueAccessor());
        if (newValue && typeof newValue.length == "number") {
            ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
                var isSelected = ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0;
                ko.utils.setOptionNodeSelectionState(node, isSelected);
            });
        }
    }
};
ko.expressionRewriting.twoWayBindings['selectedOptions'] = true;
ko.bindingHandlers['style'] = {
    'update': function (element, valueAccessor) {
        var value = ko.utils.unwrapObservable(valueAccessor() || {});
        ko.utils.objectForEach(value, function(styleName, styleValue) {
            styleValue = ko.utils.unwrapObservable(styleValue);

            if (styleValue === null || styleValue === undefined || styleValue === false) {
                // Empty string removes the value, whereas null/undefined have no effect
                styleValue = "";
            }

            element.style[styleName] = styleValue;
        });
    }
};
ko.bindingHandlers['submit'] = {
    'init': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
        if (typeof valueAccessor() != "function")
            throw new Error("The value for a submit binding must be a function");
        ko.utils.registerEventHandler(element, "submit", function (event) {
            var handlerReturnValue;
            var value = valueAccessor();
            try { handlerReturnValue = value.call(bindingContext['$data'], element); }
            finally {
                if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
                    if (event.preventDefault)
                        event.preventDefault();
                    else
                        event.returnValue = false;
                }
            }
        });
    }
};
ko.bindingHandlers['text'] = {
    'init': function() {
        // Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications).
        // It should also make things faster, as we no longer have to consider whether the text node might be bindable.
        return { 'controlsDescendantBindings': true };
    },
    'update': function (element, valueAccessor) {
        ko.utils.setTextContent(element, valueAccessor());
    }
};
ko.virtualElements.allowedBindings['text'] = true;
(function () {

if (window && window.navigator) {
    var parseVersion = function (matches) {
        if (matches) {
            return parseFloat(matches[1]);
        }
    };

    // Detect various browser versions because some old versions don't fully support the 'input' event
    var operaVersion = window.opera && window.opera.version && parseInt(window.opera.version()),
        userAgent = window.navigator.userAgent,
        safariVersion = parseVersion(userAgent.match(/^(?:(?!chrome).)*version\/([^ ]*) safari/i)),
        firefoxVersion = parseVersion(userAgent.match(/Firefox\/([^ ]*)/));
}

// IE 8 and 9 have bugs that prevent the normal events from firing when the value changes.
// But it does fire the 'selectionchange' event on many of those, presumably because the
// cursor is moving and that counts as the selection changing. The 'selectionchange' event is
// fired at the document level only and doesn't directly indicate which element changed. We
// set up just one event handler for the document and use 'activeElement' to determine which
// element was changed.
if (ko.utils.ieVersion < 10) {
    var selectionChangeRegisteredName = ko.utils.domData.nextKey(),
        selectionChangeHandlerName = ko.utils.domData.nextKey();
    var selectionChangeHandler = function(event) {
        var target = this.activeElement,
            handler = target && ko.utils.domData.get(target, selectionChangeHandlerName);
        if (handler) {
            handler(event);
        }
    };
    var registerForSelectionChangeEvent = function (element, handler) {
        var ownerDoc = element.ownerDocument;
        if (!ko.utils.domData.get(ownerDoc, selectionChangeRegisteredName)) {
            ko.utils.domData.set(ownerDoc, selectionChangeRegisteredName, true);
            ko.utils.registerEventHandler(ownerDoc, 'selectionchange', selectionChangeHandler);
        }
        ko.utils.domData.set(element, selectionChangeHandlerName, handler);
    };
}

ko.bindingHandlers['textInput'] = {
    'init': function (element, valueAccessor, allBindings) {

        var previousElementValue = element.value,
            timeoutHandle,
            elementValueBeforeEvent;

        var updateModel = function (event) {
            clearTimeout(timeoutHandle);
            elementValueBeforeEvent = timeoutHandle = undefined;

            var elementValue = element.value;
            if (previousElementValue !== elementValue) {
                // Provide a way for tests to know exactly which event was processed
                if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;
                previousElementValue = elementValue;
                ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);
            }
        };

        var deferUpdateModel = function (event) {
            if (!timeoutHandle) {
                // The elementValueBeforeEvent variable is set *only* during the brief gap between an
                // event firing and the updateModel function running. This allows us to ignore model
                // updates that are from the previous state of the element, usually due to techniques
                // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.
                elementValueBeforeEvent = element.value;
                var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;
                timeoutHandle = setTimeout(handler, 4);
            }
        };

        var updateView = function () {
            var modelValue = ko.utils.unwrapObservable(valueAccessor());

            if (modelValue === null || modelValue === undefined) {
                modelValue = '';
            }

            if (elementValueBeforeEvent !== undefined && modelValue === elementValueBeforeEvent) {
                setTimeout(updateView, 4);
                return;
            }

            // Update the element only if the element and model are different. On some browsers, updating the value
            // will move the cursor to the end of the input, which would be bad while the user is typing.
            if (element.value !== modelValue) {
                previousElementValue = modelValue;  // Make sure we ignore events (propertychange) that result from updating the value
                element.value = modelValue;
            }
        };

        var onEvent = function (event, handler) {
            ko.utils.registerEventHandler(element, event, handler);
        };

        if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
            // Provide a way for tests to specify exactly which events are bound
            ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) {
                if (eventName.slice(0,5) == 'after') {
                    onEvent(eventName.slice(5), deferUpdateModel);
                } else {
                    onEvent(eventName, updateModel);
                }
            });
        } else {
            if (ko.utils.ieVersion < 10) {
                // Internet Explorer <= 8 doesn't support the 'input' event, but does include 'propertychange' that fires whenever
                // any property of an element changes. Unlike 'input', it also fires if a property is changed from JavaScript code,
                // but that's an acceptable compromise for this binding. IE 9 does support 'input', but since it doesn't fire it
                // when using autocomplete, we'll use 'propertychange' for it also.
                onEvent('propertychange', function(event) {
                    if (event.propertyName === 'value') {
                        updateModel(event);
                    }
                });

                if (ko.utils.ieVersion == 8) {
                    // IE 8 has a bug where it fails to fire 'propertychange' on the first update following a value change from
                    // JavaScript code. It also doesn't fire if you clear the entire value. To fix this, we bind to the following
                    // events too.
                    onEvent('keyup', updateModel);      // A single keystoke
                    onEvent('keydown', updateModel);    // The first character when a key is held down
                }
                if (ko.utils.ieVersion >= 8) {
                    // Internet Explorer 9 doesn't fire the 'input' event when deleting text, including using
                    // the backspace, delete, or ctrl-x keys, clicking the 'x' to clear the input, dragging text
                    // out of the field, and cutting or deleting text using the context menu. 'selectionchange'
                    // can detect all of those except dragging text out of the field, for which we use 'dragend'.
                    // These are also needed in IE8 because of the bug described above.
                    registerForSelectionChangeEvent(element, updateModel);  // 'selectionchange' covers cut, paste, drop, delete, etc.
                    onEvent('dragend', deferUpdateModel);
                }
            } else {
                // All other supported browsers support the 'input' event, which fires whenever the content of the element is changed
                // through the user interface.
                onEvent('input', updateModel);

                if (safariVersion < 5 && ko.utils.tagNameLower(element) === "textarea") {
                    // Safari <5 doesn't fire the 'input' event for <textarea> elements (it does fire 'textInput'
                    // but only when typing). So we'll just catch as much as we can with keydown, cut, and paste.
                    onEvent('keydown', deferUpdateModel);
                    onEvent('paste', deferUpdateModel);
                    onEvent('cut', deferUpdateModel);
                } else if (operaVersion < 11) {
                    // Opera 10 doesn't always fire the 'input' event for cut, paste, undo & drop operations.
                    // We can try to catch some of those using 'keydown'.
                    onEvent('keydown', deferUpdateModel);
                } else if (firefoxVersion < 4.0) {
                    // Firefox <= 3.6 doesn't fire the 'input' event when text is filled in through autocomplete
                    onEvent('DOMAutoComplete', updateModel);

                    // Firefox <=3.5 doesn't fire the 'input' event when text is dropped into the input.
                    onEvent('dragdrop', updateModel);       // <3.5
                    onEvent('drop', updateModel);           // 3.5
                }
            }
        }

        // Bind to the change event so that we can catch programmatic updates of the value that fire this event.
        onEvent('change', updateModel);

        ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
    }
};
ko.expressionRewriting.twoWayBindings['textInput'] = true;

// textinput is an alias for textInput
ko.bindingHandlers['textinput'] = {
    // preprocess is the only way to set up a full alias
    'preprocess': function (value, name, addBinding) {
        addBinding('textInput', value);
    }
};

})();ko.bindingHandlers['uniqueName'] = {
    'init': function (element, valueAccessor) {
        if (valueAccessor()) {
            var name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);
            ko.utils.setElementName(element, name);
        }
    }
};
ko.bindingHandlers['uniqueName'].currentIndex = 0;
ko.bindingHandlers['value'] = {
    'after': ['options', 'foreach'],
    'init': function (element, valueAccessor, allBindings) {
        // If the value binding is placed on a radio/checkbox, then just pass through to checkedValue and quit
        if (element.tagName.toLowerCase() == "input" && (element.type == "checkbox" || element.type == "radio")) {
            ko.applyBindingAccessorsToNode(element, { 'checkedValue': valueAccessor });
            return;
        }

        // Always catch "change" event; possibly other events too if asked
        var eventsToCatch = ["change"];
        var requestedEventsToCatch = allBindings.get("valueUpdate");
        var propertyChangedFired = false;
        var elementValueBeforeEvent = null;

        if (requestedEventsToCatch) {
            if (typeof requestedEventsToCatch == "string") // Allow both individual event names, and arrays of event names
                requestedEventsToCatch = [requestedEventsToCatch];
            ko.utils.arrayPushAll(eventsToCatch, requestedEventsToCatch);
            eventsToCatch = ko.utils.arrayGetDistinctValues(eventsToCatch);
        }

        var valueUpdateHandler = function() {
            elementValueBeforeEvent = null;
            propertyChangedFired = false;
            var modelValue = valueAccessor();
            var elementValue = ko.selectExtensions.readValue(element);
            ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
        }

        // Workaround for https://github.com/SteveSanderson/knockout/issues/122
        // IE doesn't fire "change" events on textboxes if the user selects a value from its autocomplete list
        var ieAutoCompleteHackNeeded = ko.utils.ieVersion && element.tagName.toLowerCase() == "input" && element.type == "text"
                                       && element.autocomplete != "off" && (!element.form || element.form.autocomplete != "off");
        if (ieAutoCompleteHackNeeded && ko.utils.arrayIndexOf(eventsToCatch, "propertychange") == -1) {
            ko.utils.registerEventHandler(element, "propertychange", function () { propertyChangedFired = true });
            ko.utils.registerEventHandler(element, "focus", function () { propertyChangedFired = false });
            ko.utils.registerEventHandler(element, "blur", function() {
                if (propertyChangedFired) {
                    valueUpdateHandler();
                }
            });
        }

        ko.utils.arrayForEach(eventsToCatch, function(eventName) {
            // The syntax "after<eventname>" means "run the handler asynchronously after the event"
            // This is useful, for example, to catch "keydown" events after the browser has updated the control
            // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
            var handler = valueUpdateHandler;
            if (ko.utils.stringStartsWith(eventName, "after")) {
                handler = function() {
                    // The elementValueBeforeEvent variable is non-null *only* during the brief gap between
                    // a keyX event firing and the valueUpdateHandler running, which is scheduled to happen
                    // at the earliest asynchronous opportunity. We store this temporary information so that
                    // if, between keyX and valueUpdateHandler, the underlying model value changes separately,
                    // we can overwrite that model value change with the value the user just typed. Otherwise,
                    // techniques like rateLimit can trigger model changes at critical moments that will
                    // override the user's inputs, causing keystrokes to be lost.
                    elementValueBeforeEvent = ko.selectExtensions.readValue(element);
                    setTimeout(valueUpdateHandler, 0);
                };
                eventName = eventName.substring("after".length);
            }
            ko.utils.registerEventHandler(element, eventName, handler);
        });

        var updateFromModel = function () {
            var newValue = ko.utils.unwrapObservable(valueAccessor());
            var elementValue = ko.selectExtensions.readValue(element);

            if (elementValueBeforeEvent !== null && newValue === elementValueBeforeEvent) {
                setTimeout(updateFromModel, 0);
                return;
            }

            var valueHasChanged = (newValue !== elementValue);

            if (valueHasChanged) {
                if (ko.utils.tagNameLower(element) === "select") {
                    var allowUnset = allBindings.get('valueAllowUnset');
                    var applyValueAction = function () {
                        ko.selectExtensions.writeValue(element, newValue, allowUnset);
                    };
                    applyValueAction();

                    if (!allowUnset && newValue !== ko.selectExtensions.readValue(element)) {
                        // If you try to set a model value that can't be represented in an already-populated dropdown, reject that change,
                        // because you're not allowed to have a model value that disagrees with a visible UI selection.
                        ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
                    } else {
                        // Workaround for IE6 bug: It won't reliably apply values to SELECT nodes during the same execution thread
                        // right after you've changed the set of OPTION nodes on it. So for that node type, we'll schedule a second thread
                        // to apply the value as well.
                        setTimeout(applyValueAction, 0);
                    }
                } else {
                    ko.selectExtensions.writeValue(element, newValue);
                }
            }
        };

        ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
    },
    'update': function() {} // Keep for backwards compatibility with code that may have wrapped value binding
};
ko.expressionRewriting.twoWayBindings['value'] = true;
ko.bindingHandlers['visible'] = {
    'update': function (element, valueAccessor) {
        var value = ko.utils.unwrapObservable(valueAccessor());
        var isCurrentlyVisible = !(element.style.display == "none");
        if (value && !isCurrentlyVisible)
            element.style.display = "";
        else if ((!value) && isCurrentlyVisible)
            element.style.display = "none";
    }
};
// 'click' is just a shorthand for the usual full-length event:{click:handler}
makeEventHandlerShortcut('click');
// If you want to make a custom template engine,
//
// [1] Inherit from this class (like ko.nativeTemplateEngine does)
// [2] Override 'renderTemplateSource', supplying a function with this signature:
//
//        function (templateSource, bindingContext, options) {
//            // - templateSource.text() is the text of the template you should render
//            // - bindingContext.$data is the data you should pass into the template
//            //   - you might also want to make bindingContext.$parent, bindingContext.$parents,
//            //     and bindingContext.$root available in the template too
//            // - options gives you access to any other properties set on "data-bind: { template: options }"
//            //
//            // Return value: an array of DOM nodes
//        }
//
// [3] Override 'createJavaScriptEvaluatorBlock', supplying a function with this signature:
//
//        function (script) {
//            // Return value: Whatever syntax means "Evaluate the JavaScript statement 'script' and output the result"
//            //               For example, the jquery.tmpl template engine converts 'someScript' to '${ someScript }'
//        }
//
//     This is only necessary if you want to allow data-bind attributes to reference arbitrary template variables.
//     If you don't want to allow that, you can set the property 'allowTemplateRewriting' to false (like ko.nativeTemplateEngine does)
//     and then you don't need to override 'createJavaScriptEvaluatorBlock'.

ko.templateEngine = function () { };

ko.templateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options) {
    throw new Error("Override renderTemplateSource");
};

ko.templateEngine.prototype['createJavaScriptEvaluatorBlock'] = function (script) {
    throw new Error("Override createJavaScriptEvaluatorBlock");
};

ko.templateEngine.prototype['makeTemplateSource'] = function(template, templateDocument) {
    // Named template
    if (typeof template == "string") {
        templateDocument = templateDocument || document;
        var elem = templateDocument.getElementById(template);
        if (!elem)
            throw new Error("Cannot find template with ID " + template);
        return new ko.templateSources.domElement(elem);
    } else if ((template.nodeType == 1) || (template.nodeType == 8)) {
        // Anonymous template
        return new ko.templateSources.anonymousTemplate(template);
    } else
        throw new Error("Unknown template type: " + template);
};

ko.templateEngine.prototype['renderTemplate'] = function (template, bindingContext, options, templateDocument) {
    var templateSource = this['makeTemplateSource'](template, templateDocument);
    return this['renderTemplateSource'](templateSource, bindingContext, options);
};

ko.templateEngine.prototype['isTemplateRewritten'] = function (template, templateDocument) {
    // Skip rewriting if requested
    if (this['allowTemplateRewriting'] === false)
        return true;
    return this['makeTemplateSource'](template, templateDocument)['data']("isRewritten");
};

ko.templateEngine.prototype['rewriteTemplate'] = function (template, rewriterCallback, templateDocument) {
    var templateSource = this['makeTemplateSource'](template, templateDocument);
    var rewritten = rewriterCallback(templateSource['text']());
    templateSource['text'](rewritten);
    templateSource['data']("isRewritten", true);
};

ko.exportSymbol('templateEngine', ko.templateEngine);

ko.templateRewriting = (function () {
    var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi;
    var memoizeVirtualContainerBindingSyntaxRegex = /<!--\s*ko\b\s*([\s\S]*?)\s*-->/g;

    function validateDataBindValuesForRewriting(keyValueArray) {
        var allValidators = ko.expressionRewriting.bindingRewriteValidators;
        for (var i = 0; i < keyValueArray.length; i++) {
            var key = keyValueArray[i]['key'];
            if (allValidators.hasOwnProperty(key)) {
                var validator = allValidators[key];

                if (typeof validator === "function") {
                    var possibleErrorMessage = validator(keyValueArray[i]['value']);
                    if (possibleErrorMessage)
                        throw new Error(possibleErrorMessage);
                } else if (!validator) {
                    throw new Error("This template engine does not support the '" + key + "' binding within its templates");
                }
            }
        }
    }

    function constructMemoizedTagReplacement(dataBindAttributeValue, tagToRetain, nodeName, templateEngine) {
        var dataBindKeyValueArray = ko.expressionRewriting.parseObjectLiteral(dataBindAttributeValue);
        validateDataBindValuesForRewriting(dataBindKeyValueArray);
        var rewrittenDataBindAttributeValue = ko.expressionRewriting.preProcessBindings(dataBindKeyValueArray, {'valueAccessors':true});

        // For no obvious reason, Opera fails to evaluate rewrittenDataBindAttributeValue unless it's wrapped in an additional
        // anonymous function, even though Opera's built-in debugger can evaluate it anyway. No other browser requires this
        // extra indirection.
        var applyBindingsToNextSiblingScript =
            "ko.__tr_ambtns(function($context,$element){return(function(){return{ " + rewrittenDataBindAttributeValue + " } })()},'" + nodeName.toLowerCase() + "')";
        return templateEngine['createJavaScriptEvaluatorBlock'](applyBindingsToNextSiblingScript) + tagToRetain;
    }

    return {
        ensureTemplateIsRewritten: function (template, templateEngine, templateDocument) {
            if (!templateEngine['isTemplateRewritten'](template, templateDocument))
                templateEngine['rewriteTemplate'](template, function (htmlString) {
                    return ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine);
                }, templateDocument);
        },

        memoizeBindingAttributeSyntax: function (htmlString, templateEngine) {
            return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, function () {
                return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[4], /* tagToRetain: */ arguments[1], /* nodeName: */ arguments[2], templateEngine);
            }).replace(memoizeVirtualContainerBindingSyntaxRegex, function() {
                return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ "<!-- ko -->", /* nodeName: */ "#comment", templateEngine);
            });
        },

        applyMemoizedBindingsToNextSibling: function (bindings, nodeName) {
            return ko.memoization.memoize(function (domNode, bindingContext) {
                var nodeToBind = domNode.nextSibling;
                if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) {
                    ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext);
                }
            });
        }
    }
})();


// Exported only because it has to be referenced by string lookup from within rewritten template
ko.exportSymbol('__tr_ambtns', ko.templateRewriting.applyMemoizedBindingsToNextSibling);
(function() {
    // A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving
    // logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.)
    //
    // Two are provided by default:
    //  1. ko.templateSources.domElement       - reads/writes the text content of an arbitrary DOM element
    //  2. ko.templateSources.anonymousElement - uses ko.utils.domData to read/write text *associated* with the DOM element, but
    //                                           without reading/writing the actual element text content, since it will be overwritten
    //                                           with the rendered template output.
    // You can implement your own template source if you want to fetch/store templates somewhere other than in DOM elements.
    // Template sources need to have the following functions:
    //   text() 			- returns the template text from your storage location
    //   text(value)		- writes the supplied template text to your storage location
    //   data(key)			- reads values stored using data(key, value) - see below
    //   data(key, value)	- associates "value" with this template and the key "key". Is used to store information like "isRewritten".
    //
    // Optionally, template sources can also have the following functions:
    //   nodes()            - returns a DOM element containing the nodes of this template, where available
    //   nodes(value)       - writes the given DOM element to your storage location
    // If a DOM element is available for a given template source, template engines are encouraged to use it in preference over text()
    // for improved speed. However, all templateSources must supply text() even if they don't supply nodes().
    //
    // Once you've implemented a templateSource, make your template engine use it by subclassing whatever template engine you were
    // using and overriding "makeTemplateSource" to return an instance of your custom template source.

    ko.templateSources = {};

    // ---- ko.templateSources.domElement -----

    ko.templateSources.domElement = function(element) {
        this.domElement = element;
    }

    ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {
        var tagNameLower = ko.utils.tagNameLower(this.domElement),
            elemContentsProperty = tagNameLower === "script" ? "text"
                                 : tagNameLower === "textarea" ? "value"
                                 : "innerHTML";

        if (arguments.length == 0) {
            return this.domElement[elemContentsProperty];
        } else {
            var valueToWrite = arguments[0];
            if (elemContentsProperty === "innerHTML")
                ko.utils.setHtml(this.domElement, valueToWrite);
            else
                this.domElement[elemContentsProperty] = valueToWrite;
        }
    };

    var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
    ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {
        if (arguments.length === 1) {
            return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key);
        } else {
            ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);
        }
    };

    // ---- ko.templateSources.anonymousTemplate -----
    // Anonymous templates are normally saved/retrieved as DOM nodes through "nodes".
    // For compatibility, you can also read "text"; it will be serialized from the nodes on demand.
    // Writing to "text" is still supported, but then the template data will not be available as DOM nodes.

    var anonymousTemplatesDomDataKey = ko.utils.domData.nextKey();
    ko.templateSources.anonymousTemplate = function(element) {
        this.domElement = element;
    }
    ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();
    ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate;
    ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) {
        if (arguments.length == 0) {
            var templateData = ko.utils.domData.get(this.domElement, anonymousTemplatesDomDataKey) || {};
            if (templateData.textData === undefined && templateData.containerData)
                templateData.textData = templateData.containerData.innerHTML;
            return templateData.textData;
        } else {
            var valueToWrite = arguments[0];
            ko.utils.domData.set(this.domElement, anonymousTemplatesDomDataKey, {textData: valueToWrite});
        }
    };
    ko.templateSources.domElement.prototype['nodes'] = function(/* valueToWrite */) {
        if (arguments.length == 0) {
            var templateData = ko.utils.domData.get(this.domElement, anonymousTemplatesDomDataKey) || {};
            return templateData.containerData;
        } else {
            var valueToWrite = arguments[0];
            ko.utils.domData.set(this.domElement, anonymousTemplatesDomDataKey, {containerData: valueToWrite});
        }
    };

    ko.exportSymbol('templateSources', ko.templateSources);
    ko.exportSymbol('templateSources.domElement', ko.templateSources.domElement);
    ko.exportSymbol('templateSources.anonymousTemplate', ko.templateSources.anonymousTemplate);
})();
(function () {
    var _templateEngine;
    ko.setTemplateEngine = function (templateEngine) {
        if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine))
            throw new Error("templateEngine must inherit from ko.templateEngine");
        _templateEngine = templateEngine;
    }

    function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) {
        var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);
        while (nextInQueue && ((node = nextInQueue) !== firstOutOfRangeNode)) {
            nextInQueue = ko.virtualElements.nextSibling(node);
            action(node, nextInQueue);
        }
    }

    function activateBindingsOnContinuousNodeArray(continuousNodeArray, bindingContext) {
        // To be used on any nodes that have been rendered by a template and have been inserted into some parent element
        // Walks through continuousNodeArray (which *must* be continuous, i.e., an uninterrupted sequence of sibling nodes, because
        // the algorithm for walking them relies on this), and for each top-level item in the virtual-element sense,
        // (1) Does a regular "applyBindings" to associate bindingContext with this node and to activate any non-memoized bindings
        // (2) Unmemoizes any memos in the DOM subtree (e.g., to activate bindings that had been memoized during template rewriting)

        if (continuousNodeArray.length) {
            var firstNode = continuousNodeArray[0],
                lastNode = continuousNodeArray[continuousNodeArray.length - 1],
                parentNode = firstNode.parentNode,
                provider = ko.bindingProvider['instance'],
                preprocessNode = provider['preprocessNode'];

            if (preprocessNode) {
                invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node, nextNodeInRange) {
                    var nodePreviousSibling = node.previousSibling;
                    var newNodes = preprocessNode.call(provider, node);
                    if (newNodes) {
                        if (node === firstNode)
                            firstNode = newNodes[0] || nextNodeInRange;
                        if (node === lastNode)
                            lastNode = newNodes[newNodes.length - 1] || nodePreviousSibling;
                    }
                });

                // Because preprocessNode can change the nodes, including the first and last nodes, update continuousNodeArray to match.
                // We need the full set, including inner nodes, because the unmemoize step might remove the first node (and so the real
                // first node needs to be in the array).
                continuousNodeArray.length = 0;
                if (!firstNode) { // preprocessNode might have removed all the nodes, in which case there's nothing left to do
                    return;
                }
                if (firstNode === lastNode) {
                    continuousNodeArray.push(firstNode);
                } else {
                    continuousNodeArray.push(firstNode, lastNode);
                    ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
                }
            }

            // Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind)
            // whereas a regular applyBindings won't introduce new memoized nodes
            invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
                if (node.nodeType === 1 || node.nodeType === 8)
                    ko.applyBindings(bindingContext, node);
            });
            invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
                if (node.nodeType === 1 || node.nodeType === 8)
                    ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);
            });

            // Make sure any changes done by applyBindings or unmemoize are reflected in the array
            ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
        }
    }

    function getFirstNodeFromPossibleArray(nodeOrNodeArray) {
        return nodeOrNodeArray.nodeType ? nodeOrNodeArray
                                        : nodeOrNodeArray.length > 0 ? nodeOrNodeArray[0]
                                        : null;
    }

    function executeTemplate(targetNodeOrNodeArray, renderMode, template, bindingContext, options) {
        options = options || {};
        var firstTargetNode = targetNodeOrNodeArray && getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
        var templateDocument = firstTargetNode && firstTargetNode.ownerDocument;
        var templateEngineToUse = (options['templateEngine'] || _templateEngine);
        ko.templateRewriting.ensureTemplateIsRewritten(template, templateEngineToUse, templateDocument);
        var renderedNodesArray = templateEngineToUse['renderTemplate'](template, bindingContext, options, templateDocument);

        // Loosely check result is an array of DOM nodes
        if ((typeof renderedNodesArray.length != "number") || (renderedNodesArray.length > 0 && typeof renderedNodesArray[0].nodeType != "number"))
            throw new Error("Template engine must return an array of DOM nodes");

        var haveAddedNodesToParent = false;
        switch (renderMode) {
            case "replaceChildren":
                ko.virtualElements.setDomNodeChildren(targetNodeOrNodeArray, renderedNodesArray);
                haveAddedNodesToParent = true;
                break;
            case "replaceNode":
                ko.utils.replaceDomNodes(targetNodeOrNodeArray, renderedNodesArray);
                haveAddedNodesToParent = true;
                break;
            case "ignoreTargetNode": break;
            default:
                throw new Error("Unknown renderMode: " + renderMode);
        }

        if (haveAddedNodesToParent) {
            activateBindingsOnContinuousNodeArray(renderedNodesArray, bindingContext);
            if (options['afterRender'])
                ko.dependencyDetection.ignore(options['afterRender'], null, [renderedNodesArray, bindingContext['$data']]);
        }

        return renderedNodesArray;
    }

    function resolveTemplateName(template, data, context) {
        // The template can be specified as:
        if (ko.isObservable(template)) {
            // 1. An observable, with string value
            return template();
        } else if (typeof template === 'function') {
            // 2. A function of (data, context) returning a string
            return template(data, context);
        } else {
            // 3. A string
            return template;
        }
    }

    ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {
        options = options || {};
        if ((options['templateEngine'] || _templateEngine) == undefined)
            throw new Error("Set a template engine before calling renderTemplate");
        renderMode = renderMode || "replaceChildren";

        if (targetNodeOrNodeArray) {
            var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);

            var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation)
            var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;

            return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes
                function () {
                    // Ensure we've got a proper binding context to work with
                    var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))
                        ? dataOrBindingContext
                        : new ko.bindingContext(ko.utils.unwrapObservable(dataOrBindingContext));

                    var templateName = resolveTemplateName(template, bindingContext['$data'], bindingContext),
                        renderedNodesArray = executeTemplate(targetNodeOrNodeArray, renderMode, templateName, bindingContext, options);

                    if (renderMode == "replaceNode") {
                        targetNodeOrNodeArray = renderedNodesArray;
                        firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
                    }
                },
                null,
                { disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: activelyDisposeWhenNodeIsRemoved }
            );
        } else {
            // We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node
            return ko.memoization.memoize(function (domNode) {
                ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode");
            });
        }
    };

    ko.renderTemplateForEach = function (template, arrayOrObservableArray, options, targetNode, parentBindingContext) {
        // Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then
        // activateBindingsCallback for added items, we can store the binding context in the former to use in the latter.
        var arrayItemContext;

        // This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode
        var executeTemplateForArrayItem = function (arrayValue, index) {
            // Support selecting template as a function of the data being rendered
            arrayItemContext = parentBindingContext['createChildContext'](arrayValue, options['as'], function(context) {
                context['$index'] = index;
            });

            var templateName = resolveTemplateName(template, arrayValue, arrayItemContext);
            return executeTemplate(null, "ignoreTargetNode", templateName, arrayItemContext, options);
        }

        // This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode
        var activateBindingsCallback = function(arrayValue, addedNodesArray, index) {
            activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext);
            if (options['afterRender'])
                options['afterRender'](addedNodesArray, arrayValue);
        };

        return ko.dependentObservable(function () {
            var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || [];
            if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
                unwrappedArray = [unwrappedArray];

            // Filter out any entries marked as destroyed
            var filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
                return options['includeDestroyed'] || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
            });

            // Call setDomNodeChildrenFromArrayMapping, ignoring any observables unwrapped within (most likely from a callback function).
            // If the array items are observables, though, they will be unwrapped in executeTemplateForArrayItem and managed within setDomNodeChildrenFromArrayMapping.
            ko.dependencyDetection.ignore(ko.utils.setDomNodeChildrenFromArrayMapping, null, [targetNode, filteredArray, executeTemplateForArrayItem, options, activateBindingsCallback]);

        }, null, { disposeWhenNodeIsRemoved: targetNode });
    };

    var templateComputedDomDataKey = ko.utils.domData.nextKey();
    function disposeOldComputedAndStoreNewOne(element, newComputed) {
        var oldComputed = ko.utils.domData.get(element, templateComputedDomDataKey);
        if (oldComputed && (typeof(oldComputed.dispose) == 'function'))
            oldComputed.dispose();
        ko.utils.domData.set(element, templateComputedDomDataKey, (newComputed && newComputed.isActive()) ? newComputed : undefined);
    }

    ko.bindingHandlers['template'] = {
        'init': function(element, valueAccessor) {
            // Support anonymous templates
            var bindingValue = ko.utils.unwrapObservable(valueAccessor());
            if (typeof bindingValue == "string" || bindingValue['name']) {
                // It's a named template - clear the element
                ko.virtualElements.emptyNode(element);
            } else {
                // It's an anonymous template - store the element contents, then clear the element
                var templateNodes = ko.virtualElements.childNodes(element),
                    container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent
                new ko.templateSources.anonymousTemplate(element)['nodes'](container);
            }
            return { 'controlsDescendantBindings': true };
        },
        'update': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
            var value = valueAccessor(),
                dataValue,
                options = ko.utils.unwrapObservable(value),
                shouldDisplay = true,
                templateComputed = null,
                templateName;

            if (typeof options == "string") {
                templateName = value;
                options = {};
            } else {
                templateName = options['name'];

                // Support "if"/"ifnot" conditions
                if ('if' in options)
                    shouldDisplay = ko.utils.unwrapObservable(options['if']);
                if (shouldDisplay && 'ifnot' in options)
                    shouldDisplay = !ko.utils.unwrapObservable(options['ifnot']);

                dataValue = ko.utils.unwrapObservable(options['data']);
            }

            if ('foreach' in options) {
                // Render once for each data point (treating data set as empty if shouldDisplay==false)
                var dataArray = (shouldDisplay && options['foreach']) || [];
                templateComputed = ko.renderTemplateForEach(templateName || element, dataArray, options, element, bindingContext);
            } else if (!shouldDisplay) {
                ko.virtualElements.emptyNode(element);
            } else {
                // Render once for this single data point (or use the viewModel if no data was provided)
                var innerBindingContext = ('data' in options) ?
                    bindingContext['createChildContext'](dataValue, options['as']) :  // Given an explitit 'data' value, we create a child binding context for it
                    bindingContext;                                                        // Given no explicit 'data' value, we retain the same binding context
                templateComputed = ko.renderTemplate(templateName || element, innerBindingContext, options, element);
            }

            // It only makes sense to have a single template computed per element (otherwise which one should have its output displayed?)
            disposeOldComputedAndStoreNewOne(element, templateComputed);
        }
    };

    // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.
    ko.expressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) {
        var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue);

        if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown'])
            return null; // It looks like a string literal, not an object literal, so treat it as a named template (which is allowed for rewriting)

        if (ko.expressionRewriting.keyValueArrayContainsKey(parsedBindingValue, "name"))
            return null; // Named templates can be rewritten, so return "no error"
        return "This template engine does not support anonymous templates nested within its templates";
    };

    ko.virtualElements.allowedBindings['template'] = true;
})();

ko.exportSymbol('setTemplateEngine', ko.setTemplateEngine);
ko.exportSymbol('renderTemplate', ko.renderTemplate);
// Go through the items that have been added and deleted and try to find matches between them.
ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares) {
    if (left.length && right.length) {
        var failedCompares, l, r, leftItem, rightItem;
        for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {
            for (r = 0; rightItem = right[r]; ++r) {
                if (leftItem['value'] === rightItem['value']) {
                    leftItem['moved'] = rightItem['index'];
                    rightItem['moved'] = leftItem['index'];
                    right.splice(r, 1);         // This item is marked as moved; so remove it from right list
                    failedCompares = r = 0;     // Reset failed compares count because we're checking for consecutive failures
                    break;
                }
            }
            failedCompares += r;
        }
    }
};

ko.utils.compareArrays = (function () {
    var statusNotInOld = 'added', statusNotInNew = 'deleted';

    // Simple calculation based on Levenshtein distance.
    function compareArrays(oldArray, newArray, options) {
        // For backward compatibility, if the third arg is actually a bool, interpret
        // it as the old parameter 'dontLimitMoves'. Newer code should use { dontLimitMoves: true }.
        options = (typeof options === 'boolean') ? { 'dontLimitMoves': options } : (options || {});
        oldArray = oldArray || [];
        newArray = newArray || [];

        if (oldArray.length <= newArray.length)
            return compareSmallArrayToBigArray(oldArray, newArray, statusNotInOld, statusNotInNew, options);
        else
            return compareSmallArrayToBigArray(newArray, oldArray, statusNotInNew, statusNotInOld, options);
    }

    function compareSmallArrayToBigArray(smlArray, bigArray, statusNotInSml, statusNotInBig, options) {
        var myMin = Math.min,
            myMax = Math.max,
            editDistanceMatrix = [],
            smlIndex, smlIndexMax = smlArray.length,
            bigIndex, bigIndexMax = bigArray.length,
            compareRange = (bigIndexMax - smlIndexMax) || 1,
            maxDistance = smlIndexMax + bigIndexMax + 1,
            thisRow, lastRow,
            bigIndexMaxForRow, bigIndexMinForRow;

        for (smlIndex = 0; smlIndex <= smlIndexMax; smlIndex++) {
            lastRow = thisRow;
            editDistanceMatrix.push(thisRow = []);
            bigIndexMaxForRow = myMin(bigIndexMax, smlIndex + compareRange);
            bigIndexMinForRow = myMax(0, smlIndex - 1);
            for (bigIndex = bigIndexMinForRow; bigIndex <= bigIndexMaxForRow; bigIndex++) {
                if (!bigIndex)
                    thisRow[bigIndex] = smlIndex + 1;
                else if (!smlIndex)  // Top row - transform empty array into new array via additions
                    thisRow[bigIndex] = bigIndex + 1;
                else if (smlArray[smlIndex - 1] === bigArray[bigIndex - 1])
                    thisRow[bigIndex] = lastRow[bigIndex - 1];                  // copy value (no edit)
                else {
                    var northDistance = lastRow[bigIndex] || maxDistance;       // not in big (deletion)
                    var westDistance = thisRow[bigIndex - 1] || maxDistance;    // not in small (addition)
                    thisRow[bigIndex] = myMin(northDistance, westDistance) + 1;
                }
            }
        }

        var editScript = [], meMinusOne, notInSml = [], notInBig = [];
        for (smlIndex = smlIndexMax, bigIndex = bigIndexMax; smlIndex || bigIndex;) {
            meMinusOne = editDistanceMatrix[smlIndex][bigIndex] - 1;
            if (bigIndex && meMinusOne === editDistanceMatrix[smlIndex][bigIndex-1]) {
                notInSml.push(editScript[editScript.length] = {     // added
                    'status': statusNotInSml,
                    'value': bigArray[--bigIndex],
                    'index': bigIndex });
            } else if (smlIndex && meMinusOne === editDistanceMatrix[smlIndex - 1][bigIndex]) {
                notInBig.push(editScript[editScript.length] = {     // deleted
                    'status': statusNotInBig,
                    'value': smlArray[--smlIndex],
                    'index': smlIndex });
            } else {
                --bigIndex;
                --smlIndex;
                if (!options['sparse']) {
                    editScript.push({
                        'status': "retained",
                        'value': bigArray[bigIndex] });
                }
            }
        }

        // Set a limit on the number of consecutive non-matching comparisons; having it a multiple of
        // smlIndexMax keeps the time complexity of this algorithm linear.
        ko.utils.findMovesInArrayComparison(notInSml, notInBig, smlIndexMax * 10);

        return editScript.reverse();
    }

    return compareArrays;
})();

ko.exportSymbol('utils.compareArrays', ko.utils.compareArrays);
(function () {
    // Objective:
    // * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes,
    //   map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node
    // * Next time we're given the same combination of things (with the array possibly having mutated), update the container DOM node
    //   so that its children is again the concatenation of the mappings of the array elements, but don't re-map any array elements that we
    //   previously mapped - retain those nodes, and just insert/delete other ones

    // "callbackAfterAddingNodes" will be invoked after any "mapping"-generated nodes are inserted into the container node
    // You can use this, for example, to activate bindings on those nodes.

    function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) {
        // Map this array value inside a dependentObservable so we re-map when any dependency changes
        var mappedNodes = [];
        var dependentObservable = ko.dependentObservable(function() {
            var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || [];

            // On subsequent evaluations, just replace the previously-inserted DOM nodes
            if (mappedNodes.length > 0) {
                ko.utils.replaceDomNodes(mappedNodes, newMappedNodes);
                if (callbackAfterAddingNodes)
                    ko.dependencyDetection.ignore(callbackAfterAddingNodes, null, [valueToMap, newMappedNodes, index]);
            }

            // Replace the contents of the mappedNodes array, thereby updating the record
            // of which nodes would be deleted if valueToMap was itself later removed
            mappedNodes.length = 0;
            ko.utils.arrayPushAll(mappedNodes, newMappedNodes);
        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: function() { return !ko.utils.anyDomNodeIsAttachedToDocument(mappedNodes); } });
        return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };
    }

    var lastMappingResultDomDataKey = ko.utils.domData.nextKey();

    ko.utils.setDomNodeChildrenFromArrayMapping = function (domNode, array, mapping, options, callbackAfterAddingNodes) {
        // Compare the provided array against the previous one
        array = array || [];
        options = options || {};
        var isFirstExecution = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) === undefined;
        var lastMappingResult = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) || [];
        var lastArray = ko.utils.arrayMap(lastMappingResult, function (x) { return x.arrayEntry; });
        var editScript = ko.utils.compareArrays(lastArray, array, options['dontLimitMoves']);

        // Build the new mapping result
        var newMappingResult = [];
        var lastMappingResultIndex = 0;
        var newMappingResultIndex = 0;

        var nodesToDelete = [];
        var itemsToProcess = [];
        var itemsForBeforeRemoveCallbacks = [];
        var itemsForMoveCallbacks = [];
        var itemsForAfterAddCallbacks = [];
        var mapData;

        function itemMovedOrRetained(editScriptIndex, oldPosition) {
            mapData = lastMappingResult[oldPosition];
            if (newMappingResultIndex !== oldPosition)
                itemsForMoveCallbacks[editScriptIndex] = mapData;
            // Since updating the index might change the nodes, do so before calling fixUpContinuousNodeArray
            mapData.indexObservable(newMappingResultIndex++);
            ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode);
            newMappingResult.push(mapData);
            itemsToProcess.push(mapData);
        }

        function callCallback(callback, items) {
            if (callback) {
                for (var i = 0, n = items.length; i < n; i++) {
                    if (items[i]) {
                        ko.utils.arrayForEach(items[i].mappedNodes, function(node) {
                            callback(node, i, items[i].arrayEntry);
                        });
                    }
                }
            }
        }

        for (var i = 0, editScriptItem, movedIndex; editScriptItem = editScript[i]; i++) {
            movedIndex = editScriptItem['moved'];
            switch (editScriptItem['status']) {
                case "deleted":
                    if (movedIndex === undefined) {
                        mapData = lastMappingResult[lastMappingResultIndex];

                        // Stop tracking changes to the mapping for these nodes
                        if (mapData.dependentObservable)
                            mapData.dependentObservable.dispose();

                        // Queue these nodes for later removal
                        nodesToDelete.push.apply(nodesToDelete, ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode));
                        if (options['beforeRemove']) {
                            itemsForBeforeRemoveCallbacks[i] = mapData;
                            itemsToProcess.push(mapData);
                        }
                    }
                    lastMappingResultIndex++;
                    break;

                case "retained":
                    itemMovedOrRetained(i, lastMappingResultIndex++);
                    break;

                case "added":
                    if (movedIndex !== undefined) {
                        itemMovedOrRetained(i, movedIndex);
                    } else {
                        mapData = { arrayEntry: editScriptItem['value'], indexObservable: ko.observable(newMappingResultIndex++) };
                        newMappingResult.push(mapData);
                        itemsToProcess.push(mapData);
                        if (!isFirstExecution)
                            itemsForAfterAddCallbacks[i] = mapData;
                    }
                    break;
            }
        }

        // Call beforeMove first before any changes have been made to the DOM
        callCallback(options['beforeMove'], itemsForMoveCallbacks);

        // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)
        ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);

        // Next add/reorder the remaining items (will include deleted items if there's a beforeRemove callback)
        for (var i = 0, nextNode = ko.virtualElements.firstChild(domNode), lastNode, node; mapData = itemsToProcess[i]; i++) {
            // Get nodes for newly added items
            if (!mapData.mappedNodes)
                ko.utils.extend(mapData, mapNodeAndRefreshWhenChanged(domNode, mapping, mapData.arrayEntry, callbackAfterAddingNodes, mapData.indexObservable));

            // Put nodes in the right place if they aren't there already
            for (var j = 0; node = mapData.mappedNodes[j]; nextNode = node.nextSibling, lastNode = node, j++) {
                if (node !== nextNode)
                    ko.virtualElements.insertAfter(domNode, node, lastNode);
            }

            // Run the callbacks for newly added nodes (for example, to apply bindings, etc.)
            if (!mapData.initialized && callbackAfterAddingNodes) {
                callbackAfterAddingNodes(mapData.arrayEntry, mapData.mappedNodes, mapData.indexObservable);
                mapData.initialized = true;
            }
        }

        // If there's a beforeRemove callback, call it after reordering.
        // Note that we assume that the beforeRemove callback will usually be used to remove the nodes using
        // some sort of animation, which is why we first reorder the nodes that will be removed. If the
        // callback instead removes the nodes right away, it would be more efficient to skip reordering them.
        // Perhaps we'll make that change in the future if this scenario becomes more common.
        callCallback(options['beforeRemove'], itemsForBeforeRemoveCallbacks);

        // Finally call afterMove and afterAdd callbacks
        callCallback(options['afterMove'], itemsForMoveCallbacks);
        callCallback(options['afterAdd'], itemsForAfterAddCallbacks);

        // Store a copy of the array items we just considered so we can difference it next time
        ko.utils.domData.set(domNode, lastMappingResultDomDataKey, newMappingResult);
    }
})();

ko.exportSymbol('utils.setDomNodeChildrenFromArrayMapping', ko.utils.setDomNodeChildrenFromArrayMapping);
ko.nativeTemplateEngine = function () {
    this['allowTemplateRewriting'] = false;
}

ko.nativeTemplateEngine.prototype = new ko.templateEngine();
ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine;
ko.nativeTemplateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options) {
    var useNodesIfAvailable = !(ko.utils.ieVersion < 9), // IE<9 cloneNode doesn't work properly
        templateNodesFunc = useNodesIfAvailable ? templateSource['nodes'] : null,
        templateNodes = templateNodesFunc ? templateSource['nodes']() : null;

    if (templateNodes) {
        return ko.utils.makeArray(templateNodes.cloneNode(true).childNodes);
    } else {
        var templateText = templateSource['text']();
        return ko.utils.parseHtmlFragment(templateText);
    }
};

ko.nativeTemplateEngine.instance = new ko.nativeTemplateEngine();
ko.setTemplateEngine(ko.nativeTemplateEngine.instance);

ko.exportSymbol('nativeTemplateEngine', ko.nativeTemplateEngine);
(function() {
    ko.jqueryTmplTemplateEngine = function () {
        // Detect which version of jquery-tmpl you're using. Unfortunately jquery-tmpl
        // doesn't expose a version number, so we have to infer it.
        // Note that as of Knockout 1.3, we only support jQuery.tmpl 1.0.0pre and later,
        // which KO internally refers to as version "2", so older versions are no longer detected.
        var jQueryTmplVersion = this.jQueryTmplVersion = (function() {
            if (!jQueryInstance || !(jQueryInstance['tmpl']))
                return 0;
            // Since it exposes no official version number, we use our own numbering system. To be updated as jquery-tmpl evolves.
            try {
                if (jQueryInstance['tmpl']['tag']['tmpl']['open'].toString().indexOf('__') >= 0) {
                    // Since 1.0.0pre, custom tags should append markup to an array called "__"
                    return 2; // Final version of jquery.tmpl
                }
            } catch(ex) { /* Apparently not the version we were looking for */ }

            return 1; // Any older version that we don't support
        })();

        function ensureHasReferencedJQueryTemplates() {
            if (jQueryTmplVersion < 2)
                throw new Error("Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.");
        }

        function executeTemplate(compiledTemplate, data, jQueryTemplateOptions) {
            return jQueryInstance['tmpl'](compiledTemplate, data, jQueryTemplateOptions);
        }

        this['renderTemplateSource'] = function(templateSource, bindingContext, options) {
            options = options || {};
            ensureHasReferencedJQueryTemplates();

            // Ensure we have stored a precompiled version of this template (don't want to reparse on every render)
            var precompiled = templateSource['data']('precompiled');
            if (!precompiled) {
                var templateText = templateSource['text']() || "";
                // Wrap in "with($whatever.koBindingContext) { ... }"
                templateText = "{{ko_with $item.koBindingContext}}" + templateText + "{{/ko_with}}";

                precompiled = jQueryInstance['template'](null, templateText);
                templateSource['data']('precompiled', precompiled);
            }

            var data = [bindingContext['$data']]; // Prewrap the data in an array to stop jquery.tmpl from trying to unwrap any arrays
            var jQueryTemplateOptions = jQueryInstance['extend']({ 'koBindingContext': bindingContext }, options['templateOptions']);

            var resultNodes = executeTemplate(precompiled, data, jQueryTemplateOptions);
            resultNodes['appendTo'](document.createElement("div")); // Using "appendTo" forces jQuery/jQuery.tmpl to perform necessary cleanup work

            jQueryInstance['fragments'] = {}; // Clear jQuery's fragment cache to avoid a memory leak after a large number of template renders
            return resultNodes;
        };

        this['createJavaScriptEvaluatorBlock'] = function(script) {
            return "{{ko_code ((function() { return " + script + " })()) }}";
        };

        this['addTemplate'] = function(templateName, templateMarkup) {
            document.write("<script type='text/html' id='" + templateName + "'>" + templateMarkup + "<" + "/script>");
        };

        if (jQueryTmplVersion > 0) {
            jQueryInstance['tmpl']['tag']['ko_code'] = {
                open: "__.push($1 || '');"
            };
            jQueryInstance['tmpl']['tag']['ko_with'] = {
                open: "with($1) {",
                close: "} "
            };
        }
    };

    ko.jqueryTmplTemplateEngine.prototype = new ko.templateEngine();
    ko.jqueryTmplTemplateEngine.prototype.constructor = ko.jqueryTmplTemplateEngine;

    // Use this one by default *only if jquery.tmpl is referenced*
    var jqueryTmplTemplateEngineInstance = new ko.jqueryTmplTemplateEngine();
    if (jqueryTmplTemplateEngineInstance.jQueryTmplVersion > 0)
        ko.setTemplateEngine(jqueryTmplTemplateEngineInstance);

    ko.exportSymbol('jqueryTmplTemplateEngine', ko.jqueryTmplTemplateEngine);
})();
}));
}());
})();

/// Knockout Mapping plugin v2.4.1
/// (c) 2013 Steven Sanderson, Roy Jacobs - http://knockoutjs.com/
/// License: MIT (http://www.opensource.org/licenses/mit-license.php)
(function(e){"function"===typeof require&&"object"===typeof exports&&"object"===typeof module?e(require("knockout"),exports):"function"===typeof define&&define.amd?define(["knockout","exports"],e):e(ko,ko.mapping={})})(function(e,f){function y(b,c){var a,d;for(d in c)if(c.hasOwnProperty(d)&&c[d])if(a=f.getType(b[d]),d&&b[d]&&"array"!==a&&"string"!==a)y(b[d],c[d]);else if("array"===f.getType(b[d])&&"array"===f.getType(c[d])){a=b;for(var e=d,l=b[d],n=c[d],t={},g=l.length-1;0<=g;--g)t[l[g]]=l[g];for(g=
n.length-1;0<=g;--g)t[n[g]]=n[g];l=[];n=void 0;for(n in t)l.push(t[n]);a[e]=l}else b[d]=c[d]}function E(b,c){var a={};y(a,b);y(a,c);return a}function z(b,c){for(var a=E({},b),e=L.length-1;0<=e;e--){var f=L[e];a[f]&&(a[""]instanceof Object||(a[""]={}),a[""][f]=a[f],delete a[f])}c&&(a.ignore=h(c.ignore,a.ignore),a.include=h(c.include,a.include),a.copy=h(c.copy,a.copy),a.observe=h(c.observe,a.observe));a.ignore=h(a.ignore,j.ignore);a.include=h(a.include,j.include);a.copy=h(a.copy,j.copy);a.observe=h(a.observe,
j.observe);a.mappedProperties=a.mappedProperties||{};a.copiedProperties=a.copiedProperties||{};return a}function h(b,c){"array"!==f.getType(b)&&(b="undefined"===f.getType(b)?[]:[b]);"array"!==f.getType(c)&&(c="undefined"===f.getType(c)?[]:[c]);return e.utils.arrayGetDistinctValues(b.concat(c))}function F(b,c,a,d,k,l,n){var t="array"===f.getType(e.utils.unwrapObservable(c));l=l||"";if(f.isMapped(b)){var g=e.utils.unwrapObservable(b)[p];a=E(g,a)}var j=n||k,h=function(){return a[d]&&a[d].create instanceof
Function},x=function(b){var f=G,g=e.dependentObservable;e.dependentObservable=function(a,b,c){c=c||{};a&&"object"==typeof a&&(c=a);var d=c.deferEvaluation,M=!1;c.deferEvaluation=!0;a=new H(a,b,c);if(!d){var g=a,d=e.dependentObservable;e.dependentObservable=H;a=e.isWriteableObservable(g);e.dependentObservable=d;d=H({read:function(){M||(e.utils.arrayRemoveItem(f,g),M=!0);return g.apply(g,arguments)},write:a&&function(a){return g(a)},deferEvaluation:!0});d.__DO=g;a=d;f.push(a)}return a};e.dependentObservable.fn=
H.fn;e.computed=e.dependentObservable;b=e.utils.unwrapObservable(k)instanceof Array?a[d].create({data:b||c,parent:j,skip:N}):a[d].create({data:b||c,parent:j});e.dependentObservable=g;e.computed=e.dependentObservable;return b},u=function(){return a[d]&&a[d].update instanceof Function},v=function(b,f){var g={data:f||c,parent:j,target:e.utils.unwrapObservable(b)};e.isWriteableObservable(b)&&(g.observable=b);return a[d].update(g)};if(n=I.get(c))return n;d=d||"";if(t){var t=[],s=!1,m=function(a){return a};
a[d]&&a[d].key&&(m=a[d].key,s=!0);e.isObservable(b)||(b=e.observableArray([]),b.mappedRemove=function(a){var c="function"==typeof a?a:function(b){return b===m(a)};return b.remove(function(a){return c(m(a))})},b.mappedRemoveAll=function(a){var c=C(a,m);return b.remove(function(a){return-1!=e.utils.arrayIndexOf(c,m(a))})},b.mappedDestroy=function(a){var c="function"==typeof a?a:function(b){return b===m(a)};return b.destroy(function(a){return c(m(a))})},b.mappedDestroyAll=function(a){var c=C(a,m);return b.destroy(function(a){return-1!=
e.utils.arrayIndexOf(c,m(a))})},b.mappedIndexOf=function(a){var c=C(b(),m);a=m(a);return e.utils.arrayIndexOf(c,a)},b.mappedGet=function(a){return b()[b.mappedIndexOf(a)]},b.mappedCreate=function(a){if(-1!==b.mappedIndexOf(a))throw Error("There already is an object with the key that you specified.");var c=h()?x(a):a;u()&&(a=v(c,a),e.isWriteableObservable(c)?c(a):c=a);b.push(c);return c});n=C(e.utils.unwrapObservable(b),m).sort();g=C(c,m);s&&g.sort();s=e.utils.compareArrays(n,g);n={};var J,A=e.utils.unwrapObservable(c),
y={},z=!0,g=0;for(J=A.length;g<J;g++){var r=m(A[g]);if(void 0===r||r instanceof Object){z=!1;break}y[r]=A[g]}var A=[],B=0,g=0;for(J=s.length;g<J;g++){var r=s[g],q,w=l+"["+g+"]";switch(r.status){case "added":var D=z?y[r.value]:K(e.utils.unwrapObservable(c),r.value,m);q=F(void 0,D,a,d,b,w,k);h()||(q=e.utils.unwrapObservable(q));w=O(e.utils.unwrapObservable(c),D,n);q===N?B++:A[w-B]=q;n[w]=!0;break;case "retained":D=z?y[r.value]:K(e.utils.unwrapObservable(c),r.value,m);q=K(b,r.value,m);F(q,D,a,d,b,w,
k);w=O(e.utils.unwrapObservable(c),D,n);A[w]=q;n[w]=!0;break;case "deleted":q=K(b,r.value,m)}t.push({event:r.status,item:q})}b(A);a[d]&&a[d].arrayChanged&&e.utils.arrayForEach(t,function(b){a[d].arrayChanged(b.event,b.item)})}else if(P(c)){b=e.utils.unwrapObservable(b);if(!b){if(h())return s=x(),u()&&(s=v(s)),s;if(u())return v(s);b={}}u()&&(b=v(b));I.save(c,b);if(u())return b;Q(c,function(d){var f=l.length?l+"."+d:d;if(-1==e.utils.arrayIndexOf(a.ignore,f))if(-1!=e.utils.arrayIndexOf(a.copy,f))b[d]=
c[d];else if("object"!=typeof c[d]&&"array"!=typeof c[d]&&0<a.observe.length&&-1==e.utils.arrayIndexOf(a.observe,f))b[d]=c[d],a.copiedProperties[f]=!0;else{var g=I.get(c[d]),k=F(b[d],c[d],a,d,b,f,b),g=g||k;if(0<a.observe.length&&-1==e.utils.arrayIndexOf(a.observe,f))b[d]=g(),a.copiedProperties[f]=!0;else{if(e.isWriteableObservable(b[d])){if(g=e.utils.unwrapObservable(g),b[d]()!==g)b[d](g)}else g=void 0===b[d]?g:e.utils.unwrapObservable(g),b[d]=g;a.mappedProperties[f]=!0}}})}else switch(f.getType(c)){case "function":u()?
e.isWriteableObservable(c)?(c(v(c)),b=c):b=v(c):b=c;break;default:if(e.isWriteableObservable(b))return q=u()?v(b):e.utils.unwrapObservable(c),b(q),q;h()||u();b=h()?x():e.observable(e.utils.unwrapObservable(c));u()&&b(v(b))}return b}function O(b,c,a){for(var d=0,e=b.length;d<e;d++)if(!0!==a[d]&&b[d]===c)return d;return null}function R(b,c){var a;c&&(a=c(b));"undefined"===f.getType(a)&&(a=b);return e.utils.unwrapObservable(a)}function K(b,c,a){b=e.utils.unwrapObservable(b);for(var d=0,f=b.length;d<
f;d++){var l=b[d];if(R(l,a)===c)return l}throw Error("When calling ko.update*, the key '"+c+"' was not found!");}function C(b,c){return e.utils.arrayMap(e.utils.unwrapObservable(b),function(a){return c?R(a,c):a})}function Q(b,c){if("array"===f.getType(b))for(var a=0;a<b.length;a++)c(a);else for(a in b)c(a)}function P(b){var c=f.getType(b);return("object"===c||"array"===c)&&null!==b}function T(){var b=[],c=[];this.save=function(a,d){var f=e.utils.arrayIndexOf(b,a);0<=f?c[f]=d:(b.push(a),c.push(d))};
this.get=function(a){a=e.utils.arrayIndexOf(b,a);return 0<=a?c[a]:void 0}}function S(){var b={},c=function(a){var c;try{c=a}catch(e){c="$$$"}a=b[c];void 0===a&&(a=new T,b[c]=a);return a};this.save=function(a,b){c(a).save(a,b)};this.get=function(a){return c(a).get(a)}}var p="__ko_mapping__",H=e.dependentObservable,B=0,G,I,L=["create","update","key","arrayChanged"],N={},x={include:["_destroy"],ignore:[],copy:[],observe:[]},j=x;f.isMapped=function(b){return(b=e.utils.unwrapObservable(b))&&b[p]};f.fromJS=
function(b){if(0==arguments.length)throw Error("When calling ko.fromJS, pass the object you want to convert.");try{B++||(G=[],I=new S);var c,a;2==arguments.length&&(arguments[1][p]?a=arguments[1]:c=arguments[1]);3==arguments.length&&(c=arguments[1],a=arguments[2]);a&&(c=E(c,a[p]));c=z(c);var d=F(a,b,c);a&&(d=a);if(!--B)for(;G.length;){var e=G.pop();e&&(e(),e.__DO.throttleEvaluation=e.throttleEvaluation)}d[p]=E(d[p],c);return d}catch(f){throw B=0,f;}};f.fromJSON=function(b){var c=e.utils.parseJson(b);
arguments[0]=c;return f.fromJS.apply(this,arguments)};f.updateFromJS=function(){throw Error("ko.mapping.updateFromJS, use ko.mapping.fromJS instead. Please note that the order of parameters is different!");};f.updateFromJSON=function(){throw Error("ko.mapping.updateFromJSON, use ko.mapping.fromJSON instead. Please note that the order of parameters is different!");};f.toJS=function(b,c){j||f.resetDefaultOptions();if(0==arguments.length)throw Error("When calling ko.mapping.toJS, pass the object you want to convert.");
if("array"!==f.getType(j.ignore))throw Error("ko.mapping.defaultOptions().ignore should be an array.");if("array"!==f.getType(j.include))throw Error("ko.mapping.defaultOptions().include should be an array.");if("array"!==f.getType(j.copy))throw Error("ko.mapping.defaultOptions().copy should be an array.");c=z(c,b[p]);return f.visitModel(b,function(a){return e.utils.unwrapObservable(a)},c)};f.toJSON=function(b,c){var a=f.toJS(b,c);return e.utils.stringifyJson(a)};f.defaultOptions=function(){if(0<arguments.length)j=
arguments[0];else return j};f.resetDefaultOptions=function(){j={include:x.include.slice(0),ignore:x.ignore.slice(0),copy:x.copy.slice(0)}};f.getType=function(b){if(b&&"object"===typeof b){if(b.constructor===Date)return"date";if(b.constructor===Array)return"array"}return typeof b};f.visitModel=function(b,c,a){a=a||{};a.visitedObjects=a.visitedObjects||new S;var d,k=e.utils.unwrapObservable(b);if(P(k))a=z(a,k[p]),c(b,a.parentName),d="array"===f.getType(k)?[]:{};else return c(b,a.parentName);a.visitedObjects.save(b,
d);var l=a.parentName;Q(k,function(b){if(!(a.ignore&&-1!=e.utils.arrayIndexOf(a.ignore,b))){var j=k[b],g=a,h=l||"";"array"===f.getType(k)?l&&(h+="["+b+"]"):(l&&(h+="."),h+=b);g.parentName=h;if(!(-1===e.utils.arrayIndexOf(a.copy,b)&&-1===e.utils.arrayIndexOf(a.include,b)&&k[p]&&k[p].mappedProperties&&!k[p].mappedProperties[b]&&k[p].copiedProperties&&!k[p].copiedProperties[b]&&"array"!==f.getType(k)))switch(f.getType(e.utils.unwrapObservable(j))){case "object":case "array":case "undefined":g=a.visitedObjects.get(j);
d[b]="undefined"!==f.getType(g)?g:f.visitModel(j,c,a);break;default:d[b]=c(j,a.parentName)}}});return d}});

ko.bindingHandlers.orderable = {
    getProperty: function(o, s) {
        // copied from http://stackoverflow.com/questions/6491463/accessing-nested-javascript-objects-with-string-key
        s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
        s = s.replace(/^\./, '');           // strip a leading dot
        var a = s.split('.');
        while (a.length) {
            var n = a.shift();
            if (n in o) {
                o = o[n];
            } else {
                return;
            }
        }
        return o;
    },

    compare: function (left, right) {
        if (typeof left === 'string' || typeof right === 'string') {
            return left.localeCompare(right);
        }
        if (left > right)
            return 1;

        return left < right ? -1 : 0;
    },

    sort: function (viewModel, collection, field) {
        //make sure we sort only once and not for every binding set on table header
        if (viewModel[collection].orderField() == field) {
            viewModel[collection].sort(function (left, right) {
                var left_field = ko.bindingHandlers.orderable.getProperty(left, field);
                var right_field = ko.bindingHandlers.orderable.getProperty(right, field);
                var left_val  = (typeof  left_field === 'function') ?  left_field() :  left_field;
                    right_val = (typeof right_field === 'function') ? right_field() : right_field;
                if (viewModel[collection].orderDirection() == "desc") {
                    return ko.bindingHandlers.orderable.compare(right_val, left_val);
                } else {
                    return ko.bindingHandlers.orderable.compare(left_val, right_val);
                }
            });
        }
    },

    init: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
        //get provided options
        var collection = valueAccessor().collection;
        var field = valueAccessor().field;

        //add a few observables to ViewModel to track order field and direction
        if (viewModel[collection].orderField == undefined) {
            viewModel[collection].orderField = ko.observable();
        }
        if (viewModel[collection].orderDirection == undefined) {
            viewModel[collection].orderDirection = ko.observable("asc");
        }

        var defaultField = valueAccessor().defaultField;
        var defaultDirection = valueAccessor().defaultDirection || "asc";
        if (defaultField) {
            viewModel[collection].orderField(field);            
            viewModel[collection].orderDirection(defaultDirection);
            ko.bindingHandlers.orderable.sort(viewModel, collection, field);
        }

        //set order observables on table header click
        $(element).click(function (e) {
            e.preventDefault();
            
            //flip sort direction if current sort field is clicked again
            if (viewModel[collection].orderField() == field) {
                if (viewModel[collection].orderDirection() == "asc") {
                    viewModel[collection].orderDirection("desc");
                } else {
                    viewModel[collection].orderDirection("asc");
                }
            }
            
            viewModel[collection].orderField(field);
        });

        //order records when observables changes, so ordering can be changed programmatically
        viewModel[collection].orderField.subscribe(function () {
            ko.bindingHandlers.orderable.sort(viewModel, collection, field);
        });
        viewModel[collection].orderDirection.subscribe(function () {
            ko.bindingHandlers.orderable.sort(viewModel, collection, field);
        });
    },

    update: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
        //get provided options
        var collection = valueAccessor().collection;
        var field = valueAccessor().field;
        var isOrderedByThisField = viewModel[collection].orderField() == field;
            
        //apply css binding programmatically
        ko.bindingHandlers.css.update(
            element,
            function () {
                return {
                    sorted: isOrderedByThisField,
                    asc: isOrderedByThisField && viewModel[collection].orderDirection() == "asc",
                    desc: isOrderedByThisField && viewModel[collection].orderDirection() == "desc"
                };
            },
            allBindingsAccessor,
            viewModel,
            bindingContext
        );
    }
};

/*global ko, jQuery, define, document, window*/
// Copyright 2012 Sune Simonsen
// https://github.com/One-com/knockout.autocomplete
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

(function (factory) {
    if (typeof exports === 'object') {
        module.exports = factory(require('knockout'), require('jquery'));
    } else if (typeof define === "function" && define.amd) {
        // AMD anonymous module with hard-coded dependency on "knockout"
        define(["knockout", "jquery"], factory);
    } else {
        // <script> tag: use the global `ko` and `jQuery`
        factory(ko, jQuery);
    }
})(function (ko, $) {
    // Safari mobile detection
    var ua = navigator.userAgent;
    var safari = /safari/i.test(ua);
    var iphone = /\(iphone;/i.test(ua);
    var ipad = /\(ipad;/i.test(ua);
    var mobileSafari = safari && (ipad  || iphone);

    var utils = ko.utils;
    var triggerEvent = utils.triggerEvent;
    var unwrapObservable = utils.unwrapObservable;
    var arrayMap = utils.arrayMap;
    var arrayFilter = utils.arrayFilter;

    var keys = {
        escape: 27,
        up: 38,
        down: 40,
        pageUp: 33,
        pageDown: 34,
        enter: 13,
        tab: 9,
        shift: 16
    };

    var defaultOptions = {
        minLength: 1,
        maxItems: 8,
        separators: null,
        format: function (item) {
            return item.toString();
        }
    };

    function ScrollPane(container) {
        this.container = $(container);
    }

    function top(element) {
        return $(element).offset().top;
    }

    function bottom(element) {
        return top(element) + $(element).outerHeight();
    }

    ScrollPane.prototype.alignWithTop = function (element) {
        this.container.scrollTop(this.container.scrollTop() +
            top(element) -
            top(this.container));
    };

    ScrollPane.prototype.alignWithBottom = function (element) {
        this.container.scrollTop(this.container.scrollTop() +
            bottom(element) -
            bottom(this.container));
    };

    ScrollPane.prototype.isAboveScrollArea = function (element) {
        return top(element) < top(this.container);
    };

    ScrollPane.prototype.isBelowScrollArea = function (element) {
        return bottom(element) > bottom(this.container);
    };

    ScrollPane.prototype.scrollIntoView = function (element) {
        if (this.isAboveScrollArea(element)) {
            this.alignWithTop(element);
        } else if (this.isBelowScrollArea(element)) {
            this.alignWithBottom(element);
        }
    };

    ko.bindingHandlers.autocomplete = {
        init: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
            var value = valueAccessor();
            var options = unwrapObservable(value);

            var subscriptions = [];

            var $element = $(element);
            var $window = $(window);

            var $dropdown = $('<ul class="knockout-autocomplete menu scrollable popup-container"></ul>');
            if (options.className) {
                $dropdown.addClass(options.className);
            }
            var $container;
            if (options.target) {
                $container = $('#' + options.target);
                $dropdown.appendTo($container);
            } else if (options.after) {
                $container = $dropdown;
                $element.after($dropdown);
                $dropdown.addClass('after-menu');
            } else {
                $container = $dropdown;
                $dropdown.appendTo('body');
            }
            $container.hide();
            $dropdown.hide();

            ko.utils.domData.set($dropdown[0], 'anchor', {
                $element: $element,
                $popupHolder: $dropdown
            });

            var format = options.format || defaultOptions.format;
            var maxItems = options.maxItems || defaultOptions.maxItems;
            var minLength = typeof options.minLength === 'number' ? options.minLength : defaultOptions.minLength;
            var separators = options.separators || defaultOptions.separators;
            separators = separators && new RegExp('[' + separators + ']');

            var floatingMenu = !options.target && !options.after;
            $dropdown.toggleClass('floating-menu', floatingMenu);

            options.onSelect = options.onSelect || function (item) {
                return item.toString();
            };

            function fireOnSelect() {
                var newValue = options.onSelect.apply(null, arguments) || '';
                element.value = newValue;
                triggerEvent(element, 'change');
                query(newValue);
                menuShown(false);
            }

            var query = ko.isObservable(options.query) ? options.query : ko.observable('');

            var selectedIndex = -1;

            var suggestions = ko.computed(function () {
                var data = unwrapObservable(options.data);
                var queryText = (unwrapObservable(query) || '').trim().toLowerCase();
                if (queryText.length < minLength) {
                    return [];
                } else {
                    var matches;
                    if (options.noFilter) {
                        matches = data;
                    } else {
                        matches = utils.arrayFilter(data, function (item) {
                            var label = format(item).toLowerCase();
                            var offset = label.indexOf(queryText);
                            return offset !== -1;
                        }).slice(0, maxItems);
                    }
                    return arrayMap(matches, function (item) {
                        var label = format(item);
                        var suggestion = {
                            item: item,
                            query: queryText,
                            label: label
                        };
                        return suggestion;
                    });
                }
            });
            subscriptions.push(suggestions);

            var renderSuggestion = typeof options.renderSuggestion === 'function' ?
                function (completionItem, index) {
                    var $result = $('<li>').append(options.renderSuggestion(completionItem));
                    $result.attr('data-index', index);
                    return $result;
                } :
                function (completionItem, index) {
                    var offset = completionItem.label.toLowerCase().indexOf(completionItem.query);
                    var before = completionItem.label.substring(0, offset);
                    var match = completionItem.label.substring(offset, offset + completionItem.query.length);
                    var after = completionItem.label.substring(offset + completionItem.query.length);
                    var $result = $(
                        '<li>' +
                        '<span class="before"></span>' +
                        '<strong class="match"></strong>' +
                        '<span class="after"></span>' +
                        '</li>'
                    );

                    $result.attr('data-index', index);
                    $('.before', $result).text(before);
                    $('.match', $result).text(match);
                    $('.after', $result).text(after);

                    return $result;
                };

            function wrapIndex(index, length) {
                if (index < 0) {
                    return Math.max(0, suggestions().length - 1);
                }
                if (suggestions().length <= index) {
                    return 0;
                }
                return index;
            }

            function moveSelection(fromIndex, toIndex) {
                toIndex = wrapIndex(toIndex);
                var toElement = $dropdown.children()[toIndex];
                var hasSelection = fromIndex !== -1;
                if (hasSelection) {
                    var fromElement = $dropdown.children()[fromIndex];

                    $(fromElement).toggleClass('selected', false);
                }

                $(toElement).toggleClass('selected', true);

                selectedIndex = toIndex;

                var scrollPane = new ScrollPane($dropdown);
                scrollPane.scrollIntoView(toElement);

                return hasSelection;
            }

            function selectPrevious() {
                if (!menuShown()) {
                    menuShown(true);
                    if (selectedIndex === 0) {
                        moveSelection(selectedIndex, suggestions().length - 1);
                    }
                } else if (selectedIndex !== -1) {
                    var i = selectedIndex;
                    moveSelection(i, i - 1);
                }
                return false;
            }

            function selectNext() {
                if (!menuShown()) {
                    menuShown(true);
                } else if (selectedIndex !== -1) {
                    var i = selectedIndex;
                    return moveSelection(i, i + 1);
                }

                return false;
            }

            function selectSuggestion(index) {
                return moveSelection(selectedIndex, index);
            }

            function renderSuggestions($target, suggestions) {
                return suggestions.map(renderSuggestion);
            }

            function freeTextSelect() {
                var value = element.value;
                var texts = value ? value.split(separators) : [];
                texts = arrayMap(texts, function (text) {
                    return text.trim();
                });
                texts = arrayFilter(texts, function (text) {
                    return text.length > 0;
                });
                fireOnSelect(texts, justPasted);
            }

            function selectItem(item) {
                fireOnSelect(separators ? [item] : item);
                if (options.target) {
                    setTimeout(function () {
                        element.scrollIntoView(false);
                    }, 1);
                }
            }

            function select() {
                var items = suggestions();
                var i = selectedIndex;
                var hasSelection = i !== -1;
                if (hasSelection) {
                    selectItem(items[i].item);
                    return true;
                } else if (separators) {
                    freeTextSelect();
                    return true;
                }
            }

            function preventDefault(e) {
                if (e.preventDefault) { e.preventDefault(); }
                return false;
            }

            var justPasted = false;
            $element.on("paste", function (e) {
                if (window.clipboardData) {
                    // IE
                    var clipped = window.clipboardData.getData('Text');
                    clipped = clipped.replace(/(\r\n|\n|\r)/gm, " "); //replace newlines with spaces
                    $(this).val(clipped);
                    return false; //cancel the pasting event
                }
                justPasted = true;
            });

            var keyClose = false;

            $element.on("keydown", function (e) {
                if (e.ctrlKey || e.metaKey || e.altKey || e.shiftKey) {
                    // This is a modified key event. Don't react to those.
                    return true;
                }
                switch (e.which) {
                    case keys.up:
                        if (selectPrevious()) {
                            return preventDefault(e);
                        }
                        break;
                    case keys.down:
                        if (selectNext()) {
                            return preventDefault(e);
                        }
                        break;
                    case keys.enter:
                        if (select()) {
                            return preventDefault(e);
                        }
                        break;
                    case keys.tab:
                        select();
                        break;
                    case keys.escape:
                        var isMenuShown = menuShown();
                        var bubble = !isMenuShown || preventDefault(e);
                        if (isMenuShown) {
                            menuShown(false);
                        } else {
                            keyClose = true;
                            $element.blur();
                        }
                        return bubble;
                }
                return true;
            });

            $element.on("keyup", function (e) {
                keyClose = false;
                if (justPasted || (separators && separators.test(element.value))) {
                    freeTextSelect();
                    justPasted = false;
                    return;
                }

                var inputKey = Object.keys(keys).every(function (key) {
                    return e.which !== keys[key];
                });

                if (inputKey) {
                    var text = element.value;
                    query(text);
                }
            });

            var mouseInDropdown = false;

            function mouseEnterDropdown() {
                mouseInDropdown = true;
            }

            function mouseLeaveDropdown() {
                mouseInDropdown = false;
            }

            var menuShown = ko.computed({
                read: function () {
                    return this.state();
                },
                write: function (value) {
                    if (value) {
                        if (suggestions().length) {
                            if (!this.state()) {
                                $dropdown.on('mouseenter', mouseEnterDropdown)
                                    .on('mouseleave', mouseLeaveDropdown);
                            }
                            this.state(true);
                            updateVisibilityOption(true);
                        }
                    } else {
                        if (!options.target || options.minLength > 0) {
                            this.state(false);
                            updateVisibilityOption(false);
                            $dropdown.off('mouseenter', mouseEnterDropdown)
                                .off('mouseleave', mouseLeaveDropdown);
                        }
                    }
                }
            }, { state: ko.observable(false) });

            function updateVisibilityOption(value) {
                if (ko.isObservable(options.visible) &&
                    options.visible.peek() !== value) {
                    options.visible(value);
                }
            }

            if (ko.isObservable(options.visible)) {
                menuShown(options.visible());
                subscriptions.push(options.visible.subscribe(function (visible) {
                    if (visible && query() !== '') {
                        var currentSuggestion = suggestions();
                        var currentSelectedIndex = selectedIndex;
                        query('');
                        if (currentSuggestion.length > 0) {
                            var allSuggestions = suggestions();
                            var newSelectedIndex = arrayMap(allSuggestions, function (suggestion) {
                                return suggestion.label;
                            }).indexOf(currentSuggestion[0].label);
                            moveSelection(currentSelectedIndex, newSelectedIndex);
                        }
                    }
                    menuShown(visible);
                }));
            }

            subscriptions.push(menuShown.subscribe(function (value) {
                if (value) {
                    $dropdown.show();
                    $container.show();
                    if (floatingMenu) {
                        positionMenu();
                    }
                } else {
                    $container.hide();
                    $dropdown.hide();
                }
            }));

            if (floatingMenu) {
                $window.on('scroll.autocomplete', positionMenu);
                $window.on('resize.autocomplete', positionMenu);
                $dropdown.on('scroll.autocomplete', positionMenu);
            }

            $element.on('blur.autocomplete', function (e) {
                if (menuShown() && mouseInDropdown && !keyClose) {
                    // IE blurs the $element when clicking on the scroll bar.
                    // To ensure the dropdown does not close, we refocus the
                    // $element, when not closed intentionally by key press.
                    e.preventDefault();
                    $element.focus();
                    return false;
                }
                menuShown(false);
                mouseInDropdown = false;
                if (query() !== '') {
                    setTimeout(function () {
                        $(':focus').first().each(function (i, el) {
                            if ($dropdown.has(el).length > 0) {
                                el.scrollIntoView(false);
                            }
                        });
                    }, 10);
                }
            });

            var $highlightedElements;
            var moves;

            function handleTouchStart(e) {
                moves = 0;
                var $target = $(e.target);
                $highlightedElements = $target.closest('li');
                $('li', $dropdown).removeClass('touching');
                setTimeout(function () {
                    if ($highlightedElements) {
                        $highlightedElements.addClass('touching');
                    }
                }, 50);
                if (e.stopPropagation) {
                    e.stopPropagation();
                }

                return true;
            }

            function handleTouchMove(e) {
                moves += 1;
                if ($highlightedElements) {
                    $highlightedElements.removeClass('touching');
                }

                if (e.stopPropagation) {
                    e.stopPropagation();
                }

                return true;
            }

            function handleTouchEnd(e) {
                setTimeout(function () {
                    if ($highlightedElements) {
                        $highlightedElements.removeClass('touching');
                        $highlightedElements = null;
                    }
                }, 300);

                if (moves > 1) {
                    return true;
                }

                var targetIndex = $(e.target).closest('li').attr('data-index');
                var item = suggestions()[targetIndex];
                selectItem(item.item);

                if (e.stopPropagation) {
                    e.stopPropagation();
                }

                return preventDefault(e);
            }

            function handleMouseEnter(e) {
                var index = $(this).data('index');
                moveSelection(selectedIndex, index);
            }

            function handleMouseDown(e) {
                if (e.type === 'mousedown' && e.which !== 1) {
                    return false;
                }

                var targetIndex = $(e.target).closest('li').attr('data-index');
                var item = suggestions()[targetIndex];
                selectItem(item.item);
                if (e.stopPropagation) {
                    e.stopPropagation();
                }
                return preventDefault(e);
            }

            $dropdown.on('touchstart', 'li', handleTouchStart);
            $dropdown.on('touchmove', 'li', handleTouchMove);
            $dropdown.on('touchend', 'li', handleTouchEnd);

            $dropdown.on('mouseenter', 'li', handleMouseEnter);
            $dropdown.on('mousedown', 'li', handleMouseDown);

            function positionMenu() {
                var offset = $element.offset();
                var elementHeight = $element.outerHeight();
                var elementBottom = offset.top + elementHeight;

                var windowHeight = $window.height();
                var spaceAbove = offset.top;
                var spaceBelow = windowHeight - elementBottom;

                $dropdown.css('bottom', 'auto');
                var dropdownHeight = $dropdown.outerHeight();
                var dropdownWidth = $dropdown.outerWidth();
                var top = elementHeight + offset.top;
                var left = offset.left;
                var right = left + dropdownWidth;
                var bottom = null;

                if ((mobileSafari && spaceBelow < 600) || (dropdownHeight > spaceBelow)) {
                    // Place above
                    top = offset.top - dropdownHeight - 5;
                }

                if (right > $window.width()) {
                    left = Math.max($window.width() - dropdownWidth, 0);
                } else {
                    left -= document.body.scrollLeft;
                }

                // Constrain the menu to the viewport
                if (top < document.body.scrollTop) {
                    // constrained by bottom
                    top = document.body.scrollTop;
                    bottom = $window.height() - (offset.top - 5);
                } else {
                    top -= document.body.scrollTop;
                }

                if (top + dropdownHeight > windowHeight) {
                    // constrained by bottom
                    bottom = 0;
                }

                $dropdown.css('top', top + 'px');
                $dropdown.css('left', left + 'px');
                if (bottom !== null) {
                    $dropdown.css('overflow', 'auto');
                    $dropdown.css('bottom', bottom + 'px');
                }
            }

            subscriptions.push(suggestions.subscribe(function (newValue) {
                selectedIndex = -1;
                $dropdown.empty();
                if (newValue.length) {
                    $dropdown.append(renderSuggestions($dropdown, newValue));
                    selectSuggestion(0);
                    if (floatingMenu) {
                        positionMenu();
                    }
                    menuShown(true);
                } else {
                    menuShown(false);
                }
            }));

            if (suggestions().length) {
                $dropdown.append(renderSuggestions($dropdown, suggestions()));
                selectSuggestion(0);
            }

            if (options.target && options.minLength === 0) {
                menuShown(true);
            }

            utils.domNodeDisposal.addDisposeCallback(element, function () {
                $window.off('scroll.autocomplete', positionMenu);
                $window.off('resize.autocomplete', positionMenu);
                $dropdown.off('scroll.autocomplete', positionMenu);

                $dropdown.off('touchstart', 'li', handleTouchStart);
                $dropdown.off('touchmove', 'li', handleTouchMove);
                $dropdown.off('touchend', 'li', handleTouchEnd);

                $dropdown.off('mouseenter', 'li', handleMouseEnter);
                $dropdown.off('mousedown', 'li', handleMouseDown);

                query('');
                $dropdown.remove();
                subscriptions.forEach(function (subscription) {
                    subscription.dispose();
                });
            });

        }
    };
});

/*!
 * typeahead.js 0.11.1
 * https://github.com/twitter/typeahead.js
 * Copyright 2013-2015 Twitter, Inc. and other contributors; Licensed MIT
 */

!function(a,b){"function"==typeof define&&define.amd?define("bloodhound",["jquery"],function(c){return a.Bloodhound=b(c)}):"object"==typeof exports?module.exports=b(require("jquery")):a.Bloodhound=b(jQuery)}(this,function(a){var b=function(){"use strict";return{isMsie:function(){return/(msie|trident)/i.test(navigator.userAgent)?navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2]:!1},isBlankString:function(a){return!a||/^\s*$/.test(a)},escapeRegExChars:function(a){return a.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&")},isString:function(a){return"string"==typeof a},isNumber:function(a){return"number"==typeof a},isArray:a.isArray,isFunction:a.isFunction,isObject:a.isPlainObject,isUndefined:function(a){return"undefined"==typeof a},isElement:function(a){return!(!a||1!==a.nodeType)},isJQuery:function(b){return b instanceof a},toStr:function(a){return b.isUndefined(a)||null===a?"":a+""},bind:a.proxy,each:function(b,c){function d(a,b){return 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a=b.bind(this._onBlur,this),c=b.bind(this._onFocus,this),d=b.bind(this._onKeydown,this),e=b.bind(this._onInput,this),this.$input.on("blur.tt",a).on("focus.tt",c).on("keydown.tt",d),!b.isMsie()||b.isMsie()>9?this.$input.on("input.tt",e):this.$input.on("keydown.tt keypress.tt cut.tt paste.tt",function(a){h[a.which||a.keyCode]||b.defer(b.bind(f._onInput,f,a))}),this},focus:function(){this.$input.focus()},blur:function(){this.$input.blur()},getLangDir:function(){return this.dir},getQuery:function(){return this.query||""},setQuery:function(a,b){this.setInputValue(a),this._setQuery(a,b)},hasQueryChangedSinceLastFocus:function(){return this.query!==this.queryWhenFocused},getInputValue:function(){return this.$input.val()},setInputValue:function(a){this.$input.val(a),this.clearHintIfInvalid(),this._checkLanguageDirection()},resetInputValue:function(){this.setInputValue(this.query)},getHint:function(){return this.$hint.val()},setHint:function(a){this.$hint.val(a)},clearHint:function(){this.setHint("")},clearHintIfInvalid:function(){var a,b,c,d;a=this.getInputValue(),b=this.getHint(),c=a!==b&&0===b.indexOf(a),d=""!==a&&c&&!this.hasOverflow(),!d&&this.clearHint()},hasFocus:function(){return this.$input.is(":focus")},hasOverflow:function(){var a=this.$input.width()-2;return this.$overflowHelper.text(this.getInputValue()),this.$overflowHelper.width()>=a},isCursorAtEnd:function(){var a,c,d;return a=this.$input.val().length,c=this.$input[0].selectionStart,b.isNumber(c)?c===a:document.selection?(d=document.selection.createRange(),d.moveStart("character",-a),a===d.text.length):!0},destroy:function(){this.$hint.off(".tt"),this.$input.off(".tt"),this.$overflowHelper.remove(),this.$hint=this.$input=this.$overflowHelper=a("<div>")}}),c}(),h=function(){"use strict";function c(c,e){c=c||{},c.templates=c.templates||{},c.templates.notFound=c.templates.notFound||c.templates.empty,c.source||a.error("missing source"),c.node||a.error("missing node"),c.name&&!h(c.name)&&a.error("invalid dataset name: "+c.name),e.mixin(this),this.highlight=!!c.highlight,this.name=c.name||j(),this.limit=c.limit||5,this.displayFn=d(c.display||c.displayKey),this.templates=g(c.templates,this.displayFn),this.source=c.source.__ttAdapter?c.source.__ttAdapter():c.source,this.async=b.isUndefined(c.async)?this.source.length>2:!!c.async,this._resetLastSuggestion(),this.$el=a(c.node).addClass(this.classes.dataset).addClass(this.classes.dataset+"-"+this.name)}function d(a){function c(b){return b[a]}return a=a||b.stringify,b.isFunction(a)?a:c}function g(c,d){function e(b){return a("<div>").text(d(b))}return{notFound:c.notFound&&b.templatify(c.notFound),pending:c.pending&&b.templatify(c.pending),header:c.header&&b.templatify(c.header),footer:c.footer&&b.templatify(c.footer),suggestion:c.suggestion||e}}function h(a){return/^[_a-zA-Z0-9-]+$/.test(a)}var i,j;return i={val:"tt-selectable-display",obj:"tt-selectable-object"},j=b.getIdGenerator(),c.extractData=function(b){var c=a(b);return c.data(i.obj)?{val:c.data(i.val)||"",obj:c.data(i.obj)||null}:null},b.mixin(c.prototype,e,{_overwrite:function(a,b){b=b||[],b.length?this._renderSuggestions(a,b):this.async&&this.templates.pending?this._renderPending(a):!this.async&&this.templates.notFound?this._renderNotFound(a):this._empty(),this.trigger("rendered",this.name,b,!1)},_append:function(a,b){b=b||[],b.length&&this.$lastSuggestion.length?this._appendSuggestions(a,b):b.length?this._renderSuggestions(a,b):!this.$lastSuggestion.length&&this.templates.notFound&&this._renderNotFound(a),this.trigger("rendered",this.name,b,!0)},_renderSuggestions:function(a,b){var c;c=this._getSuggestionsFragment(a,b),this.$lastSuggestion=c.children().last(),this.$el.html(c).prepend(this._getHeader(a,b)).append(this._getFooter(a,b))},_appendSuggestions:function(a,b){var c,d;c=this._getSuggestionsFragment(a,b),d=c.children().last(),this.$lastSuggestion.after(c),this.$lastSuggestion=d},_renderPending:function(a){var b=this.templates.pending;this._resetLastSuggestion(),b&&this.$el.html(b({query:a,dataset:this.name}))},_renderNotFound:function(a){var b=this.templates.notFound;this._resetLastSuggestion(),b&&this.$el.html(b({query:a,dataset:this.name}))},_empty:function(){this.$el.empty(),this._resetLastSuggestion()},_getSuggestionsFragment:function(c,d){var e,g=this;return e=document.createDocumentFragment(),b.each(d,function(b){var d,f;f=g._injectQuery(c,b),d=a(g.templates.suggestion(f)).data(i.obj,b).data(i.val,g.displayFn(b)).addClass(g.classes.suggestion+" "+g.classes.selectable),e.appendChild(d[0])}),this.highlight&&f({className:this.classes.highlight,node:e,pattern:c}),a(e)},_getFooter:function(a,b){return this.templates.footer?this.templates.footer({query:a,suggestions:b,dataset:this.name}):null},_getHeader:function(a,b){return this.templates.header?this.templates.header({query:a,suggestions:b,dataset:this.name}):null},_resetLastSuggestion:function(){this.$lastSuggestion=a()},_injectQuery:function(a,c){return b.isObject(c)?b.mixin({_query:a},c):c},update:function(b){function c(a){g||(g=!0,a=(a||[]).slice(0,e.limit),h=a.length,e._overwrite(b,a),h<e.limit&&e.async&&e.trigger("asyncRequested",b))}function d(c){c=c||[],!f&&h<e.limit&&(e.cancel=a.noop,h+=c.length,e._append(b,c.slice(0,e.limit-h)),e.async&&e.trigger("asyncReceived",b))}var e=this,f=!1,g=!1,h=0;this.cancel(),this.cancel=function(){f=!0,e.cancel=a.noop,e.async&&e.trigger("asyncCanceled",b)},this.source(b,c,d),!g&&c([])},cancel:a.noop,clear:function(){this._empty(),this.cancel(),this.trigger("cleared")},isEmpty:function(){return this.$el.is(":empty")},destroy:function(){this.$el=a("<div>")}}),c}(),i=function(){"use strict";function c(c,d){function e(b){var c=f.$node.find(b.node).first();return b.node=c.length?c:a("<div>").appendTo(f.$node),new h(b,d)}var f=this;c=c||{},c.node||a.error("node is required"),d.mixin(this),this.$node=a(c.node),this.query=null,this.datasets=b.map(c.datasets,e)}return b.mixin(c.prototype,e,{_onSelectableClick:function(b){this.trigger("selectableClicked",a(b.currentTarget))},_onRendered:function(a,b,c,d){this.$node.toggleClass(this.classes.empty,this._allDatasetsEmpty()),this.trigger("datasetRendered",b,c,d)},_onCleared:function(){this.$node.toggleClass(this.classes.empty,this._allDatasetsEmpty()),this.trigger("datasetCleared")},_propagate:function(){this.trigger.apply(this,arguments)},_allDatasetsEmpty:function(){function a(a){return a.isEmpty()}return b.every(this.datasets,a)},_getSelectables:function(){return this.$node.find(this.selectors.selectable)},_removeCursor:function(){var a=this.getActiveSelectable();a&&a.removeClass(this.classes.cursor)},_ensureVisible:function(a){var b,c,d,e;b=a.position().top,c=b+a.outerHeight(!0),d=this.$node.scrollTop(),e=this.$node.height()+parseInt(this.$node.css("paddingTop"),10)+parseInt(this.$node.css("paddingBottom"),10),0>b?this.$node.scrollTop(d+b):c>e&&this.$node.scrollTop(d+(c-e))},bind:function(){var a,c=this;return a=b.bind(this._onSelectableClick,this),this.$node.on("click.tt",this.selectors.selectable,a),b.each(this.datasets,function(a){a.onSync("asyncRequested",c._propagate,c).onSync("asyncCanceled",c._propagate,c).onSync("asyncReceived",c._propagate,c).onSync("rendered",c._onRendered,c).onSync("cleared",c._onCleared,c)}),this},isOpen:function(){return this.$node.hasClass(this.classes.open)},open:function(){this.$node.addClass(this.classes.open)},close:function(){this.$node.removeClass(this.classes.open),this._removeCursor()},setLanguageDirection:function(a){this.$node.attr("dir",a)},selectableRelativeToCursor:function(a){var b,c,d,e;return c=this.getActiveSelectable(),b=this._getSelectables(),d=c?b.index(c):-1,e=d+a,e=(e+1)%(b.length+1)-1,e=-1>e?b.length-1:e,-1===e?null:b.eq(e)},setCursor:function(a){this._removeCursor(),(a=a&&a.first())&&(a.addClass(this.classes.cursor),this._ensureVisible(a))},getSelectableData:function(a){return a&&a.length?h.extractData(a):null},getActiveSelectable:function(){var a=this._getSelectables().filter(this.selectors.cursor).first();return a.length?a:null},getTopSelectable:function(){var a=this._getSelectables().first();return a.length?a:null},update:function(a){function c(b){b.update(a)}var d=a!==this.query;return d&&(this.query=a,b.each(this.datasets,c)),d},empty:function(){function a(a){a.clear()}b.each(this.datasets,a),this.query=null,this.$node.addClass(this.classes.empty)},destroy:function(){function c(a){a.destroy()}this.$node.off(".tt"),this.$node=a("<div>"),b.each(this.datasets,c)}}),c}(),j=function(){"use strict";function a(){i.apply(this,[].slice.call(arguments,0))}var c=i.prototype;return b.mixin(a.prototype,i.prototype,{open:function(){return!this._allDatasetsEmpty()&&this._show(),c.open.apply(this,[].slice.call(arguments,0))},close:function(){return this._hide(),c.close.apply(this,[].slice.call(arguments,0))},_onRendered:function(){return this._allDatasetsEmpty()?this._hide():this.isOpen()&&this._show(),c._onRendered.apply(this,[].slice.call(arguments,0))},_onCleared:function(){return this._allDatasetsEmpty()?this._hide():this.isOpen()&&this._show(),c._onCleared.apply(this,[].slice.call(arguments,0))},setLanguageDirection:function(a){return this.$node.css("ltr"===a?this.css.ltr:this.css.rtl),c.setLanguageDirection.apply(this,[].slice.call(arguments,0))},_hide:function(){this.$node.hide()},_show:function(){this.$node.css("display","block")}}),a}(),k=function(){"use strict";function c(c,e){var f,g,h,i,j,k,l,m,n,o,p;c=c||{},c.input||a.error("missing input"),c.menu||a.error("missing menu"),c.eventBus||a.error("missing event bus"),e.mixin(this),this.eventBus=c.eventBus,this.minLength=b.isNumber(c.minLength)?c.minLength:1,this.input=c.input,this.menu=c.menu,this.enabled=!0,this.active=!1,this.input.hasFocus()&&this.activate(),this.dir=this.input.getLangDir(),this._hacks(),this.menu.bind().onSync("selectableClicked",this._onSelectableClicked,this).onSync("asyncRequested",this._onAsyncRequested,this).onSync("asyncCanceled",this._onAsyncCanceled,this).onSync("asyncReceived",this._onAsyncReceived,this).onSync("datasetRendered",this._onDatasetRendered,this).onSync("datasetCleared",this._onDatasetCleared,this),f=d(this,"activate","open","_onFocused"),g=d(this,"deactivate","_onBlurred"),h=d(this,"isActive","isOpen","_onEnterKeyed"),i=d(this,"isActive","isOpen","_onTabKeyed"),j=d(this,"isActive","_onEscKeyed"),k=d(this,"isActive","open","_onUpKeyed"),l=d(this,"isActive","open","_onDownKeyed"),m=d(this,"isActive","isOpen","_onLeftKeyed"),n=d(this,"isActive","isOpen","_onRightKeyed"),o=d(this,"_openIfActive","_onQueryChanged"),p=d(this,"_openIfActive","_onWhitespaceChanged"),this.input.bind().onSync("focused",f,this).onSync("blurred",g,this).onSync("enterKeyed",h,this).onSync("tabKeyed",i,this).onSync("escKeyed",j,this).onSync("upKeyed",k,this).onSync("downKeyed",l,this).onSync("leftKeyed",m,this).onSync("rightKeyed",n,this).onSync("queryChanged",o,this).onSync("whitespaceChanged",p,this).onSync("langDirChanged",this._onLangDirChanged,this)}function d(a){var c=[].slice.call(arguments,1);return function(){var d=[].slice.call(arguments);b.each(c,function(b){return a[b].apply(a,d)})}}return b.mixin(c.prototype,{_hacks:function(){var c,d;c=this.input.$input||a("<div>"),d=this.menu.$node||a("<div>"),c.on("blur.tt",function(a){var e,f,g;e=document.activeElement,f=d.is(e),g=d.has(e).length>0,b.isMsie()&&(f||g)&&(a.preventDefault(),a.stopImmediatePropagation(),b.defer(function(){c.focus()}))}),d.on("mousedown.tt",function(a){a.preventDefault()})},_onSelectableClicked:function(a,b){this.select(b)},_onDatasetCleared:function(){this._updateHint()},_onDatasetRendered:function(a,b,c,d){this._updateHint(),this.eventBus.trigger("render",c,d,b)},_onAsyncRequested:function(a,b,c){this.eventBus.trigger("asyncrequest",c,b)},_onAsyncCanceled:function(a,b,c){this.eventBus.trigger("asynccancel",c,b)},_onAsyncReceived:function(a,b,c){this.eventBus.trigger("asyncreceive",c,b)},_onFocused:function(){this._minLengthMet()&&this.menu.update(this.input.getQuery())},_onBlurred:function(){this.input.hasQueryChangedSinceLastFocus()&&this.eventBus.trigger("change",this.input.getQuery())},_onEnterKeyed:function(a,b){var c;(c=this.menu.getActiveSelectable())&&this.select(c)&&b.preventDefault()},_onTabKeyed:function(a,b){var c;(c=this.menu.getActiveSelectable())?this.select(c)&&b.preventDefault():(c=this.menu.getTopSelectable())&&this.autocomplete(c)&&b.preventDefault()},_onEscKeyed:function(){this.close()},_onUpKeyed:function(){this.moveCursor(-1)},_onDownKeyed:function(){this.moveCursor(1)},_onLeftKeyed:function(){"rtl"===this.dir&&this.input.isCursorAtEnd()&&this.autocomplete(this.menu.getTopSelectable())},_onRightKeyed:function(){"ltr"===this.dir&&this.input.isCursorAtEnd()&&this.autocomplete(this.menu.getTopSelectable())},_onQueryChanged:function(a,b){this._minLengthMet(b)?this.menu.update(b):this.menu.empty()},_onWhitespaceChanged:function(){this._updateHint()},_onLangDirChanged:function(a,b){this.dir!==b&&(this.dir=b,this.menu.setLanguageDirection(b))},_openIfActive:function(){this.isActive()&&this.open()},_minLengthMet:function(a){return a=b.isString(a)?a:this.input.getQuery()||"",a.length>=this.minLength},_updateHint:function(){var a,c,d,e,f,h,i;a=this.menu.getTopSelectable(),c=this.menu.getSelectableData(a),d=this.input.getInputValue(),!c||b.isBlankString(d)||this.input.hasOverflow()?this.input.clearHint():(e=g.normalizeQuery(d),f=b.escapeRegExChars(e),h=new RegExp("^(?:"+f+")(.+$)","i"),i=h.exec(c.val),i&&this.input.setHint(d+i[1]))},isEnabled:function(){return this.enabled},enable:function(){this.enabled=!0},disable:function(){this.enabled=!1},isActive:function(){return this.active},activate:function(){return this.isActive()?!0:!this.isEnabled()||this.eventBus.before("active")?!1:(this.active=!0,this.eventBus.trigger("active"),!0)},deactivate:function(){return this.isActive()?this.eventBus.before("idle")?!1:(this.active=!1,this.close(),this.eventBus.trigger("idle"),!0):!0},isOpen:function(){return this.menu.isOpen()},open:function(){return this.isOpen()||this.eventBus.before("open")||(this.menu.open(),this._updateHint(),this.eventBus.trigger("open")),this.isOpen()},close:function(){return this.isOpen()&&!this.eventBus.before("close")&&(this.menu.close(),this.input.clearHint(),this.input.resetInputValue(),this.eventBus.trigger("close")),!this.isOpen()},setVal:function(a){this.input.setQuery(b.toStr(a))},getVal:function(){return this.input.getQuery()},select:function(a){var b=this.menu.getSelectableData(a);return b&&!this.eventBus.before("select",b.obj)?(this.input.setQuery(b.val,!0),this.eventBus.trigger("select",b.obj),this.close(),!0):!1},autocomplete:function(a){var b,c,d;return b=this.input.getQuery(),c=this.menu.getSelectableData(a),d=c&&b!==c.val,d&&!this.eventBus.before("autocomplete",c.obj)?(this.input.setQuery(c.val),this.eventBus.trigger("autocomplete",c.obj),!0):!1},moveCursor:function(a){var b,c,d,e,f;return b=this.input.getQuery(),c=this.menu.selectableRelativeToCursor(a),d=this.menu.getSelectableData(c),e=d?d.obj:null,f=this._minLengthMet()&&this.menu.update(b),f||this.eventBus.before("cursorchange",e)?!1:(this.menu.setCursor(c),d?this.input.setInputValue(d.val):(this.input.resetInputValue(),this._updateHint()),this.eventBus.trigger("cursorchange",e),!0)},destroy:function(){this.input.destroy(),this.menu.destroy()}}),c}();!function(){"use strict";function e(b,c){b.each(function(){var b,d=a(this);(b=d.data(p.typeahead))&&c(b,d)})}function f(a,b){return a.clone().addClass(b.classes.hint).removeData().css(b.css.hint).css(l(a)).prop("readonly",!0).removeAttr("id name placeholder required").attr({autocomplete:"off",spellcheck:"false",tabindex:-1})}function h(a,b){a.data(p.attrs,{dir:a.attr("dir"),autocomplete:a.attr("autocomplete"),spellcheck:a.attr("spellcheck"),style:a.attr("style")}),a.addClass(b.classes.input).attr({autocomplete:"off",spellcheck:!1});try{!a.attr("dir")&&a.attr("dir","auto")}catch(c){}return a}function l(a){return{backgroundAttachment:a.css("background-attachment"),backgroundClip:a.css("background-clip"),backgroundColor:a.css("background-color"),backgroundImage:a.css("background-image"),backgroundOrigin:a.css("background-origin"),backgroundPosition:a.css("background-position"),backgroundRepeat:a.css("background-repeat"),backgroundSize:a.css("background-size")}}function m(a){var c,d;c=a.data(p.www),d=a.parent().filter(c.selectors.wrapper),b.each(a.data(p.attrs),function(c,d){b.isUndefined(c)?a.removeAttr(d):a.attr(d,c)}),a.removeData(p.typeahead).removeData(p.www).removeData(p.attr).removeClass(c.classes.input),d.length&&(a.detach().insertAfter(d),d.remove())}function n(c){var d,e;return d=b.isJQuery(c)||b.isElement(c),e=d?a(c).first():[],e.length?e:null}var o,p,q;o=a.fn.typeahead,p={www:"tt-www",attrs:"tt-attrs",typeahead:"tt-typeahead"},q={initialize:function(e,l){function m(){var c,m,q,r,s,t,u,v,w,x,y;b.each(l,function(a){a.highlight=!!e.highlight}),c=a(this),m=a(o.html.wrapper),q=n(e.hint),r=n(e.menu),s=e.hint!==!1&&!q,t=e.menu!==!1&&!r,s&&(q=f(c,o)),t&&(r=a(o.html.menu).css(o.css.menu)),q&&q.val(""),c=h(c,o),(s||t)&&(m.css(o.css.wrapper),c.css(s?o.css.input:o.css.inputWithNoHint),c.wrap(m).parent().prepend(s?q:null).append(t?r:null)),y=t?j:i,u=new d({el:c}),v=new g({hint:q,input:c},o),w=new y({node:r,datasets:l},o),x=new k({input:v,menu:w,eventBus:u,minLength:e.minLength},o),c.data(p.www,o),c.data(p.typeahead,x)}var o;return l=b.isArray(l)?l:[].slice.call(arguments,1),e=e||{},o=c(e.classNames),this.each(m)},isEnabled:function(){var a;return e(this.first(),function(b){a=b.isEnabled()}),a},enable:function(){return e(this,function(a){a.enable()}),this},disable:function(){return e(this,function(a){a.disable()}),this},isActive:function(){var a;return e(this.first(),function(b){a=b.isActive()}),a},activate:function(){return e(this,function(a){a.activate()}),this},deactivate:function(){return e(this,function(a){a.deactivate()}),this},isOpen:function(){var a;return e(this.first(),function(b){a=b.isOpen()}),a},open:function(){return e(this,function(a){a.open()}),this},close:function(){return e(this,function(a){a.close()}),this},select:function(b){var c=!1,d=a(b);return e(this.first(),function(a){c=a.select(d)}),c},autocomplete:function(b){var c=!1,d=a(b);return e(this.first(),function(a){c=a.autocomplete(d)}),c},moveCursor:function(a){var b=!1;return e(this.first(),function(c){b=c.moveCursor(a)}),b},val:function(a){var b;return arguments.length?(e(this,function(b){b.setVal(a)}),this):(e(this.first(),function(a){b=a.getVal()}),b)},destroy:function(){return e(this,function(a,b){m(b),a.destroy()}),this}},a.fn.typeahead=function(a){return q[a]?q[a].apply(this,[].slice.call(arguments,1)):q.initialize.apply(this,arguments)},a.fn.typeahead.noConflict=function(){return a.fn.typeahead=o,this}}()});
//! moment.js
//! version : 2.13.0
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com
!function(a,b){"object"==typeof exports&&"undefined"!=typeof module?module.exports=b():"function"==typeof define&&define.amd?define(b):a.moment=b()}(this,function(){"use strict";function a(){return fd.apply(null,arguments)}function b(a){fd=a}function c(a){return a instanceof Array||"[object Array]"===Object.prototype.toString.call(a)}function d(a){return a instanceof Date||"[object Date]"===Object.prototype.toString.call(a)}function e(a,b){var c,d=[];for(c=0;c<a.length;++c)d.push(b(a[c],c));return d}function f(a,b){return Object.prototype.hasOwnProperty.call(a,b)}function g(a,b){for(var c in b)f(b,c)&&(a[c]=b[c]);return f(b,"toString")&&(a.toString=b.toString),f(b,"valueOf")&&(a.valueOf=b.valueOf),a}function h(a,b,c,d){return Ja(a,b,c,d,!0).utc()}function i(){return{empty:!1,unusedTokens:[],unusedInput:[],overflow:-2,charsLeftOver:0,nullInput:!1,invalidMonth:null,invalidFormat:!1,userInvalidated:!1,iso:!1,parsedDateParts:[],meridiem:null}}function j(a){return 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Please use toISOString() instead (notice the capitals)",ed),cf.lang=ne,R("X",0,0,"unix"),R("x",0,0,"valueOf"),W("x",Fd),W("X",Id),$("X",function(a,b,c){c._d=new Date(1e3*parseFloat(a,10))}),$("x",function(a,b,c){c._d=new Date(r(a))}),a.version="2.13.0",b(Ka),a.fn=De,a.min=Ma,a.max=Na,a.now=he,a.utc=h,a.unix=xc,a.months=Jc,a.isDate=d,a.locale=E,a.invalid=l,a.duration=db,a.isMoment=p,a.weekdays=Lc,a.parseZone=yc,a.localeData=H,a.isDuration=Pa,a.monthsShort=Kc,a.weekdaysMin=Nc,a.defineLocale=F,a.updateLocale=G,a.locales=I,a.weekdaysShort=Mc,a.normalizeUnits=K,a.relativeTimeThreshold=cd,a.prototype=De;var df=a;return df});
//! moment.js locale configuration
//! locale : dutch (nl)
//! author : Joris Röling : https://github.com/jjupiter

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define(['moment'], factory) :
   factory(global.moment)
}(this, function (moment) { 'use strict';


    var monthsShortWithDots = 'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_'),
        monthsShortWithoutDots = 'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_');

    var nl = moment.defineLocale('nl', {
        months : 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split('_'),
        monthsShort : function (m, format) {
            if (/-MMM-/.test(format)) {
                return monthsShortWithoutDots[m.month()];
            } else {
                return monthsShortWithDots[m.month()];
            }
        },
        monthsParseExact : true,
        weekdays : 'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
        weekdaysShort : 'zo._ma._di._wo._do._vr._za.'.split('_'),
        weekdaysMin : 'Zo_Ma_Di_Wo_Do_Vr_Za'.split('_'),
        weekdaysParseExact : true,
        longDateFormat : {
            LT : 'HH:mm',
            LTS : 'HH:mm:ss',
            L : 'DD-MM-YYYY',
            LL : 'D MMMM YYYY',
            LLL : 'D MMMM YYYY HH:mm',
            LLLL : 'dddd D MMMM YYYY HH:mm'
        },
        calendar : {
            sameDay: '[vandaag om] LT',
            nextDay: '[morgen om] LT',
            nextWeek: 'dddd [om] LT',
            lastDay: '[gisteren om] LT',
            lastWeek: '[afgelopen] dddd [om] LT',
            sameElse: 'L'
        },
        relativeTime : {
            future : 'over %s',
            past : '%s geleden',
            s : 'een paar seconden',
            m : 'één minuut',
            mm : '%d minuten',
            h : 'één uur',
            hh : '%d uur',
            d : 'één dag',
            dd : '%d dagen',
            M : 'één maand',
            MM : '%d maanden',
            y : 'één jaar',
            yy : '%d jaar'
        },
        ordinalParse: /\d{1,2}(ste|de)/,
        ordinal : function (number) {
            return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de');
        },
        week : {
            dow : 1, // Monday is the first day of the week.
            doy : 4  // The week that contains Jan 4th is the first week of the year.
        }
    });

    return nl;

}));
'use strict';

if (typeof require === 'function') {
    var moment = require('moment');
}

moment.fn.isHoliday = function () {
    var locale = this.localeData();

    if (locale._holidays) {
        if (locale._holidays.indexOf(this.format(locale._holidayFormat)) >= 0)
            return true;
    }

    if (locale.holiday) {
        if (locale.holiday(this)) {
            return true;
        }
        return false;
    }

    return false;
};

moment.fn.isBusinessDay = function () {
    var locale = this.localeData();
    var defaultWorkingWeekdays = [1, 2, 3, 4, 5];
    var workingWeekdays = locale._workingWeekdays || defaultWorkingWeekdays;

    if (this.isHoliday()) return false;
    if (workingWeekdays.indexOf(this.day()) >= 0) return true;

    return false;
};

moment.fn.businessDaysIntoMonth = function () {
    if (!this.isValid()) {
        return NaN;
    }
    var businessDay = this.isBusinessDay() ? this : this.prevBusinessDay();
    var monthBusinessDays = businessDay.monthBusinessDays();
    var businessDaysIntoMonth;
    monthBusinessDays.map(function (day, index) {
        if (day.format('M/DD/YY') === businessDay.format('M/DD/YY')) {
            businessDaysIntoMonth = index + 1;
        }
    });
    return businessDaysIntoMonth;
};

moment.fn.businessDiff = function (param, relative) {
    var d1 = this.clone();
    var d2 = param.clone();
    var positive = d1 >= d2;
    var start = d1 < d2 ? d1 : d2;
    var end = d2 > d1 ? d2 : d1;

    var daysBetween = 0;

    if (start.format('DD/MM/YYYY') === end.format('DD/MM/YYYY')) {
        return daysBetween;
    }

    while (start < end) {
        if (start.isBusinessDay()) {
            daysBetween++;
        }
        start.add(1, 'd');
    }

    if (relative) {
        return positive ? daysBetween : -daysBetween;
    }

    return daysBetween;
};

moment.fn.businessAdd = function (number, period) {
    var day = this.clone();
    if (!day.isValid()) {
        return day;
    }

    if (number < 0) {
        number = Math.round(-1 * number) * -1;
    } else {
        number = Math.round(number);
    }

    var signal = number < 0 ? -1 : 1;
    period = typeof period !== 'undefined' ? period : 'days';

    var remaining = Math.abs(number);
    while (remaining > 0) {
        day.add(signal, period);

        if (day.isBusinessDay()) {
            remaining--;
        }
    }

    return day;
};

moment.fn.businessSubtract = function (number, period) {
    return this.businessAdd(-number, period);
};

moment.fn.nextBusinessDay = function () {
    var locale = this.localeData();

    var loop = 1;
    var defaultNextBusinessDayLimit = 7;
    var limit = locale._nextBusinessDayLimit || defaultNextBusinessDayLimit;
    while (loop < limit) {
        if (this.add(1, 'd').isBusinessDay()) {
            break;
        }
        loop++;
    }
    return this;
};

moment.fn.prevBusinessDay = function () {
    var locale = this.localeData();

    var loop = 1;
    var defaultPrevBusinessDayLimit = 7;
    var limit = locale._prevBusinessDayLimit || defaultPrevBusinessDayLimit;
    while (loop < limit) {
        if (this.subtract(1, 'd').isBusinessDay()) {
            break;
        }
        loop++;
    }
    return this;
};

moment.fn.monthBusinessDays = function (partialEndDate) {
    if (!this.isValid()) {
        return [];
    }
    var me = this.clone();
    var day = me.clone().startOf('month');
    var end = partialEndDate ? partialEndDate : me.clone().endOf('month');
    var daysArr = [];
    var done = false;
    while (!done) {
        if (day.isBusinessDay()) {
            daysArr.push(day.clone());
        }
        if (end.diff(day.add(1, 'd')) < 0) {
            done = true;
        }
    }
    return daysArr;
};

moment.fn.monthNaturalDays = function (fromToday) {
    if (!this.isValid()) {
        return [];
    }
    var me = this.clone();
    var day = fromToday ? me.clone() : me.clone().startOf('month');
    var end = me.clone().endOf('month');
    var daysArr = [];
    var done = false;
    while (!done) {
        daysArr.push(day.clone());
        if (end.diff(day.add(1, 'd')) < 0) {
            done = true;
        }
    }
    return daysArr;
};

moment.fn.monthBusinessWeeks = function (fromToday) {
    fromToday = fromToday || false;
    var me = this.clone();
    var startDate = fromToday ? me.clone() : me.clone().startOf('month');
    return getBusinessWeeks(this, fromToday, null, startDate);
};

moment.fn.businessWeeksBetween = function (endDate) {
    var me = this.clone();
    var startDate = me.clone();
    return getBusinessWeeks(this, false, endDate, startDate);
};

var getBusinessWeeks = function (self, fromToday, endDate, startDate) {
    if (!self.isValid()) {
        return [];
    }
    var me = self.clone();
    var day = startDate;
    var end = endDate ? moment(endDate).clone() : me.clone().endOf('month');
    var weeksArr = [];
    var daysArr = [];
    var done = false;

    while (!done) {
        if (day.day() >= 1 && day.day() < 6) {
            daysArr.push(day.clone());
        }
        if (day.day() === 5) {
            weeksArr.push(daysArr);
            daysArr = [];
        }
        if (end.diff(day.add(1, 'd')) < 0) {
            if (daysArr.length < 5) {
                weeksArr.push(daysArr);
            }
            done = true;
        }
    }
    return weeksArr;
}

moment.fn.monthNaturalWeeks = function (fromToday) {
    if (!this.isValid()) {
        return [];
    }
    var me = this.clone();
    var day = fromToday ? me.clone() : me.clone().startOf('month');
    var end = me.clone().endOf('month');
    var weeksArr = [];
    var daysArr = [];
    var done = false;

    while (!done) {
        daysArr.push(day.clone());
        if (day.day() === 6) {
            weeksArr.push(daysArr);
            daysArr = [];
        }
        if (end.diff(day.add(1, 'd')) < 0) {
            if (daysArr.length < 7) {
                weeksArr.push(daysArr);
            }
            done = true;
        }
    }
    return weeksArr;
};

if (typeof module != 'undefined' && module.exports) {
    module.exports = moment;
}

/*! version : 4.17.37
 =========================================================
 bootstrap-datetimejs
 https://github.com/Eonasdan/bootstrap-datetimepicker
 Copyright (c) 2015 Jonathan Peterson
 =========================================================
 */
!function(a){"use strict";if("function"==typeof define&&define.amd)define(["jquery","moment"],a);else if("object"==typeof exports)a(require("jquery"),require("moment"));else{if("undefined"==typeof jQuery)throw"bootstrap-datetimepicker requires jQuery to be loaded first";if("undefined"==typeof moment)throw"bootstrap-datetimepicker requires Moment.js to be loaded first";a(jQuery,moment)}}(function(a,b){"use strict";if(!b)throw new Error("bootstrap-datetimepicker requires Moment.js to be loaded first");var c=function(c,d){var e,f,g,h,i,j,k,l={},m=!0,n=!1,o=!1,p=0,q=[{clsName:"days",navFnc:"M",navStep:1},{clsName:"months",navFnc:"y",navStep:1},{clsName:"years",navFnc:"y",navStep:10},{clsName:"decades",navFnc:"y",navStep:100}],r=["days","months","years","decades"],s=["top","bottom","auto"],t=["left","right","auto"],u=["default","top","bottom"],v={up:38,38:"up",down:40,40:"down",left:37,37:"left",right:39,39:"right",tab:9,9:"tab",escape:27,27:"escape",enter:13,13:"enter",pageUp:33,33:"pageUp",pageDown:34,34:"pageDown",shift:16,16:"shift",control:17,17:"control",space:32,32:"space",t:84,84:"t","delete":46,46:"delete"},w={},x=function(a){var c,e,f,g,h,i=!1;return void 0!==b.tz&&void 0!==d.timeZone&&null!==d.timeZone&&""!==d.timeZone&&(i=!0),void 0===a||null===a?c=i?b().tz(d.timeZone).startOf("d"):b().startOf("d"):i?(e=b().tz(d.timeZone).utcOffset(),f=b(a,j,d.useStrict).utcOffset(),f!==e?(g=b().tz(d.timeZone).format("Z"),h=b(a,j,d.useStrict).format("YYYY-MM-DD[T]HH:mm:ss")+g,c=b(h,j,d.useStrict).tz(d.timeZone)):c=b(a,j,d.useStrict).tz(d.timeZone)):c=b(a,j,d.useStrict),c},y=function(a){if("string"!=typeof a||a.length>1)throw new TypeError("isEnabled expects a single character string parameter");switch(a){case"y":return-1!==i.indexOf("Y");case"M":return-1!==i.indexOf("M");case"d":return-1!==i.toLowerCase().indexOf("d");case"h":case"H":return-1!==i.toLowerCase().indexOf("h");case"m":return-1!==i.indexOf("m");case"s":return-1!==i.indexOf("s");default:return!1}},z=function(){return y("h")||y("m")||y("s")},A=function(){return y("y")||y("M")||y("d")},B=function(){var b=a("<thead>").append(a("<tr>").append(a("<th>").addClass("prev").attr("data-action","previous").append(a("<span>").addClass(d.icons.previous))).append(a("<th>").addClass("picker-switch").attr("data-action","pickerSwitch").attr("colspan",d.calendarWeeks?"6":"5")).append(a("<th>").addClass("next").attr("data-action","next").append(a("<span>").addClass(d.icons.next)))),c=a("<tbody>").append(a("<tr>").append(a("<td>").attr("colspan",d.calendarWeeks?"8":"7")));return[a("<div>").addClass("datepicker-days").append(a("<table>").addClass("table-condensed").append(b).append(a("<tbody>"))),a("<div>").addClass("datepicker-months").append(a("<table>").addClass("table-condensed").append(b.clone()).append(c.clone())),a("<div>").addClass("datepicker-years").append(a("<table>").addClass("table-condensed").append(b.clone()).append(c.clone())),a("<div>").addClass("datepicker-decades").append(a("<table>").addClass("table-condensed").append(b.clone()).append(c.clone()))]},C=function(){var b=a("<tr>"),c=a("<tr>"),e=a("<tr>");return y("h")&&(b.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.incrementHour}).addClass("btn").attr("data-action","incrementHours").append(a("<span>").addClass(d.icons.up)))),c.append(a("<td>").append(a("<span>").addClass("timepicker-hour").attr({"data-time-component":"hours",title:d.tooltips.pickHour}).attr("data-action","showHours"))),e.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.decrementHour}).addClass("btn").attr("data-action","decrementHours").append(a("<span>").addClass(d.icons.down))))),y("m")&&(y("h")&&(b.append(a("<td>").addClass("separator")),c.append(a("<td>").addClass("separator").html(":")),e.append(a("<td>").addClass("separator"))),b.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.incrementMinute}).addClass("btn").attr("data-action","incrementMinutes").append(a("<span>").addClass(d.icons.up)))),c.append(a("<td>").append(a("<span>").addClass("timepicker-minute").attr({"data-time-component":"minutes",title:d.tooltips.pickMinute}).attr("data-action","showMinutes"))),e.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.decrementMinute}).addClass("btn").attr("data-action","decrementMinutes").append(a("<span>").addClass(d.icons.down))))),y("s")&&(y("m")&&(b.append(a("<td>").addClass("separator")),c.append(a("<td>").addClass("separator").html(":")),e.append(a("<td>").addClass("separator"))),b.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.incrementSecond}).addClass("btn").attr("data-action","incrementSeconds").append(a("<span>").addClass(d.icons.up)))),c.append(a("<td>").append(a("<span>").addClass("timepicker-second").attr({"data-time-component":"seconds",title:d.tooltips.pickSecond}).attr("data-action","showSeconds"))),e.append(a("<td>").append(a("<a>").attr({href:"#",tabindex:"-1",title:d.tooltips.decrementSecond}).addClass("btn").attr("data-action","decrementSeconds").append(a("<span>").addClass(d.icons.down))))),h||(b.append(a("<td>").addClass("separator")),c.append(a("<td>").append(a("<button>").addClass("btn btn-primary").attr({"data-action":"togglePeriod",tabindex:"-1",title:d.tooltips.togglePeriod}))),e.append(a("<td>").addClass("separator"))),a("<div>").addClass("timepicker-picker").append(a("<table>").addClass("table-condensed").append([b,c,e]))},D=function(){var b=a("<div>").addClass("timepicker-hours").append(a("<table>").addClass("table-condensed")),c=a("<div>").addClass("timepicker-minutes").append(a("<table>").addClass("table-condensed")),d=a("<div>").addClass("timepicker-seconds").append(a("<table>").addClass("table-condensed")),e=[C()];return y("h")&&e.push(b),y("m")&&e.push(c),y("s")&&e.push(d),e},E=function(){var b=[];return d.showTodayButton&&b.push(a("<td>").append(a("<a>").attr({"data-action":"today",title:d.tooltips.today}).append(a("<span>").addClass(d.icons.today)))),!d.sideBySide&&A()&&z()&&b.push(a("<td>").append(a("<a>").attr({"data-action":"togglePicker",title:d.tooltips.selectTime}).append(a("<span>").addClass(d.icons.time)))),d.showClear&&b.push(a("<td>").append(a("<a>").attr({"data-action":"clear",title:d.tooltips.clear}).append(a("<span>").addClass(d.icons.clear)))),d.showClose&&b.push(a("<td>").append(a("<a>").attr({"data-action":"close",title:d.tooltips.close}).append(a("<span>").addClass(d.icons.close)))),a("<table>").addClass("table-condensed").append(a("<tbody>").append(a("<tr>").append(b)))},F=function(){var b=a("<div>").addClass("bootstrap-datetimepicker-widget dropdown-menu"),c=a("<div>").addClass("datepicker").append(B()),e=a("<div>").addClass("timepicker").append(D()),f=a("<ul>").addClass("list-unstyled"),g=a("<li>").addClass("picker-switch"+(d.collapse?" 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b,e=(n||c).position(),f=(n||c).offset(),g=d.widgetPositioning.vertical,h=d.widgetPositioning.horizontal;if(d.widgetParent)b=d.widgetParent.append(o);else if(c.is("input"))b=c.after(o).parent();else{if(d.inline)return void(b=c.append(o));b=c,c.children().first().after(o)}if("auto"===g&&(g=f.top+1.5*o.height()>=a(window).height()+a(window).scrollTop()&&o.height()+c.outerHeight()<f.top?"top":"bottom"),"auto"===h&&(h=b.width()<f.left+o.outerWidth()/2&&f.left+o.outerWidth()>a(window).width()?"right":"left"),"top"===g?o.addClass("top").removeClass("bottom"):o.addClass("bottom").removeClass("top"),"right"===h?o.addClass("pull-right"):o.removeClass("pull-right"),"relative"!==b.css("position")&&(b=b.parents().filter(function(){return"relative"===a(this).css("position")}).first()),0===b.length)throw new Error("datetimepicker component should be placed within a relative positioned 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n;if(!q(e.instance.modifiers,'arrow','keepTogether'))return e;var i=o.element;if('string'==typeof i){if(i=e.instance.popper.querySelector(i),!i)return e;}else if(!e.instance.popper.contains(i))return console.warn('WARNING: `arrow.element` must be child of its popper element!'),e;var r=e.placement.split('-')[0],p=e.offsets,s=p.popper,d=p.reference,a=-1!==['left','right'].indexOf(r),l=a?'height':'width',f=a?'Top':'Left',m=f.toLowerCase(),h=a?'left':'top',c=a?'bottom':'right',u=S(i)[l];d[c]-u<s[m]&&(e.offsets.popper[m]-=s[m]-(d[c]-u)),d[m]+u>s[c]&&(e.offsets.popper[m]+=d[m]+u-s[c]),e.offsets.popper=g(e.offsets.popper);var b=d[m]+d[l]/2-u/2,y=t(e.instance.popper),w=parseFloat(y['margin'+f],10),E=parseFloat(y['border'+f+'Width'],10),v=b-e.offsets.popper[m]-w-E;return v=$(J(s[l]-u,v),0),e.arrowElement=i,e.offsets.arrow=(n={},ae(n,m,Q(v)),ae(n,h,''),n),e},element:'[x-arrow]'},flip:{order:600,enabled:!0,fn:function(e,t){if(W(e.instance.modifiers,'inner'))return e;if(e.flipped&&e.placement===e.originalPlacement)return e;var o=v(e.instance.popper,e.instance.reference,t.padding,t.boundariesElement,e.positionFixed),n=e.placement.split('-')[0],i=T(n),r=e.placement.split('-')[1]||'',p=[];switch(t.behavior){case he.FLIP:p=[n,i];break;case he.CLOCKWISE:p=z(n);break;case he.COUNTERCLOCKWISE:p=z(n,!0);break;default:p=t.behavior;}return p.forEach(function(s,d){if(n!==s||p.length===d+1)return e;n=e.placement.split('-')[0],i=T(n);var a=e.offsets.popper,l=e.offsets.reference,f=Z,m='left'===n&&f(a.right)>f(l.left)||'right'===n&&f(a.left)<f(l.right)||'top'===n&&f(a.bottom)>f(l.top)||'bottom'===n&&f(a.top)<f(l.bottom),h=f(a.left)<f(o.left),c=f(a.right)>f(o.right),g=f(a.top)<f(o.top),u=f(a.bottom)>f(o.bottom),b='left'===n&&h||'right'===n&&c||'top'===n&&g||'bottom'===n&&u,y=-1!==['top','bottom'].indexOf(n),w=!!t.flipVariations&&(y&&'start'===r&&h||y&&'end'===r&&c||!y&&'start'===r&&g||!y&&'end'===r&&u);(m||b||w)&&(e.flipped=!0,(m||b)&&(n=p[d+1]),w&&(r=G(r)),e.placement=n+(r?'-'+r:''),e.offsets.popper=le({},e.offsets.popper,C(e.instance.popper,e.offsets.reference,e.placement)),e=P(e.instance.modifiers,e,'flip'))}),e},behavior:'flip',padding:5,boundariesElement:'viewport'},inner:{order:700,enabled:!1,fn:function(e){var t=e.placement,o=t.split('-')[0],n=e.offsets,i=n.popper,r=n.reference,p=-1!==['left','right'].indexOf(o),s=-1===['top','left'].indexOf(o);return 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r=L(i,t,e,o.positionFixed),p=O(o.placement,r,t,e,o.modifiers.flip.boundariesElement,o.modifiers.flip.padding);return t.setAttribute('x-placement',p),j(t,{position:o.positionFixed?'fixed':'absolute'}),o},gpuAcceleration:void 0}}},ce});
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'use strict';(function(a,b){'function'==typeof define&&define.amd?define('tinysort',function(){return b}):a.tinysort=b})(window||module||{},function(a){function c(a,b){for(var c,d=a.length,e=d;e--;)c=d-e-1,b(a[c],c);return a}function b(a,b,c){for(var d in b)(c||a[d]===e)&&(a[d]=b[d]);return a}function d(a,b,c){return l.push({prepare:a,sort:b,sortBy:c})}var e=a,f=null,g=window,h=g.document,i=parseFloat,j=/(-?\d+\.?\d*)\s*$/g,k=/(\d+\.?\d*)\s*$/g,l=[],m=function(a){return String.fromCharCode(a)},n=function(a){return Array.from([,,,],function(b,c){return m(a+c)})},o=n(0),p=n(4095),q={selector:f,order:'asc',attr:f,data:f,useVal:!1,place:'org',returns:!1,cases:!1,natural:!1,forceStrings:!1,ignoreDashes:!1,sortFunction:f,useFlex:!1,emptyEnd:!1,console:console},r=0,s=0;return g.Element&&function(a){return a.matches=a.matches||a.msMatchesSelector}(Element.prototype),b(d,{loop:c}),b(function(a){for(var A=arguments.length,B=Array(1<A?A-1:0),C=1;C<A;C++)B[C-1]=arguments[C];function d(a){var c=!!a.selector,d=c&&':'===a.selector[0],e=b(a||{},q);return L.push(b({hasSelector:c,hasAttr:e.attr!==f&&''!==e.attr,hasData:e.data!==f,hasFilter:d,sortReturnNumber:'asc'===e.order?1:-1},e))}function g(){c(a,function(a,b){M?M!==a.parentNode&&(N=!1):M=a.parentNode;var c=L[0],d=c.hasFilter,e=c.selector,f=!e||d&&a.matches(e)||e&&a.querySelector(e),g=f?I:J,h=g.length,i={elm:a,pos:b,posn:h};H.push(i),g.push(i)}),K.splice.apply(K,[0,Number.MAX_SAFE_INTEGER].concat(I))}function m(e,a,b){for(var f=b(e.toString()),g=b(a.toString()),h=0;f[h]&&g[h];h++)if(f[h]!==g[h]){var i=+f[h],c=+g[h];return i==f[h]&&c==g[h]?i-c:f[h]>g[h]?1:-1}return f.length-g.length}function n(a){for(var b,c=[],d=0,e=-1,f=0,g=void 0,h=void 0;g=(h=a.charAt(d++)).charCodeAt(0);)b=46===g||48<=g&&57>=g,b!==f&&(c[++e]='',f=b),c[e]+=h;return c}function t(d,a){var b=0;0!==s&&(s=0);for(var e=function(){var e=L[s],f=e.ignoreDashes?k:j;c(l,function(a){return a.prepare&&a.prepare(e)});var g=!1,h=y(d,e),o=y(a,e);if(e.sortFunction)b=e.sortFunction(d,a);else if('rand'===e.order)b=.5>Math.random()?1:-1;else if(h===o)b=0;else{if(!e.forceStrings){var p=!!z(h)&&h&&h.match(f),q=!!z(o)&&o&&o.match(f);if(p&&q){var r=h.substr(0,h.length-p[0].length),t=o.substr(0,o.length-q[0].length);r==t&&(g=!0,h=i(p[0]),o=i(q[0]))}}b=e.natural&&(isNaN(h)||isNaN(o))?m(h,o,n):h<o?-1:h>o?1:0}c(l,function(a){var c=a.sort;return c&&(b=c(e,g,h,o,b))}),b*=e.sortReturnNumber,0===b&&s++};0===b&&s<r;)e();return 0===b&&(b=d.pos>a.pos?1:-1),b}function u(){var a=I.length,b=a===H.length,c=a===M.children.length,d=L[0],e=d.place,f=d.console;if(N&&b&&c)Q?I.forEach(function(a,b){return a.elm.style.order=b}):M?M.appendChild(v()):f&&f.warn&&f.warn('parentNode has been removed');else{var g='start'===e,h='end'===e,i='first'===e;if('org'===e)I.forEach(w),I.forEach(function(a,b){return x(K[b],a.elm)});else if(g||h){var j=K[g?0:K.length-1],k=j&&j.elm.parentNode,l=k&&(g&&k.firstChild||k.lastChild);l&&(l!==j.elm&&(j={elm:l}),w(j),h&&k.appendChild(j.ghost),x(j,v()))}else if(i||'last'===e){var m=K[i?0:K.length-1];x(w(m),v())}}}function v(){return I.forEach(function(a){return G.appendChild(a.elm)}),G}function w(a){var b=a.elm,c=h.createElement('div');return a.ghost=c,b.parentNode.insertBefore(c,b),a}function x(a,b){var c=a.ghost,d=c.parentNode;d.insertBefore(b,c),d.removeChild(c),delete a.ghost}function y(a,b){var c,d=a.elm,g=b.selector;g&&(b.hasFilter?!d.matches(g)&&(d=f):d=d.querySelector(g)),b.hasAttr?c=d.getAttribute(b.attr):b.useVal?c=d.value||d.getAttribute('value'):b.hasData?c=d.getAttribute('data-'+b.data):d&&(c=d.textContent),z(c)&&(!b.cases&&(c=c.toLowerCase()),c=c.replace(/\s+/g,' '));var h=[e,f,''].indexOf(c);return-1!==h&&(c=(b.emptyEnd?p:o)[h]),c}function z(a){return'string'==typeof a}var D=B[0]||{};z(a)&&(a=h.querySelectorAll(a));var E=Object.assign({},q,D||{}),F=E.console;0===a.length&&F&&F.warn&&F.warn('No elements to sort');var G=h.createDocumentFragment(),H=[],I=[],J=[],K=[],L=[],M=void 0,N=!0,O=a.length&&a[0].parentNode,P=O.rootNode!==document,Q=a.length&&(D===e||!1!==D.useFlex)&&!P&&-1!==getComputedStyle(O,null).display.indexOf('flex');return r=function(a){return 0===a.length&&d({})||c(a,function(a){return d(z(a)?{selector:a}:a)}).length}(B),g(),I.sort(D.sortFunction||t),u(),I.map(function(a){return a.elm})},{plugin:d,defaults:q})}());

function updateCart(data, callback) {
    let url;
    if (!data.id) {
        url = config.url['api.item.store'];
    } else {
        url = config.url['api.item.update'].replace('%7Bid%7D', data.id);
    }
    $.post(url, data, function (response) {
        if (typeof callback === 'function') {
            callback(response);
        }
    });
}


function setQuantities(el) {
    let $el = $(el);

    let quantity = $el.data('quantity');
    quantity = numeric(quantity, 3);
    $el.find('[name="quantity"]').val(quantity);
    $el.find('[data-label="quantity"]').data('value', quantity);

    let awarded = $el.data('awarded');
    awarded = numeric(awarded, 3);
    $el.find('[data-label="awarded"]').html(awarded);
}

function setSplitLabels(el) {

    let $el = $(el);
    let split = $el.data();
    let $label = $el.find('.status.label');

    if ($label.length === 0) {
        $label = $el.closest('tr').find('.status.label');
    }

    $label.removeClass('label-warning label-success label-danger');

    if (split.splitgroup) {

        let html = split.splitgroup.full + '%';

        if (split.splitgroup.full === 100) {
            $label.addClass('label-success').html(html);
        } else if (split.splitgroup.full > 100) {
            $label.addClass('label-warning').html(html);
        } else {
            $label.addClass('label-danger').html(html);
        }

        $label.closest('[data-label="full"]').data('value', split.splitgroup.full);

        let str = '';
        $.each(split.splitgroup.items, function (idx, sibling) {

            if (!sibling.quantity) {
                return;
            }

            if (!sibling.first_name) {
                return;
            }

            if (sibling.awarded === sibling.quantity) {
                str += '<span class="">' + sibling.first_name + ': ' + sibling.awarded + '</span><br>';
            } else if (sibling.awarded < sibling.quantity) {
                if (sibling.awarded > 0) {
                    str += '<span class="">' + sibling.first_name + ': ' + (sibling.awarded) + '</span><br>';
                }
                str += '<span class="" style="color:red"><s>' + sibling.first_name + ': ' + (sibling.quantity - sibling.awarded) + '</s></span><br>';
            }
        });

        let required = split.units - (split.splitgroup.quantity % split.units);
        if (required > 0 && required !== split.units) {
            str += '<span style="color:red">Nodig: ' + required + '</span>'
        }
        $label.attr('data-content', str);


        let $awarded = $el.find('[data-label="awarded"]');
        if ($awarded.length === 0) {
            $awarded = $el.closest('tr').find('[data-label="awarded"]')
        }
        let awarded = numeric(split.awarded, 3);
        $awarded.html(awarded);
    }
}


function setCartSum() {

    $('table.table-summable').each(function (idx, table) {
        $(table).find('tr').each(function (idx, tr) {

            let subtotal = 0;
            let vat = 0;
            let purchases = 0;

            let single = $(tr).find('[data-class="item"][data-type="single"]').data();
            if (!single) {
                single = $(tr).data();
            }
            if (single && single.type === 'single') {
                subtotal += single.contentQuantityFactor * single.quantity * single.price;
                purchases += single.contentQuantityFactor * single.quantity * single.purchasePrice;
                vat += round_vat(single.contentQuantityFactor * single.quantity * single.price * single.vatPercentage / 100);
            }

            let split = $(tr).find('[data-class="item"][data-type="split"]').data();
            if (!split) {
                split = $(tr).data();
            }
            if (split && split.type === 'split') {
                subtotal += split.contentQuantityFactor * split.awarded * split.price / split.units;
                purchases += split.contentQuantityFactor * split.awarded * split.purchasePrice / split.units;
                vat += round_vat(split.contentQuantityFactor * split.awarded * split.price / split.units * split.vatPercentage / 100);
                // console.log(split.awarded,'x', split.price, '/', split.units, '+=', subtotal, vat);
            }


            $(tr).find('[data-label="subtotal"]').data('value', subtotal+vat).html(money(subtotal + vat));
            $(tr).find('[data-label="subtotal-ex-vat"]').data('value', subtotal).html(money(subtotal));
            $(tr).find('[data-label="subtotal-purchases-ex-vat"]').data('value', purchases).html(money(purchases));
            $(tr).find('[data-label="subtotal-vat"]').data('value', vat).html(money(vat));

        });

    });

    doSumOfColumns();
    setMoney();
    setNumeric();
    tableSorterUpdate();
}


function getCart(response) {

    $('.cart').removeClass('hidden');

    if (response.amount == "0.00") {
        $('.cart .amount').html('');
    } else {
        $('.cart .amount').html(money(response.amount, ''));
    }

    if (response.open_splits) {
        $('.btn--split-info').removeClass('hidden').prop('title', 'Als alle ' + response.open_splits + ' open splits worden gevuld komen er nog ' + money(response.max_amount - response.amount) + ' kosten bij.');
    } else {
        $('.btn--split-info').addClass('hidden').prop('title', '');
    }

    if (response.order_amount < 400) {
        $('.menu .order-thumbs-up').addClass('hidden');
        $('.menu .order-thumbs-up a').attr('title', '');
        $('.menu .order-thumbs-down').removeClass('hidden');
        $('.menu .order-thumbs-down a').attr('title', 'Er is momenteel door de groep ' + money(response.order_amount) + ' excl. BTW besteld. Vanaf €400 gaat de bestelling door.');
    } else {
        $('.menu .order-thumbs-up').removeClass('hidden');
        $('.menu .order-thumbs-down').addClass('hidden');
        $('.menu .order-thumbs-up a').attr('title', 'Er is momenteel door de groep ' + money(response.order_amount) + ' excl. BTW besteld. De bestelling gaat dus door.');
        $('.menu .order-thumbs-down a').attr('title', '');
    }


}


function highlight(selector) {
    $('.highlight').removeClass('highlight');
    $(selector).closest('tr').addClass('highlight');
}

function lowlight() {
}


function money(dec, prefix = '€') {
    // return 'money('+dec+')';
    // return prefix + numeric(dec, 2).toString(); //.replace(/(\d)(?=(\d{3})+\.)/g, "$1,");
    return prefix + formatMoney(dec);
}

function formatMoney(amount, decimalCount = 2, decimal = ".", thousands = ",") {
    try {
        decimalCount = Math.abs(decimalCount);
        decimalCount = isNaN(decimalCount) ? 2 : decimalCount;

        const negativeSign = amount < 0 ? "-" : "";

        let i = parseInt(amount = Math.abs(Number(amount) || 0).toFixed(decimalCount)).toString();
        let j = (i.length > 3) ? i.length % 3 : 0;

        return negativeSign + (j ? i.substr(0, j) + thousands : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thousands) + (decimalCount ? decimal + Math.abs(amount - i).toFixed(decimalCount).slice(2) : "");
    } catch (e) {
        console.log(e)
    }
};

function integer(dec) {
    return numeric(dec, 0);
}

function numeric(input, fixed, trim) {

    if (typeof input === 'undefined') return 0;

    if (input === null) return 0;

    if (typeof fixed === 'undefined') fixed = 3;

    if (typeof trim === 'undefined') trim = true;

    let result = input;

    // force string
    result = result.toString();

    // replace , with .
    result = result.replace(/,/g, '.');

    // remove all other characters
    result = result.replace(/[^0-9.-]/g, '');

    if (result === '') return 0;

    // force float
    result = parseFloat(result);

    // force fixed
    result = result.toFixed(fixed);

    if (fixed) {

        let pattern = null;

        if (fixed === 3)
            pattern = /\.000/g;

        if (fixed === 2)
            pattern = /\.00/g;

        if (fixed === 1)
            pattern = /\.0/g;

        if (pattern !== null) {
            if (pattern.test(result.toString())) {
                result = Math.round(result);
            }
        }
    }

    if (trim) {
        result = result.toString();
    }

    return result;
}

function set_alert(type, message, selector) {
    var glyphicon_class = '';
    if (typeof(selector) === 'undefined') {
        selector = 'body';
    }

    if ((typeof(message) === 'undefined') || (message === '')) {
        $(selector).find('.alerts').hide();
        return;
    }

    if (type === 'danger') glyphicon_class = 'glyphicon glyphicon-remove';
    if (type === 'warning') glyphicon_class = 'glyphicon glyphicon-exclamation-sign';
    if (type === 'info') glyphicon_class = 'glyphicon glyphicon-exclamation-sign';
    if (type === 'success') glyphicon_class = 'glyphicon glyphicon-ok';
    $(selector).find('.alerts').hide().html('<div class="alert alert-' + type + '"><span class="' + glyphicon_class + '"></span> ' + message + '</div>').fadeIn(1000);
}


function sumOfColumns(table, columnIndex) {
    var tot = 0;
    table.find("tr").children("td:nth-child(" + columnIndex + ")")
        .each(function () {
            $this = $(this);
            if (!$this.hasClass("sum") && $this.data('value')) {
                tot += parseFloat($this.data('value'));
            }
        });
    return tot;
}

function doSumOfColumns() {
    $("tr.sum").each(function (i, tr) {
        $(tr).children().each(function (i, td) {
            var table = $(td).parent().parent().parent();
            if ($(td).hasClass("sum")) {
                var columnIndex = $(td).data('sum-column-index');
                if (!columnIndex) columnIndex = i + 1;
                var sum = sumOfColumns(table, columnIndex)
                $(td).data('value', sum);
                $(td).html(sum);
            }
        })
    });
}


function setMoney() {
    $('.money').each(function (i, el) {
        value = $(el).data('value');
        if (value) {
            $(el).html(money(value));
        } else {
            $(el).html('');
        }
    });
}

function setNumeric() {
    $('.integer').each(function (i, el) {
        value = $(el).data('value');
        if (value) {
            $(el).html(numeric(value, 0));
        } else {
            $(el).html(0);
        }
    });

    $('.decimal--2').each(function (i, el) {
        value = $(el).data('value');
        if (value) {
            $(el).html(numeric(value, 2));
        } else {
            $(el).html(0);
        }
    });

    $('.decimal--3').each(function (i, el) {
        value = $(el).data('value');
        if (value) {
            $(el).html(numeric(value, 3));
        } else {
            $(el).html(0);
        }
    });
}

// http://tablesorter.com/docs/index.html
function tableSorterUpdate() {
    $(".table-sortable").trigger("update");
}

/**
 * Set default sorting method for tablesorter
 * @param node
 * @returns {*}
 */
$.tablesorter.defaults.textExtraction = function (node) {
    sort_value = $(node).data('value');
    if (typeof sort_value != "undefined") {
        return sort_value;
    }
    return node.innerHTML; //default
};

// for debugging purposes...
ko.observable.fn.toString = function () {
    return "observable: " + ko.toJSON(this(), null, 2);
};

ko.computed.fn.toString = function () {
    return "computed: " + ko.toJSON(this(), null, 2);
};

function doSumOf(selector, target_el) {
    var sum = 0;
    $(selector).each(function (idx, el) {
        val = $(el).data('value');
        if (val) {
            sum += val;
        }
    });
    $(target_el).data('value', sum).html(money(sum));

}

function round_vat(fl) {
    return Math.round(fl * 100) / 100;
}

function round_half_down(fl) {
    return Math.floor(fl * 100) / 100;
}

function scrollToProduct(id) {
    if (typeof id === 'undefined') return;
    let selector = '[data-product-id="' + id + '"]';
    let $el = $(selector);
    let offset = $el.offset();
    let scrollTop = offset.top - 100;
    $("html, body").animate({
        scrollTop: scrollTop
    }, 1000);
}


function getViewportW() {
    return Math.max(document.documentElement.clientWidth, window.innerWidth || 0)
}

function getViewportH() {
    return Math.max(document.documentElement.clientHeight, window.innerHeight || 0)
}

function jScroll() {
    $('.jscroll').jscroll({
        debug: false,
        contentSelector: '.jscroll',
        pagingSelector: 'ul.pagination',
        nextSelector: 'a[rel="next"]',
        callback: function () {
            let trs = $('.jscroll-added:last tr').remove().clone();
            window.init(trs); // bind events
            $('table:first tbody').append(trs);
            $('.jscroll-added').remove();
        }
    });

}

/**
 * Show tool tip
 * @param el
 */
function showTooltip(el) {
    $(el).tooltip('show');
}

const reload = function () {
    location.reload();
}

const onClickDataRequestUrl = function (e) {

    let $this = $(this);
    let data = $this.data();
    let url = data.requestUrl;
    let callback = null;

    if (typeof data.confirm === 'string') {
        if (!confirm(data.confirm)) {
            return false;
        }
    }

    if (typeof data.requestCallback === 'string') {
        if (typeof (window[data.requestCallback]) == 'function') {
            callback = function (response) {
                return window[data.requestCallback](response, $this);
            }
        } else {
            callback = function (response) {
                return eval(data.requestCallback + "(response, $this)");
            };
        }
    }

    $.post(url, data, callback);
};

const onClickDataHref = function (e) {
    let $this = $(this);
    location.href = $this.data('href');
}


const $setErrors = function (element, errors) {
    let $element = $(element);
    $element.find('.error-message').remove();
    $element.each(errors, function (el, messages) { // @todo Check parameters
        let $el = $('[name="' + el + '"]');
        let html = '<span class="error-message">' + messages[0] + '</span>';
        $el2.addClass('error').after(html);
    });
}

const toCamel = (s) => {
    return s.replace(/([-_][a-z])/ig, ($1) => {
        return $1.toUpperCase()
          .replace('-', '')
          .replace('_', '');
    });
};


const toSnake = (str) => {
    return str.replace(/[A-Z]/g, letter => `_${letter.toLowerCase()}`);
};

const isArray = function (a) {
    return Array.isArray(a);
};

const isObject = function (o) {
    return o === Object(o) && !isArray(o) && typeof o !== 'function';
};

// const keysToCamel = function (o) {
//     if (isObject(o)) {
//         const n = {};
//
//         Object.keys(o)
//           .forEach((k) => {
//               n[toCamel(k)] = keysToCamel(o[k]);
//           });
//
//         return n;
//     } else if (isArray(o)) {
//         return o.map((i) => {
//             return keysToCamel(i);
//         });
//     }
//
//     return o;
// };

const keysToSnake = function (o) {
    if (isObject(o)) {
        const n = {};

        Object.keys(o)
            .forEach((k) => {
                n[toSnake(k)] = keysToSnake(o[k]);
            });

        return n;
    } else if (isArray(o)) {
        return o.map((i) => {
            return keysToSnake(i);
        });
    }

    return o;
};


function $popover(el) {
    let $el = $(el);
    let $info = $el.closest('tr').find('[rel="popover"]');
    $('[rel="popover"]').popover('hide');
    $info.popover('toggle');
}

function isNull(val) {
    return val === null;
}

function showLoadingIndicator() {
    $('#loading').show();
}

function hideLoadingIndicator() {
    $('#loading').hide();
}

function setForceInputCurrency(idx) {
    let $this = $(this);
    $this.keydown(function(e){
        $this.data('original', $this.val());
    }).keyup(function(){
        let value = $this.val().replace(",", ".");
        let pattern = /^-?[0-9]*\.?[0-9]?[0-9]?$/;
        let match = pattern.test(value);
        if (match) {
            $this.val(value);
        } else {
            $this.val($this.data('original'));
        }
    });
}

// Show popups
function $bindPopovers(element) {
    $(element).find('[rel="popover"]')
        .popover({
            html: true,
            trigger: 'manual',
            placement: 'auto',
            content: function() {
                let elementId =  "tmp-id-" + $.now();
                let link = config.url['api.product.popover'].replace('%7Bid%7D', $(this).data('content-id'));
                return details_in_popup(link, elementId);
            }
        })
        .click(function (e) {
            $('[rel="popover"]').not(this).popover('hide');
            $(this).popover('toggle');
        });
}

function details_in_popup(url, elementId){
    $.ajax({
        url: url,
        success: function(response){
            $('#'+elementId).html(response);
        }
    });
    return '<div id="'+ elementId +'">Loading...</div>';
}


// Hide popovers when user clicks outside of popover
function $hidePopovers(element) {
    $(element).click(function (e) {
        if (!$(e.target).is('[rel="popover"]') && !$(e.target).is('a')) {
            $('[rel="popover"]').popover('hide');
        }
    });
}

function init(element) {
    let $element = $(element);
    $element.find('[data-request-url]').click(onClickDataRequestUrl);
    $element.find('[data-href]').click(onClickDataHref);
    $element.find('[data-message]').each(setMessage);
    $element.find('input.force-currency').each(setForceInputCurrency);
    // $('[data-toggle="tooltip"]').tooltip();
    $bindPopovers(element);
    $hidePopovers(document);

    if (typeof window.errors !== 'undefined') {
        $setErrors(element, window.errors);
    }
}

window.app = {};

// init all datepickers
$(".datepicker").each(function (el) {
    $(this).datetimepicker({
        locale: 'nl',
        format: 'DD-MM-YYYY'
    });
});

// init all datetimepickers
$(".datetimepicker").each(function (el) {
    $(this).datetimepicker({
        locale: 'nl',
        format: 'DD-MM-YYYY HH:mm',
        sideBySide: true,
        calendarWeeks: true,
        stepping: 10
    })
});

$('.btn--submit-form').click(function () {
    showLoadingIndicator();
    $(this).closest('form').submit();
});

// on every form submit...
$('form').bind('submit', function () {
    let $form = $(this);

    // convert value for datetimepickers to server format
    $form.find('.datetimepicker').each(function (idx, el) {
        $(el).data('DateTimePicker').format('YYYY-MM-DD HH:mm:00'); // Add trailing zeros
    });

    // convert value for datepickers to server format
    $form.find('.datepicker').each(function (idx, el) {
        $(el).data('DateTimePicker').format('YYYY-MM-DD');
    });
});


$('.btn--create-split').click(function (e) {

    let $this = $(this);
    let $el = $this.closest('[data-class="item"]');
    let elData = keysToSnake($el.data());
    let product_id = elData.product_id;
    let content = elData.content;


    // true 1x250 gr, 1x25 kg, 250gr, 25kg
    // false 2x250 gr, 11x25 kg
    let is_bulk = (content.substr(0, 2) === '1x') || (content.indexOf('x') === -1);
    let message = 'Dit artikel heeft een inhoud ' + content + '. Je zult dit artikel uit de verpakking moeten halen om het te kunnen verdelen. ' + "\n" + 'Weet je zeker dat je dit wilt splitsen?';

    if (!is_bulk || confirm(message)) {

        let data = {
            type: "split",
            quantity: "1",
            product_id: product_id
        };

        updateCart(data, function (response) {
            if (!response.error && response.data && response.data.item.product_id && response.data.item.product_id) {
                location.href = config.url['my.cart.splits'] + '?product_id=' + response.data.item.product_id;
            }
        });
    }
});


$('.btn--delete-from-cart').click(function () {
    let $el = $(this).closest('[data-class="item"]');
    let item = keysToSnake($el.data());
    if (!item.quantity) item.quantity = 0;
    item.quantity = numeric(item.quantity, 3);
    item.quantity--;

    let data = {
        id: item.id,
        type: item.type,
        quantity: item.quantity,
        product_id: item.product_id,
        user_id: item.user_id
    };

    updateCart(data, function (response) {
        if (response.data) {
            let elData = {};
            elData = response.data.item;
            elData.splitgroup = response.data.splitgroup;
            $el.data(keysToSnake(elData));
            setQuantities($el);
            setSplitLabels($el);
            getCart(response.data.cart);
            setCartSum();
            tableSorterUpdate();
            highlight($el);
            if (response.data.item.type === 'split') {
                scrollToProduct(response.data.item.product_id);
            }
        }
    });
});

$('.btn--add-to-cart').click(function () {
    let $el = $(this).closest('[data-class="item"]');
    let item = keysToSnake($el.data());
    if (!item.quantity) item.quantity = 0;
    item.quantity = numeric(item.quantity, 3);
    item.quantity++;

    let data = {
        id: item.id,
        type: item.type,
        quantity: item.quantity,
        product_id: item.product_id,
        user_id: item.user_id
    };

    updateCart(data, function (response) {
        if (response.data) {
            let elData = {};
            elData = response.data.item;
            elData.splitgroup = response.data.splitgroup;
            $el.data(keysToSnake(elData));
            setQuantities($el);
            setSplitLabels($el);
            getCart(response.data.cart);
            setCartSum();
            tableSorterUpdate();
            highlight($el);
            if (response.data.item.type === 'split') {
                scrollToProduct(response.data.item.product_id);
            }
        }
    });
});

$('[name="quantity"]').change(function () {
    let $this = $(this);
    let $el = $this.closest('[data-class="item"]');
    let item = keysToSnake($el.data());
    item.quantity = numeric($this.val(), 3);

    let data = {
        id: item.id,
        type: item.type,
        quantity: item.quantity,
        product_id: item.product_id,
        user_id: item.user_id
    };

    updateCart(data, function (response) {
        if (response.data) {
            let elData = {};
            elData = response.data.item;
            elData.splitgroup = response.data.splitgroup;
            $el.data(keysToSnake(elData));
            setQuantities($el);
            setSplitLabels($el);
            getCart(response.data.cart);
            setCartSum();
            tableSorterUpdate();
            highlight($el);
            if (response.data.item.type === 'split') {
                scrollToProduct(response.data.item.product_id);
            }
        }
    });

})

$('[data-class="item"]').each(function (idx, el) {
    let $el = $(el);
    setQuantities($el);
    setSplitLabels($el);
});


$('.btn--toggle-favourite').click(function (e) {
    let $this = $(this);
    let elData = keysToSnake($this.data());
    let product_id = elData.product_id;
    var url = config.url['api.favourite.toggle'].replace('%7Bid%7D', product_id);
    $.get(url, function (response) {
        if (response) {
            let $span = $this.find('span');
            let classesSaved = 'glyphicon-star favourite-saved';
            let classesNotSaved = 'glyphicon-star-empty favourite-not-saved';
            if (response.data && response.data.id) {
                $span.removeClass(classesNotSaved).addClass(classesSaved);
            } else {
                $span.removeClass(classesSaved).addClass(classesNotSaved);
            }
        }
    });
});

setCartSum();
tableSorterUpdate();


setMessage = function (idx) {
    let $this = $(this);
    let message = $this.data('message');
    let messageKeys = Object.keys(message);
    let messageKeyCount = messageKeys.length;
    let title = '';
    let url = null;

    if (messageKeyCount > 0) {
        if (messageKeyCount > 1) {
            title = 'Er zijn meerdere meldingen.';
        } else {
            let firstKey = messageKeys[0];
            let firstKeyMessage = message[firstKey][0];

            if (typeof firstKeyMessage.message !== 'undefined') {
                title = firstKeyMessage.message;
                url = firstKeyMessage.url ? firstKeyMessage.url : null;
            } else {
                title = firstKeyMessage;
            }
        }
        let append = '<span class="glyphicon glyphicon-exclamation-sign color--lightgreen ml-1" title="' + title + '"';
        if (url) {
            append += ' onclick="window.location=\'' + url + '\'"';
        }
        append += '></span>';
        $this.append(append);
        $this.prop('title', title);
    }
}


/**
 * Bind ajax call to elements with data-request-url attribute
 *
 */
$(document).ready(function () {
    init(document);
});

console.log("js.php: Loaded version 1708354326");