GIF89;aGIF89;aGIF89;a

Team Anon Force

https://t.me/Professor6T9x

Professor6T9 Web SheLL

Windows NT WEB-23 10.0 build 17763 (Windows Server 2016) i586
Microsoft-IIS/10.0
103.118.16.173

knockout-2.1.0.debug.js

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// Knockout JavaScript library v2.1.0 // (c) Steven Sanderson - http://knockoutjs.com/ // License: MIT (http://www.opensource.org/licenses/mit-license.php)  (function(window,document,navigator,undefined){ var DEBUG=true; !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);     } else if (typeof define === 'function' && define['amd']) {         // [2] AMD anonymous module         define(['exports'], factory);     } else {         // [3] No module loader (plain <script> tag) - put directly in global namespace         factory(window['ko'] = {});     } }(function(koExports){ // 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 = "2.1.0";  ko.exportSymbol('version', ko.version); ko.utils = new (function () {     var stringTrimRegex = /^(\s|\u00A0)+|(\s|\u00A0)+$/g;      // Represent the known event types in a compact way, then at runtime transform it into a hash with event name as key (for fast lookup)     var knownEvents = {}, knownEventTypesByEventName = {};     var keyEventTypeName = /Firefox\/2/i.test(navigator.userAgent) ? 'KeyboardEvent' : 'UIEvents';     knownEvents[keyEventTypeName] = ['keyup', 'keydown', 'keypress'];     knownEvents['MouseEvents'] = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'mouseover', 'mouseout', 'mouseenter', 'mouseleave'];     for (var eventType in knownEvents) {         var knownEventsForType = knownEvents[eventType];         if (knownEventsForType.length) {             for (var i = 0, j = knownEventsForType.length; i < j; i++)                 knownEventTypesByEventName[knownEventsForType[i]] = eventType;         }     }     var eventsThatMustBeRegisteredUsingAttachEvent = { 'propertychange': true }; // Workaround for an IE9 issue - https://github.com/SteveSanderson/knockout/issues/406      // Detect IE versions for bug workarounds (uses IE conditionals, not UA string, for robustness)     var ieVersion = (function() {         var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');          // Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment         while (             div.innerHTML = '',             iElems[0]         );         return version > 4 ? version : undefined;     }());     var isIe6 = ieVersion === 6,         isIe7 = ieVersion === 7;      function isClickOnCheckableElement(element, eventType) {         if ((ko.utils.tagNameLower(element) !== "input") || !element.type) return false;         if (eventType.toLowerCase() != "click") return false;         var inputType = element.type;         return (inputType == "checkbox") || (inputType == "radio");     }      return {         fieldsIncludedWithJsonPost: ['authenticity_token', /^__RequestVerificationToken(_.*)?$/],          arrayForEach: function (array, action) {             for (var i = 0, j = array.length; i < j; i++)                 action(array[i]);         },          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]))                     return array[i];             return null;         },          arrayRemoveItem: function (array, itemToRemove) {             var index = ko.utils.arrayIndexOf(array, itemToRemove);             if (index >= 0)                 array.splice(index, 1);         },          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]));             return result;         },          arrayFilter: function (array, predicate) {             array = array || [];             var result = [];             for (var i = 0, j = array.length; i < j; i++)                 if (predicate(array[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;         },          extend: function (target, source) {             if (source) {                 for(var prop in source) {                     if(source.hasOwnProperty(prop)) {                         target[prop] = source[prop];                     }                 }             }             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++) {                 ko.cleanNode(nodesArray[i]);                 container.appendChild(nodesArray[i]);             }             return container;         },          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]);                 }             }         },          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 (navigator.userAgent.indexOf("MSIE 6") >= 0)                 optionNode.setAttribute("selected", isSelected);             else                 optionNode.selected = isSelected;         },          stringTrim: function (string) {             return (string || "").replace(stringTrimRegex, "");         },          stringTokenize: function (string, delimiter) {             var result = [];             var tokens = (string || "").split(delimiter);             for (var i = 0, j = tokens.length; i < j; i++) {                 var trimmed = ko.utils.stringTrim(tokens[i]);                 if (trimmed !== "")                     result.push(trimmed);             }             return result;         },          stringStartsWith: function (string, startsWith) {             string = string || "";             if (startsWith.length > string.length)                 return false;             return string.substring(0, startsWith.length) === startsWith;         },          buildEvalWithinScopeFunction: function (expression, scopeLevels) {             // Build the source for a function that evaluates "expression"             // For each scope variable, add an extra level of "with" nesting             // Example result: with(sc[1]) { with(sc[0]) { return (expression) } }             var functionBody = "return (" + expression + ")";             for (var i = 0; i < scopeLevels; i++) {                 functionBody = "with(sc[" + i + "]) { " + functionBody + " } ";             }             return new Function("sc", functionBody);         },          domNodeIsContainedBy: function (node, containedByNode) {             if (containedByNode.compareDocumentPosition)                 return (containedByNode.compareDocumentPosition(node) & 16) == 16;             while (node != null) {                 if (node == containedByNode)                     return true;                 node = node.parentNode;             }             return false;         },          domNodeIsAttachedToDocument: function (node) {             return ko.utils.domNodeIsContainedBy(node, node.ownerDocument);         },          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 && typeof jQuery != "undefined") {                 if (isClickOnCheckableElement(element, eventType)) {                     // For click events on checkboxes, jQuery interferes with the event handling in an awkward way:                     // it toggles the element checked state *after* the click event handlers run, whereas native                     // click events toggle the checked state *before* the event handler.                     // Fix this by intecepting the handler and applying the correct checkedness before it runs.                     var originalHandler = handler;                     handler = function(event, eventData) {                         var jQuerySuppliedCheckedState = this.checked;                         if (eventData)                             this.checked = eventData.checkedStateBeforeEvent !== true;                         originalHandler.call(this, event);                         this.checked = jQuerySuppliedCheckedState; // Restore the state jQuery applied                     };                 }                 jQuery(element)['bind'](eventType, handler);             } else if (!mustUseAttachEvent && typeof element.addEventListener == "function")                 element.addEventListener(eventType, handler, false);             else if (typeof element.attachEvent != "undefined")                 element.attachEvent("on" + eventType, function (event) {                     handler.call(element, event);                 });             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");              if (typeof jQuery != "undefined") {                 var eventData = [];                 if (isClickOnCheckableElement(element, eventType)) {                     // Work around the jQuery "click events on checkboxes" issue described above by storing the original checked state before triggering the handler                     eventData.push({ checkedStateBeforeEvent: element.checked });                 }                 jQuery(element)['trigger'](eventType, eventData);             } 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 (typeof element.fireEvent != "undefined") {                 // Unlike other browsers, IE doesn't change the checked state of checkboxes/radiobuttons when you trigger their "click" event                 // so to make it consistent, we'll do it manually here                 if (isClickOnCheckableElement(element, eventType))                     element.checked = element.checked !== true;                 element.fireEvent("on" + eventType);             }             else                 throw new Error("Browser doesn't support triggering events");         },          unwrapObservable: function (value) {             return ko.isObservable(value) ? value() : value;         },          toggleDomNodeCssClass: function (node, className, shouldHaveClass) {             var currentClassNames = (node.className || "").split(/\s+/);             var hasClass = ko.utils.arrayIndexOf(currentClassNames, className) >= 0;              if (shouldHaveClass && !hasClass) {                 node.className += (currentClassNames[0] ? " " : "") + className;             } else if (hasClass && !shouldHaveClass) {                 var newClassName = "";                 for (var i = 0; i < currentClassNames.length; i++)                     if (currentClassNames[i] != className)                         newClassName += currentClassNames[i] + " ";                 node.className = ko.utils.stringTrim(newClassName);             }         },          setTextContent: function(element, textContent) {             var value = ko.utils.unwrapObservable(textContent);             if ((value === null) || (value === undefined))                 value = "";              'innerText' in element ? element.innerText = value                                    : element.textContent = value;              if (ieVersion >= 9) {                 // Believe it or not, this actually fixes an IE9 rendering bug                 // (See https://github.com/SteveSanderson/knockout/issues/209)                 element.style.display = element.style.display;             }         },          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)             if (ieVersion >= 9) {                 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 (window.JSON && window.JSON.parse) // Use native parsing where available                         return window.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 ((typeof JSON == "undefined") || (typeof JSON.stringify == "undefined"))                 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) {                 var input = document.createElement("input");                 input.name = key;                 input.value = ko.utils.stringifyJson(ko.utils.unwrapObservable(data[key]));                 form.appendChild(input);             }             for (var key in params) {                 var input = document.createElement("input");                 input.name = key;                 input.value = params[key];                 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.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);  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 = {};     return {         get: function (node, key) {             var allDataForNode = ko.utils.domData.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 (ko.utils.domData.getAll(node, false) === undefined)                     return;             }             var allDataForNode = ko.utils.domData.getAll(node, true);             allDataForNode[key] = value;         },         getAll: function (node, createIfNotFound) {             var dataStoreKey = node[dataStoreKeyExpandoPropertyName];             var hasExistingDataStore = dataStoreKey && (dataStoreKey !== "null");             if (!hasExistingDataStore) {                 if (!createIfNotFound)                     return undefined;                 dataStoreKey = node[dataStoreKeyExpandoPropertyName] = "ko" + uniqueId++;                 dataStore[dataStoreKey] = {};             }             return dataStore[dataStoreKey];         },         clear: function (node) {             var dataStoreKey = node[dataStoreKeyExpandoPropertyName];             if (dataStoreKey) {                 delete dataStore[dataStoreKey];                 node[dataStoreKeyExpandoPropertyName] = null;             }         }     } })();  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_domNodeDisposal__" + (new Date).getTime();     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);         }          // Also erase the DOM data         ko.utils.domData.clear(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 ((typeof jQuery == "function") && (typeof jQuery['cleanData'] == "function"))             jQuery['cleanData']([node]);          // Also 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]);                 }             }         },          removeNode : function(node) {             ko.cleanNode(node);             if (node.parentNode)                 node.parentNode.removeChild(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>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) {         var elems = jQuery['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 typeof jQuery != 'undefined' ? 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);          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 (typeof jQuery != 'undefined') {                 jQuery(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 "";         },          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);             }         });     },      'notify': function(target, notifyWhen) {         target["equalityComparer"] = notifyWhen == "always"             ? function() { return false } // Treat all values as not equal             : ko.observable["fn"]["equalityComparer"];         return target;     } };  function applyExtenders(requestedExtenders) {     var target = this;     if (requestedExtenders) {         for (var key in requestedExtenders) {             var extenderHandler = ko.extenders[key];             if (typeof extenderHandler == 'function') {                 target = extenderHandler(target, requestedExtenders[key]);             }         }     }     return target; }  ko.exportSymbol('extenders', ko.extenders);  ko.subscription = function (target, callback, disposeCallback) {     this.target = target;     this.callback = callback;     this.disposeCallback = disposeCallback;     ko.exportProperty(this, 'dispose', this.dispose); }; ko.subscription.prototype.dispose = function () {     this.isDisposed = true;     this.disposeCallback(); };  ko.subscribable = function () {     this._subscriptions = {};      ko.utils.extend(this, ko.subscribable['fn']);     ko.exportProperty(this, 'subscribe', this.subscribe);     ko.exportProperty(this, 'extend', this.extend);     ko.exportProperty(this, 'getSubscriptionsCount', this.getSubscriptionsCount); }  var defaultEvent = "change";  ko.subscribable['fn'] = {     subscribe: function (callback, callbackTarget, event) {         event = event || defaultEvent;         var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;          var subscription = new ko.subscription(this, boundCallback, function () {             ko.utils.arrayRemoveItem(this._subscriptions[event], subscription);         }.bind(this));          if (!this._subscriptions[event])             this._subscriptions[event] = [];         this._subscriptions[event].push(subscription);         return subscription;     },      "notifySubscribers": function (valueToNotify, event) {         event = event || defaultEvent;         if (this._subscriptions[event]) {             ko.utils.arrayForEach(this._subscriptions[event].slice(0), function (subscription) {                 // In case a subscription was disposed during the arrayForEach cycle, check                 // for isDisposed on each subscription before invoking its callback                 if (subscription && (subscription.isDisposed !== true))                     subscription.callback(valueToNotify);             });         }     },      getSubscriptionsCount: function () {         var total = 0;         for (var eventName in this._subscriptions) {             if (this._subscriptions.hasOwnProperty(eventName))                 total += this._subscriptions[eventName].length;         }         return total;     },      extend: applyExtenders };   ko.isSubscribable = function (instance) {     return typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function"; };  ko.exportSymbol('subscribable', ko.subscribable); ko.exportSymbol('isSubscribable', ko.isSubscribable);  ko.dependencyDetection = (function () {     var _frames = [];      return {         begin: function (callback) {             _frames.push({ callback: callback, distinctDependencies:[] });         },          end: function () {             _frames.pop();         },          registerDependency: function (subscribable) {             if (!ko.isSubscribable(subscribable))                 throw new Error("Only subscribable things can act as dependencies");             if (_frames.length > 0) {                 var topFrame = _frames[_frames.length - 1];                 if (ko.utils.arrayIndexOf(topFrame.distinctDependencies, subscribable) >= 0)                     return;                 topFrame.distinctDependencies.push(subscribable);                 topFrame.callback(subscribable);             }         }     }; })(); var primitiveTypes = { 'undefined':true, 'boolean':true, 'number':true, 'string':true };  ko.observable = function (initialValue) {     var _latestValue = initialValue;      function observable() {         if (arguments.length > 0) {             // Write              // Ignore writes if the value hasn't changed             if ((!observable['equalityComparer']) || !observable['equalityComparer'](_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;         }     }     if (DEBUG) observable._latestValue = _latestValue;     ko.subscribable.call(observable);     observable.valueHasMutated = function () { observable["notifySubscribers"](_latestValue); }     observable.valueWillMutate = function () { observable["notifySubscribers"](_latestValue, "beforeChange"); }     ko.utils.extend(observable, ko.observable['fn']);      ko.exportProperty(observable, "valueHasMutated", observable.valueHasMutated);     ko.exportProperty(observable, "valueWillMutate", observable.valueWillMutate);      return observable; }  ko.observable['fn'] = {     "equalityComparer": function valuesArePrimitiveAndEqual(a, b) {         var oldValueIsPrimitive = (a === null) || (typeof(a) in primitiveTypes);         return oldValueIsPrimitive ? (a === b) : false;     } };  var protoProperty = ko.observable.protoProperty = "__ko_proto__"; ko.observable['fn'][protoProperty] = ko.observable;  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.observableArray = function (initialValues) {     if (arguments.length == 0) {         // Zero-parameter constructor initializes to empty array         initialValues = [];     }     if ((initialValues !== null) && (initialValues !== undefined) && !('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.extend(result, ko.observableArray['fn']);     return result; }  ko.observableArray['fn'] = {     'remove': function (valueOrPredicate) {         var underlyingArray = this();         var removedValues = [];         var predicate = typeof valueOrPredicate == "function" ? 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();             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();         var predicate = typeof valueOrPredicate == "function" ? 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()[index] = newItem;             this.valueHasMutated();         }     } }  // Populate ko.observableArray.fn with read/write functions from native arrays ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], function (methodName) {     ko.observableArray['fn'][methodName] = function () {         var underlyingArray = this();         this.valueWillMutate();         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);     }; });  ko.exportSymbol('observableArray', ko.observableArray); ko.dependentObservable = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget, options) {     var _latestValue,         _hasBeenEvaluated = false,         _isBeingEvaluated = false,         readFunction = evaluatorFunctionOrOptions;      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"];     }     // By here, "options" is always non-null     if (typeof readFunction != "function")         throw new Error("Pass a function that returns the value of the ko.computed");      var writeFunction = options["write"];     if (!evaluatorFunctionTarget)         evaluatorFunctionTarget = options["owner"];      var _subscriptionsToDependencies = [];     function disposeAllSubscriptionsToDependencies() {         ko.utils.arrayForEach(_subscriptionsToDependencies, function (subscription) {             subscription.dispose();         });         _subscriptionsToDependencies = [];     }     var dispose = disposeAllSubscriptionsToDependencies;      // Build "disposeWhenNodeIsRemoved" and "disposeWhenNodeIsRemovedCallback" option values     // (Note: "disposeWhenNodeIsRemoved" option both proactively disposes as soon as the node is removed using ko.removeNode(),     // plus adds a "disposeWhen" callback that, on each evaluation, disposes if the node was removed by some other means.)     var disposeWhenNodeIsRemoved = (typeof options["disposeWhenNodeIsRemoved"] == "object") ? options["disposeWhenNodeIsRemoved"] : null;     var disposeWhen = options["disposeWhen"] || function() { return false; };     if (disposeWhenNodeIsRemoved) {         dispose = function() {             ko.utils.domNodeDisposal.removeDisposeCallback(disposeWhenNodeIsRemoved, arguments.callee);             disposeAllSubscriptionsToDependencies();         };         ko.utils.domNodeDisposal.addDisposeCallback(disposeWhenNodeIsRemoved, dispose);         var existingDisposeWhenFunction = disposeWhen;         disposeWhen = function () {             return !ko.utils.domNodeIsAttachedToDocument(disposeWhenNodeIsRemoved) || existingDisposeWhenFunction();         }     }      var evaluationTimeoutInstance = null;     function evaluatePossiblyAsync() {         var throttleEvaluationTimeout = dependentObservable['throttleEvaluation'];         if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {             clearTimeout(evaluationTimeoutInstance);             evaluationTimeoutInstance = setTimeout(evaluateImmediate, throttleEvaluationTimeout);         } else             evaluateImmediate();     }      function evaluateImmediate() {         if (_isBeingEvaluated) {             // 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;         }          // Don't dispose on first evaluation, because the "disposeWhen" callback might         // e.g., dispose when the associated DOM element isn't in the doc, and it's not         // going to be in the doc until *after* the first evaluation         if (_hasBeenEvaluated && disposeWhen()) {             dispose();             return;         }          _isBeingEvaluated = true;         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 = ko.utils.arrayMap(_subscriptionsToDependencies, function(item) {return item.target;});              ko.dependencyDetection.begin(function(subscribable) {                 var inOld;                 if ((inOld = ko.utils.arrayIndexOf(disposalCandidates, subscribable)) >= 0)                     disposalCandidates[inOld] = undefined; // Don't want to dispose this subscription, as it's still being used                 else                     _subscriptionsToDependencies.push(subscribable.subscribe(evaluatePossiblyAsync)); // Brand new subscription - add it             });              var newValue = readFunction.call(evaluatorFunctionTarget);              // For each subscription no longer being used, remove it from the active subscriptions list and dispose it             for (var i = disposalCandidates.length - 1; i >= 0; i--) {                 if (disposalCandidates[i])                     _subscriptionsToDependencies.splice(i, 1)[0].dispose();             }             _hasBeenEvaluated = true;              dependentObservable["notifySubscribers"](_latestValue, "beforeChange");             _latestValue = newValue;             if (DEBUG) dependentObservable._latestValue = _latestValue;         } finally {             ko.dependencyDetection.end();         }          dependentObservable["notifySubscribers"](_latestValue);         _isBeingEvaluated = false;      }      function dependentObservable() {         if (arguments.length > 0) {             set.apply(dependentObservable, arguments);         } else {             return get();         }     }      function set() {         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.");         }     }      function get() {         // Reading the value         if (!_hasBeenEvaluated)             evaluateImmediate();         ko.dependencyDetection.registerDependency(dependentObservable);         return _latestValue;     }      dependentObservable.getDependenciesCount = function () { return _subscriptionsToDependencies.length; };     dependentObservable.hasWriteFunction = typeof options["write"] === "function";     dependentObservable.dispose = function () { dispose(); };      ko.subscribable.call(dependentObservable);     ko.utils.extend(dependentObservable, ko.dependentObservable['fn']);      if (options['deferEvaluation'] !== true)         evaluateImmediate();      ko.exportProperty(dependentObservable, 'dispose', dependentObservable.dispose);     ko.exportProperty(dependentObservable, 'getDependenciesCount', dependentObservable.getDependenciesCount);      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'] = {}; ko.dependentObservable['fn'][protoProp] = ko.dependentObservable;  ko.exportSymbol('dependentObservable', ko.dependentObservable); ko.exportSymbol('computed', ko.dependentObservable); // Make "ko.computed" an alias for "ko.dependentObservable" ko.exportSymbol('isComputed', ko.isComputed);  (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));         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() {         var keys = [];         var values = [];         this.save = function(key, value) {             var existingIndex = ko.utils.arrayIndexOf(keys, key);             if (existingIndex >= 0)                 values[existingIndex] = value;             else {                 keys.push(key);                 values.push(value);             }         };         this.get = function(key) {             var existingIndex = ko.utils.arrayIndexOf(keys, key);             return (existingIndex >= 0) ? 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 element.getAttribute("value");                 case 'select':                     return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;                 default:                     return element.value;             }         },          writeValue: function(element, value) {             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':                     for (var i = element.options.length - 1; i >= 0; i--) {                         if (ko.selectExtensions.readValue(element.options[i]) == value) {                             element.selectedIndex = i;                             break;                         }                     }                     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.jsonExpressionRewriting = (function () {     var restoreCapturedTokensRegex = /\@ko_token_(\d+)\@/g;     var javaScriptAssignmentTarget = /^[\_$a-z][\_$a-z0-9]*(\[.*?\])*(\.[\_$a-z][\_$a-z0-9]*(\[.*?\])*)*$/i;     var javaScriptReservedWords = ["true", "false"];      function restoreTokens(string, tokens) {         var prevValue = null;         while (string != prevValue) { // Keep restoring tokens until it no longer makes a difference (they may be nested)             prevValue = string;             string = string.replace(restoreCapturedTokensRegex, function (match, tokenIndex) {                 return tokens[tokenIndex];             });         }         return string;     }      function isWriteableValue(expression) {         if (ko.utils.arrayIndexOf(javaScriptReservedWords, ko.utils.stringTrim(expression).toLowerCase()) >= 0)             return false;         return expression.match(javaScriptAssignmentTarget) !== null;     }      function ensureQuoted(key) {         var trimmedKey = ko.utils.stringTrim(key);         switch (trimmedKey.length && trimmedKey.charAt(0)) {             case "'":             case '"':                 return key;             default:                 return "'" + trimmedKey + "'";         }     }      return {         bindingRewriteValidators: [],          parseObjectLiteral: function(objectLiteralString) {             // A full tokeniser+lexer would add too much weight to this library, so here's a simple parser             // that is sufficient just to split an object literal string into a set of top-level key-value pairs              var str = ko.utils.stringTrim(objectLiteralString);             if (str.length < 3)                 return [];             if (str.charAt(0) === "{")// Ignore any braces surrounding the whole object literal                 str = str.substring(1, str.length - 1);              // Pull out any string literals and regex literals             var tokens = [];             var tokenStart = null, tokenEndChar;             for (var position = 0; position < str.length; position++) {                 var c = str.charAt(position);                 if (tokenStart === null) {                     switch (c) {                         case '"':                         case "'":                         case "/":                             tokenStart = position;                             tokenEndChar = c;                             break;                     }                 } else if ((c == tokenEndChar) && (str.charAt(position - 1) !== "\\")) {                     var token = str.substring(tokenStart, position + 1);                     tokens.push(token);                     var replacement = "@ko_token_" + (tokens.length - 1) + "@";                     str = str.substring(0, tokenStart) + replacement + str.substring(position + 1);                     position -= (token.length - replacement.length);                     tokenStart = null;                 }             }              // Next pull out balanced paren, brace, and bracket blocks             tokenStart = null;             tokenEndChar = null;             var tokenDepth = 0, tokenStartChar = null;             for (var position = 0; position < str.length; position++) {                 var c = str.charAt(position);                 if (tokenStart === null) {                     switch (c) {                         case "{": tokenStart = position; tokenStartChar = c;                                   tokenEndChar = "}";                                   break;                         case "(": tokenStart = position; tokenStartChar = c;                                   tokenEndChar = ")";                                   break;                         case "[": tokenStart = position; tokenStartChar = c;                                   tokenEndChar = "]";                                   break;                     }                 }                  if (c === tokenStartChar)                     tokenDepth++;                 else if (c === tokenEndChar) {                     tokenDepth--;                     if (tokenDepth === 0) {                         var token = str.substring(tokenStart, position + 1);                         tokens.push(token);                         var replacement = "@ko_token_" + (tokens.length - 1) + "@";                         str = str.substring(0, tokenStart) + replacement + str.substring(position + 1);                         position -= (token.length - replacement.length);                         tokenStart = null;                     }                 }             }              // Now we can safely split on commas to get the key/value pairs             var result = [];             var keyValuePairs = str.split(",");             for (var i = 0, j = keyValuePairs.length; i < j; i++) {                 var pair = keyValuePairs[i];                 var colonPos = pair.indexOf(":");                 if ((colonPos > 0) && (colonPos < pair.length - 1)) {                     var key = pair.substring(0, colonPos);                     var value = pair.substring(colonPos + 1);                     result.push({ 'key': restoreTokens(key, tokens), 'value': restoreTokens(value, tokens) });                 } else {                     result.push({ 'unknown': restoreTokens(pair, tokens) });                 }             }             return result;         },          insertPropertyAccessorsIntoJson: function (objectLiteralStringOrKeyValueArray) {             var keyValueArray = typeof objectLiteralStringOrKeyValueArray === "string"                 ? ko.jsonExpressionRewriting.parseObjectLiteral(objectLiteralStringOrKeyValueArray)                 : objectLiteralStringOrKeyValueArray;             var resultStrings = [], propertyAccessorResultStrings = [];              var keyValueEntry;             for (var i = 0; keyValueEntry = keyValueArray[i]; i++) {                 if (resultStrings.length > 0)                     resultStrings.push(",");                  if (keyValueEntry['key']) {                     var quotedKey = ensureQuoted(keyValueEntry['key']), val = keyValueEntry['value'];                     resultStrings.push(quotedKey);                     resultStrings.push(":");                     resultStrings.push(val);                      if (isWriteableValue(ko.utils.stringTrim(val))) {                         if (propertyAccessorResultStrings.length > 0)                             propertyAccessorResultStrings.push(", ");                         propertyAccessorResultStrings.push(quotedKey + " : function(__ko_value) { " + val + " = __ko_value; }");                     }                 } else if (keyValueEntry['unknown']) {                     resultStrings.push(keyValueEntry['unknown']);                 }             }              var combinedResult = resultStrings.join("");             if (propertyAccessorResultStrings.length > 0) {                 var allPropertyAccessors = propertyAccessorResultStrings.join("");                 combinedResult = combinedResult + ", '_ko_property_writers' : { " + allPropertyAccessors + " } ";             }              return combinedResult;         },          keyValueArrayContainsKey: function(keyValueArray, key) {             for (var i = 0; i < keyValueArray.length; i++)                 if (ko.utils.stringTrim(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         // allBindingsAccessor: All 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, allBindingsAccessor, key, value, checkIfDifferent) {             if (!property || !ko.isWriteableObservable(property)) {                 var propWriters = allBindingsAccessor()['_ko_property_writers'];                 if (propWriters && propWriters[key])                     propWriters[key](value);             } else if (!checkIfDifferent || property() !== value) {                 property(value);             }         }     }; })();  ko.exportSymbol('jsonExpressionRewriting', ko.jsonExpressionRewriting); ko.exportSymbol('jsonExpressionRewriting.bindingRewriteValidators', ko.jsonExpressionRewriting.bindingRewriteValidators); ko.exportSymbol('jsonExpressionRewriting.parseObjectLiteral', ko.jsonExpressionRewriting.parseObjectLiteral); ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.jsonExpressionRewriting.insertPropertyAccessorsIntoJson); (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., blah)     // 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.createComment("test").text === "";      var startCommentRegex = commentNodesHaveTextProperty ? /^$/ : /^\s*ko\s+(.*\:.*)\s*$/;     var endCommentRegex =   commentNodesHaveTextProperty ? /^$/ : /^\s*\/ko\s*$/;     var htmlTagsWithOptionallyClosingChildren = { 'ul': true, 'ol': true };      function isStartComment(node) {         return (node.nodeType == 8) && (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);     }      function isEndComment(node) {         return (node.nodeType == 8) && (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(endCommentRegex);     }      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><span>Another</span>, returns: <span>Another</span>         //       from <div>OK</div>,             returns:          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 (!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;         },          virtualNodeBindingValue: function(node) {             var regexMatch = isStartComment(node);             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: return node.getAttribute(defaultBindingAttributeName) != null;   // Element                 case 8: return ko.virtualElements.virtualNodeBindingValue(node) != null; // Comment node                 default: return false;             }         },          'getBindings': function(node, bindingContext) {             var bindingsString = this['getBindingsString'](node, bindingContext);             return bindingsString ? this['parseBindingsString'](bindingsString, bindingContext) : 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.         '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) {             try {                 var viewModel = bindingContext['$data'],                     scopes = (typeof viewModel == 'object' && viewModel != null) ? [viewModel, bindingContext] : [bindingContext],                     bindingFunction = createBindingsStringEvaluatorViaCache(bindingsString, scopes.length, this.bindingCache);                 return bindingFunction(scopes);             } catch (ex) {                 throw new Error("Unable to parse bindings.\nMessage: " + ex + ";\nBindings value: " + bindingsString);             }         }     });      ko.bindingProvider['instance'] = new ko.bindingProvider();      function createBindingsStringEvaluatorViaCache(bindingsString, scopesCount, cache) {         var cacheKey = scopesCount + '_' + bindingsString;         return cache[cacheKey]             || (cache[cacheKey] = createBindingsStringEvaluator(bindingsString, scopesCount));     }      function createBindingsStringEvaluator(bindingsString, scopesCount) {         var rewrittenBindings = " { " + ko.jsonExpressionRewriting.insertPropertyAccessorsIntoJson(bindingsString) + " } ";         return ko.utils.buildEvalWithinScopeFunction(rewrittenBindings, scopesCount);     } })();  ko.exportSymbol('bindingProvider', ko.bindingProvider); (function () {     ko.bindingHandlers = {};      ko.bindingContext = function(dataItem, parentBindingContext) {         if (parentBindingContext) {             ko.utils.extend(this, parentBindingContext); // Inherit $root and any custom properties             this['$parentContext'] = parentBindingContext;             this['$parent'] = parentBindingContext['$data'];             this['$parents'] = (parentBindingContext['$parents'] || []).slice(0);             this['$parents'].unshift(this['$parent']);         } else {             this['$parents'] = [];             this['$root'] = dataItem;         }         this['$data'] = dataItem;     }     ko.bindingContext.prototype['createChildContext'] = function (dataItem) {         return new ko.bindingContext(dataItem, this);     };     ko.bindingContext.prototype['extend'] = function(properties) {         var clone = ko.utils.extend(new ko.bindingContext(), this);         return ko.utils.extend(clone, properties);     };      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 (viewModel, elementOrVirtualElement, bindingContextsMayDifferFromDomParentElement) {         var currentChild, 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(viewModel, currentChild, bindingContextsMayDifferFromDomParentElement);         }     }      function applyBindingsToNodeAndDescendantsInternal (viewModel, 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, viewModel, bindingContextMayDifferFromDomParentElement).shouldBindDescendants;          if (shouldBindDescendants) {             // 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(viewModel, nodeVerified, /* bindingContextsMayDifferFromDomParentElement: */ !isElement);         }     }      function applyBindingsToNodeInternal (node, bindings, viewModelOrBindingContext, bindingContextMayDifferFromDomParentElement) {         // Need to be sure that inits are only run once, and updates never run until all the inits have been run         var initPhase = 0; // 0 = before all inits, 1 = during inits, 2 = after all inits          // Each time the dependentObservable is evaluated (after data changes),         // the binding attribute is reparsed so that it can pick out the correct         // model properties in the context of the changed data.         // DOM event callbacks need to be able to access this changed data,         // so we need a single parsedBindings variable (shared by all callbacks         // associated with this node's bindings) that all the closures can access.         var parsedBindings;         function makeValueAccessor(bindingKey) {             return function () { return parsedBindings[bindingKey] }         }         function parsedBindingsAccessor() {             return parsedBindings;         }          var bindingHandlerThatControlsDescendantBindings;         ko.dependentObservable(             function () {                 // Ensure we have a nonnull binding context to work with                 var bindingContextInstance = viewModelOrBindingContext && (viewModelOrBindingContext instanceof ko.bindingContext)                     ? viewModelOrBindingContext                     : new ko.bindingContext(ko.utils.unwrapObservable(viewModelOrBindingContext));                 var viewModel = bindingContextInstance['$data'];                  // 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 (bindingContextMayDifferFromDomParentElement)                     ko.storedBindingContextForNode(node, bindingContextInstance);                  // Use evaluatedBindings if given, otherwise fall back on asking the bindings provider to give us some bindings                 var evaluatedBindings = (typeof bindings == "function") ? bindings() : bindings;                 parsedBindings = evaluatedBindings || ko.bindingProvider['instance']['getBindings'](node, bindingContextInstance);                  if (parsedBindings) {                     // First run all the inits, so bindings can register for notification on changes                     if (initPhase === 0) {                         initPhase = 1;                         for (var bindingKey in parsedBindings) {                             var binding = ko.bindingHandlers[bindingKey];                             if (binding && node.nodeType === 8)                                 validateThatBindingIsAllowedForVirtualElements(bindingKey);                              if (binding && typeof binding["init"] == "function") {                                 var handlerInitFn = binding["init"];                                 var initResult = handlerInitFn(node, makeValueAccessor(bindingKey), parsedBindingsAccessor, viewModel, bindingContextInstance);                                  // 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;                                 }                             }                         }                         initPhase = 2;                     }                      // ... then run all the updates, which might trigger changes even on the first evaluation                     if (initPhase === 2) {                         for (var bindingKey in parsedBindings) {                             var binding = ko.bindingHandlers[bindingKey];                             if (binding && typeof binding["update"] == "function") {                                 var handlerUpdateFn = binding["update"];                                 handlerUpdateFn(node, makeValueAccessor(bindingKey), parsedBindingsAccessor, viewModel, bindingContextInstance);                             }                         }                     }                 }             },             null,             { 'disposeWhenNodeIsRemoved' : node }         );          return {             shouldBindDescendants: bindingHandlerThatControlsDescendantBindings === undefined         };     };      var storedBindingContextDomDataKey = "__ko_bindingContext__";     ko.storedBindingContextForNode = function (node, bindingContext) {         if (arguments.length == 2)             ko.utils.domData.set(node, storedBindingContextDomDataKey, bindingContext);         else             return ko.utils.domData.get(node, storedBindingContextDomDataKey);     }      ko.applyBindingsToNode = function (node, bindings, viewModel) {         if (node.nodeType === 1) // If it's an element, workaround IE <= 8 HTML parsing weirdness             ko.virtualElements.normaliseVirtualElementDomStructure(node);         return applyBindingsToNodeInternal(node, bindings, viewModel, true);     };      ko.applyBindingsToDescendants = function(viewModel, rootNode) {         if (rootNode.nodeType === 1 || rootNode.nodeType === 8)             applyBindingsToDescendantsInternal(viewModel, rootNode, true);     };      ko.applyBindings = function (viewModel, rootNode) {         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(viewModel, 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('applyBindingsToNode', ko.applyBindingsToNode);     ko.exportSymbol('contextFor', ko.contextFor);     ko.exportSymbol('dataFor', ko.dataFor); })(); // 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} var eventHandlersWithShortcuts = ['click']; ko.utils.arrayForEach(eventHandlersWithShortcuts, function(eventName) {     ko.bindingHandlers[eventName] = {         'init': function(element, valueAccessor, allBindingsAccessor, viewModel) {             var newValueAccessor = function () {                 var result = {};                 result[eventName] = valueAccessor();                 return result;             };             return ko.bindingHandlers['event']['init'].call(this, element, newValueAccessor, allBindingsAccessor, viewModel);         }     } });   ko.bindingHandlers['event'] = {     'init' : function (element, valueAccessor, allBindingsAccessor, viewModel) {         var eventsToHandle = valueAccessor() || {};         for(var eventNameOutsideClosure in eventsToHandle) {             (function() {                 var eventName = eventNameOutsideClosure; // Separate variable to be captured by event handler closure                 if (typeof eventName == "string") {                     ko.utils.registerEventHandler(element, eventName, function (event) {                         var handlerReturnValue;                         var handlerFunction = valueAccessor()[eventName];                         if (!handlerFunction)                             return;                         var allBindings = allBindingsAccessor();                          try {                             // Take all the event args, and prefix with the viewmodel                             var argsForHandler = ko.utils.makeArray(arguments);                             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[eventName + 'Bubble'] !== false;                         if (!bubble) {                             event.cancelBubble = true;                             if (event.stopPropagation)                                 event.stopPropagation();                         }                     });                 }             })();         }     } };  ko.bindingHandlers['submit'] = {     'init': function (element, valueAccessor, allBindingsAccessor, viewModel) {         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(viewModel, 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['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";     } }  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()) });     } };  function ensureDropdownSelectionIsConsistentWithModelValue(element, modelValue, preferModelValue) {     if (preferModelValue) {         if (modelValue !== ko.selectExtensions.readValue(element))             ko.selectExtensions.writeValue(element, modelValue);     }      // No matter which direction we're syncing in, we want the end result to be equality between dropdown value and model value.     // If they aren't equal, either we prefer the dropdown value, or the model value couldn't be represented, so either way,     // change the model value to match the dropdown.     if (modelValue !== ko.selectExtensions.readValue(element))         ko.utils.triggerEvent(element, "change"); };  ko.bindingHandlers['value'] = {     'init': function (element, valueAccessor, allBindingsAccessor) {         // Always catch "change" event; possibly other events too if asked         var eventsToCatch = ["change"];         var requestedEventsToCatch = allBindingsAccessor()["valueUpdate"];         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() {             var modelValue = valueAccessor();             var elementValue = ko.selectExtensions.readValue(element);             ko.jsonExpressionRewriting.writeValueToProperty(modelValue, allBindingsAccessor, 'value', elementValue, /* checkIfDifferent: */ true);         }          // 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) {             var propertyChangedFired = false;             ko.utils.registerEventHandler(element, "propertychange", function () { propertyChangedFired = true });             ko.utils.registerEventHandler(element, "blur", function() {                 if (propertyChangedFired) {                     propertyChangedFired = false;                     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() { setTimeout(valueUpdateHandler, 0) };                 eventName = eventName.substring("after".length);             }             ko.utils.registerEventHandler(element, eventName, handler);         });     },     'update': function (element, valueAccessor) {         var valueIsSelectOption = ko.utils.tagNameLower(element) === "select";         var newValue = ko.utils.unwrapObservable(valueAccessor());         var elementValue = ko.selectExtensions.readValue(element);         var valueHasChanged = (newValue != elementValue);          // JavaScript's 0 == "" behavious is unfortunate here as it prevents writing 0 to an empty text box (loose equality suggests the values are the same).         // We don't want to do a strict equality comparison as that is more confusing for developers in certain cases, so we specifically special case 0 != "" here.         if ((newValue === 0) && (elementValue !== 0) && (elementValue !== "0"))             valueHasChanged = true;          if (valueHasChanged) {             var applyValueAction = function () { ko.selectExtensions.writeValue(element, newValue); };             applyValueAction();              // 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.             var alsoApplyAsynchronously = valueIsSelectOption;             if (alsoApplyAsynchronously)                 setTimeout(applyValueAction, 0);         }          // 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.         if (valueIsSelectOption && (element.length > 0))             ensureDropdownSelectionIsConsistentWithModelValue(element, newValue, /* preferModelValue */ false);     } };  ko.bindingHandlers['options'] = {     'update': function (element, valueAccessor, allBindingsAccessor) {         if (ko.utils.tagNameLower(element) !== "select")             throw new Error("options binding applies only to SELECT elements");          var selectWasPreviouslyEmpty = element.length == 0;         var previousSelectedValues = ko.utils.arrayMap(ko.utils.arrayFilter(element.childNodes, function (node) {             return node.tagName && (ko.utils.tagNameLower(node) === "option") && node.selected;         }), function (node) {             return ko.selectExtensions.readValue(node) || node.innerText || node.textContent;         });         var previousScrollTop = element.scrollTop;          var value = ko.utils.unwrapObservable(valueAccessor());         var selectedValue = element.value;          // Remove all existing <option>s.         // Need to use .remove() rather than .removeChild() for <option>s otherwise IE behaves oddly (https://github.com/SteveSanderson/knockout/issues/134)         while (element.length > 0) {             ko.cleanNode(element.options[0]);             element.remove(0);         }          if (value) {             var allBindings = allBindingsAccessor();             if (typeof value.length != "number")                 value = [value];             if (allBindings['optionsCaption']) {                 var option = document.createElement("option");                 ko.utils.setHtml(option, allBindings['optionsCaption']);                 ko.selectExtensions.writeValue(option, undefined);                 element.appendChild(option);             }             for (var i = 0, j = value.length; i < j; i++) {                 var option = document.createElement("option");                  // Apply a value to the option element                 var optionValue = typeof allBindings['optionsValue'] == "string" ? value[i][allBindings['optionsValue']] : value[i];                 optionValue = ko.utils.unwrapObservable(optionValue);                 ko.selectExtensions.writeValue(option, optionValue);                  // Apply some text to the option element                 var optionsTextValue = allBindings['optionsText'];                 var optionText;                 if (typeof optionsTextValue == "function")                     optionText = optionsTextValue(value[i]); // Given a function; run it against the data value                 else if (typeof optionsTextValue == "string")                     optionText = value[i][optionsTextValue]; // Given a string; treat it as a property name on the data value                 else                     optionText = optionValue;				 // Given no optionsText arg; use the data value itself                 if ((optionText === null) || (optionText === undefined))                     optionText = "";                  ko.utils.setTextContent(option, optionText);                  element.appendChild(option);             }              // 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.             var newOptions = element.getElementsByTagName("option");             var countSelectionsRetained = 0;             for (var i = 0, j = newOptions.length; i < j; i++) {                 if (ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[i])) >= 0) {                     ko.utils.setOptionNodeSelectionState(newOptions[i], true);                     countSelectionsRetained++;                 }             }              element.scrollTop = previousScrollTop;              if (selectWasPreviouslyEmpty && ('value' in allBindings)) {                 // Ensure consistency between model value and selected option.                 // If the dropdown is being populated for the first time here (or was otherwise previously empty),                 // the dropdown selection state is meaningless, so we preserve the model value.                 ensureDropdownSelectionIsConsistentWithModelValue(element, ko.utils.unwrapObservable(allBindings['value']), /* preferModelValue */ true);             }              // Workaround for IE9 bug             ko.utils.ensureSelectElementIsRenderedCorrectly(element);         }     } }; ko.bindingHandlers['options'].optionValueDomDataKey = '__ko.optionValueDomData__';  ko.bindingHandlers['selectedOptions'] = {     getSelectedValuesFromSelectNode: function (selectNode) {         var result = [];         var nodes = selectNode.childNodes;         for (var i = 0, j = nodes.length; i < j; i++) {             var node = nodes[i], tagName = ko.utils.tagNameLower(node);             if (tagName == "option" && node.selected)                 result.push(ko.selectExtensions.readValue(node));             else if (tagName == "optgroup") {                 var selectedValuesFromOptGroup = ko.bindingHandlers['selectedOptions'].getSelectedValuesFromSelectNode(node);                 Array.prototype.splice.apply(result, [result.length, 0].concat(selectedValuesFromOptGroup)); // Add new entries to existing 'result' instance             }         }         return result;     },     'init': function (element, valueAccessor, allBindingsAccessor) {         ko.utils.registerEventHandler(element, "change", function () {             var value = valueAccessor();             var valueToWrite = ko.bindingHandlers['selectedOptions'].getSelectedValuesFromSelectNode(this);             ko.jsonExpressionRewriting.writeValueToProperty(value, allBindingsAccessor, 'value', 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") {             var nodes = element.childNodes;             for (var i = 0, j = nodes.length; i < j; i++) {                 var node = nodes[i];                 if (ko.utils.tagNameLower(node) === "option")                     ko.utils.setOptionNodeSelectionState(node, ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0);             }         }     } };  ko.bindingHandlers['text'] = {     'update': function (element, valueAccessor) {         ko.utils.setTextContent(element, valueAccessor());     } };  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) {         var value = ko.utils.unwrapObservable(valueAccessor());         ko.utils.setHtml(element, value);     } };  ko.bindingHandlers['css'] = {     'update': function (element, valueAccessor) {         var value = ko.utils.unwrapObservable(valueAccessor() || {});         for (var className in value) {             if (typeof className == "string") {                 var shouldHaveClass = ko.utils.unwrapObservable(value[className]);                 ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);             }         }     } };  ko.bindingHandlers['style'] = {     'update': function (element, valueAccessor) {         var value = ko.utils.unwrapObservable(valueAccessor() || {});         for (var styleName in value) {             if (typeof styleName == "string") {                 var styleValue = ko.utils.unwrapObservable(value[styleName]);                 element.style[styleName] = styleValue || ""; // Empty string removes the value, whereas null/undefined have no effect             }         }     } };  ko.bindingHandlers['uniqueName'] = {     'init': function (element, valueAccessor) {         if (valueAccessor()) {             element.name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);              // 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 (ko.utils.isIe6 || ko.utils.isIe7)                 element.mergeAttributes(document.createElement("<input name='" + element.name + "'/>"), false);         }     } }; ko.bindingHandlers['uniqueName'].currentIndex = 0;  ko.bindingHandlers['checked'] = {     'init': function (element, valueAccessor, allBindingsAccessor) {         var updateHandler = function() {             var valueToWrite;             if (element.type == "checkbox") {                 valueToWrite = element.checked;             } else if ((element.type == "radio") && (element.checked)) {                 valueToWrite = element.value;             } else {                 return; // "checked" binding only responds to checkboxes and selected radio buttons             }              var modelValue = valueAccessor();             if ((element.type == "checkbox") && (ko.utils.unwrapObservable(modelValue) instanceof Array)) {                 // For checkboxes bound to an array, we add/remove the checkbox value to that array                 // This works for both observable and non-observable arrays                 var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.unwrapObservable(modelValue), element.value);                 if (element.checked && (existingEntryIndex < 0))                     modelValue.push(element.value);                 else if ((!element.checked) && (existingEntryIndex >= 0))                     modelValue.splice(existingEntryIndex, 1);             } else {                 ko.jsonExpressionRewriting.writeValueToProperty(modelValue, allBindingsAccessor, 'checked', valueToWrite, true);             }         };         ko.utils.registerEventHandler(element, "click", updateHandler);          // IE 6 won't allow radio buttons to be selected unless they have a name         if ((element.type == "radio") && !element.name)             ko.bindingHandlers['uniqueName']['init'](element, function() { return true });     },     'update': function (element, valueAccessor) {         var value = ko.utils.unwrapObservable(valueAccessor());          if (element.type == "checkbox") {             if (value instanceof Array) {                 // When bound to an array, the checkbox being checked represents its value being present in that array                 element.checked = ko.utils.arrayIndexOf(value, element.value) >= 0;             } else {                 // When bound to anything other value (not an array), the checkbox being checked represents the value being trueish                 element.checked = value;             }         } else if (element.type == "radio") {             element.checked = (element.value == value);         }     } };  var attrHtmlToJavascriptMap = { 'class': 'className', 'for': 'htmlFor' }; ko.bindingHandlers['attr'] = {     'update': function(element, valueAccessor, allBindingsAccessor) {         var value = ko.utils.unwrapObservable(valueAccessor()) || {};         for (var attrName in value) {             if (typeof attrName == "string") {                 var attrValue = ko.utils.unwrapObservable(value[attrName]);                  // 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());                 }             }         }     } };  ko.bindingHandlers['hasfocus'] = {     'init': function(element, valueAccessor, allBindingsAccessor) {         var writeValue = function(valueToWrite) {             var modelValue = valueAccessor();             ko.jsonExpressionRewriting.writeValueToProperty(modelValue, allBindingsAccessor, 'hasfocus', valueToWrite, true);         };         ko.utils.registerEventHandler(element, "focus", function() { writeValue(true) });         ko.utils.registerEventHandler(element, "focusin", function() { writeValue(true) }); // For IE         ko.utils.registerEventHandler(element, "blur",  function() { writeValue(false) });         ko.utils.registerEventHandler(element, "focusout",  function() { writeValue(false) }); // For IE     },     'update': function(element, valueAccessor) {         var value = ko.utils.unwrapObservable(valueAccessor());         value ? element.focus() : element.blur();         ko.utils.triggerEvent(element, value ? "focusin" : "focusout"); // For IE, which doesn't reliably fire "focus" or "blur" events synchronously     } };  // "with: someExpression" is equivalent to "template: { if: someExpression, data: someExpression }" ko.bindingHandlers['with'] = {     makeTemplateValueAccessor: function(valueAccessor) {         return function() { var value = valueAccessor(); return { 'if': value, 'data': value, 'templateEngine': ko.nativeTemplateEngine.instance } };     },     'init': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['with'].makeTemplateValueAccessor(valueAccessor));     },     'update': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['with'].makeTemplateValueAccessor(valueAccessor), allBindingsAccessor, viewModel, bindingContext);     } }; ko.jsonExpressionRewriting.bindingRewriteValidators['with'] = false; // Can't rewrite control flow bindings ko.virtualElements.allowedBindings['with'] = true;  // "if: someExpression" is equivalent to "template: { if: someExpression }" ko.bindingHandlers['if'] = {     makeTemplateValueAccessor: function(valueAccessor) {         return function() { return { 'if': valueAccessor(), 'templateEngine': ko.nativeTemplateEngine.instance } };     },     'init': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['if'].makeTemplateValueAccessor(valueAccessor));     },     'update': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['if'].makeTemplateValueAccessor(valueAccessor), allBindingsAccessor, viewModel, bindingContext);     } }; ko.jsonExpressionRewriting.bindingRewriteValidators['if'] = false; // Can't rewrite control flow bindings ko.virtualElements.allowedBindings['if'] = true;  // "ifnot: someExpression" is equivalent to "template: { ifnot: someExpression }" ko.bindingHandlers['ifnot'] = {     makeTemplateValueAccessor: function(valueAccessor) {         return function() { return { 'ifnot': valueAccessor(), 'templateEngine': ko.nativeTemplateEngine.instance } };     },     'init': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['ifnot'].makeTemplateValueAccessor(valueAccessor));     },     'update': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['ifnot'].makeTemplateValueAccessor(valueAccessor), allBindingsAccessor, viewModel, bindingContext);     } }; ko.jsonExpressionRewriting.bindingRewriteValidators['ifnot'] = false; // Can't rewrite control flow bindings ko.virtualElements.allowedBindings['ifnot'] = true;  // "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 bindingValue = ko.utils.unwrapObservable(valueAccessor());              // If bindingValue is the array, just pass it on its own             if ((!bindingValue) || typeof bindingValue.length == "number")                 return { 'foreach': bindingValue, 'templateEngine': ko.nativeTemplateEngine.instance };              // If bindingValue.data is the array, preserve all relevant options             return {                 'foreach': bindingValue['data'],                 'includeDestroyed': bindingValue['includeDestroyed'],                 'afterAdd': bindingValue['afterAdd'],                 'beforeRemove': bindingValue['beforeRemove'],                 'afterRender': bindingValue['afterRender'],                 'templateEngine': ko.nativeTemplateEngine.instance             };         };     },     'init': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor));     },     'update': function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {         return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindingsAccessor, viewModel, bindingContext);     } }; ko.jsonExpressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings ko.virtualElements.allowedBindings['foreach'] = true; // 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;      // Perf optimisation - see below     var templateIsInExternalDocument = templateDocument && templateDocument != document;     if (!templateIsInExternalDocument && this.knownRewrittenTemplates && this.knownRewrittenTemplates[template])         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);      // Perf optimisation - for named templates, track which ones have been rewritten so we can     // answer 'isTemplateRewritten' *without* having to use getElementById (which is slow on IE < 8)     //     // Note that we only cache the status for templates in the main document, because caching on a per-doc     // basis complicates the implementation excessively. In a future version of KO, we will likely remove     // this 'isRewritten' cache entirely anyway, because the benefit is extremely minor and only applies     // to rewritable templates, which are pretty much deprecated since KO 2.0.     var templateIsInExternalDocument = templateDocument && templateDocument != document;     if (!templateIsInExternalDocument && typeof template == "string") {         this.knownRewrittenTemplates = this.knownRewrittenTemplates || {};         this.knownRewrittenTemplates[template] = true;     } };  ko.exportSymbol('templateEngine', ko.templateEngine);  ko.templateRewriting = (function () {     var memoizeDataBindingAttributeSyntaxRegex = /(<[a-z]+\d*(\s+(?!data-bind=)[a-z0-9\-]+(=(\"[^\"]*\"|\'[^\']*\'))?)*\s+)data-bind=(["'])([\s\S]*?)\5/gi;     var memoizeVirtualContainerBindingSyntaxRegex = //g;      function validateDataBindValuesForRewriting(keyValueArray) {         var allValidators = ko.jsonExpressionRewriting.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, templateEngine) {         var dataBindKeyValueArray = ko.jsonExpressionRewriting.parseObjectLiteral(dataBindAttributeValue);         validateDataBindValuesForRewriting(dataBindKeyValueArray);         var rewrittenDataBindAttributeValue = ko.jsonExpressionRewriting.insertPropertyAccessorsIntoJson(dataBindKeyValueArray);          // 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.templateRewriting.applyMemoizedBindingsToNextSibling(function() { \             return (function() { return { " + rewrittenDataBindAttributeValue + " } })() \         })";         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[6], /* tagToRetain: */ arguments[1], templateEngine);             }).replace(memoizeVirtualContainerBindingSyntaxRegex, function() {                 return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ "", templateEngine);             });         },          applyMemoizedBindingsToNextSibling: function (bindings) {             return ko.memoization.memoize(function (domNode, bindingContext) {                 if (domNode.nextSibling)                     ko.applyBindingsToNode(domNode.nextSibling, bindings, bindingContext);             });         }     } })();  ko.exportSymbol('templateRewriting', ko.templateRewriting); ko.exportSymbol('templateRewriting.applyMemoizedBindingsToNextSibling', ko.templateRewriting.applyMemoizedBindingsToNextSibling); // Exported only because it has to be referenced by string lookup from within rewritten template (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;         }     };      ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {         if (arguments.length === 1) {             return ko.utils.domData.get(this.domElement, "templateSourceData_" + key);         } else {             ko.utils.domData.set(this.domElement, "templateSourceData_" + 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_anon_template__";     ko.templateSources.anonymousTemplate = function(element) {         this.domElement = element;     }     ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();     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 invokeForEachNodeOrCommentInContinuousRange(firstNode, lastNode, action) {         var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);         while (nextInQueue && ((node = nextInQueue) !== firstOutOfRangeNode)) {             nextInQueue = ko.virtualElements.nextSibling(node);             if (node.nodeType === 1 || node.nodeType === 8)                 action(node);         }     }      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];              // 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             invokeForEachNodeOrCommentInContinuousRange(firstNode, lastNode, function(node) {                 ko.applyBindings(bindingContext, node);             });             invokeForEachNodeOrCommentInContinuousRange(firstNode, lastNode, function(node) {                 ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);             });         }     }      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'])                 options['afterRender'](renderedNodesArray, bindingContext['$data']);         }          return renderedNodesArray;     }      ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {         options = options || {};         if ((options['templateEngine'] || _templateEngine) == undefined)             throw new Error("Set a template engine before calling renderTemplate");         renderMode = renderMode || "replaceChildren";          if (targetNodeOrNodeArray) {             var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);              var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation)             var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;              return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes                 function () {                     // Ensure we've got a proper binding context to work with                     var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))                         ? dataOrBindingContext                         : new ko.bindingContext(ko.utils.unwrapObservable(dataOrBindingContext));                      // Support selecting template as a function of the data being rendered                     var templateName = typeof(template) == 'function' ? template(bindingContext['$data']) : template;                      var 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             var templateName = typeof(template) == 'function' ? template(arrayValue) : template;             arrayItemContext = parentBindingContext['createChildContext'](ko.utils.unwrapObservable(arrayValue));             arrayItemContext['$index'] = index;             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']);             });              ko.utils.setDomNodeChildrenFromArrayMapping(targetNode, filteredArray, executeTemplateForArrayItem, options, activateBindingsCallback);          }, null, { 'disposeWhenNodeIsRemoved': targetNode });     };      var templateSubscriptionDomDataKey = '__ko__templateSubscriptionDomDataKey__';     function disposeOldSubscriptionAndStoreNewOne(element, newSubscription) {         var oldSubscription = ko.utils.domData.get(element, templateSubscriptionDomDataKey);         if (oldSubscription && (typeof(oldSubscription.dispose) == 'function'))             oldSubscription.dispose();         ko.utils.domData.set(element, templateSubscriptionDomDataKey, newSubscription);     }      ko.bindingHandlers['template'] = {         'init': function(element, valueAccessor) {             // Support anonymous templates             var bindingValue = ko.utils.unwrapObservable(valueAccessor());             if ((typeof bindingValue != "string") && (!bindingValue['name']) && (element.nodeType == 1 || element.nodeType == 8)) {                 // It's an anonymous template - store the element contents, then clear the element                 var templateNodes = element.nodeType == 1 ? element.childNodes : 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, allBindingsAccessor, viewModel, bindingContext) {             var bindingValue = ko.utils.unwrapObservable(valueAccessor());             var templateName;             var shouldDisplay = true;              if (typeof bindingValue == "string") {                 templateName = bindingValue;             } else {                 templateName = bindingValue['name'];                  // Support "if"/"ifnot" conditions                 if ('if' in bindingValue)                     shouldDisplay = shouldDisplay && ko.utils.unwrapObservable(bindingValue['if']);                 if ('ifnot' in bindingValue)                     shouldDisplay = shouldDisplay && !ko.utils.unwrapObservable(bindingValue['ifnot']);             }              var templateSubscription = null;              if ((typeof bindingValue === 'object') && ('foreach' in bindingValue)) { // Note: can't use 'in' operator on strings                 // Render once for each data point (treating data set as empty if shouldDisplay==false)                 var dataArray = (shouldDisplay && bindingValue['foreach']) || [];                 templateSubscription = ko.renderTemplateForEach(templateName || element, dataArray, /* options: */ bindingValue, element, bindingContext);             } else {                 if (shouldDisplay) {                     // Render once for this single data point (or use the viewModel if no data was provided)                     var innerBindingContext = (typeof bindingValue == 'object') && ('data' in bindingValue)                         ? bindingContext['createChildContext'](ko.utils.unwrapObservable(bindingValue['data'])) // 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                     templateSubscription = ko.renderTemplate(templateName || element, innerBindingContext, /* options: */ bindingValue, element);                 } else                     ko.virtualElements.emptyNode(element);             }              // It only makes sense to have a single template subscription per element (otherwise which one should have its output displayed?)             disposeOldSubscriptionAndStoreNewOne(element, templateSubscription);         }     };      // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.     ko.jsonExpressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) {         var parsedBindingValue = ko.jsonExpressionRewriting.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.jsonExpressionRewriting.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);  (function () {     // Simple calculation based on Levenshtein distance.     function calculateEditDistanceMatrix(oldArray, newArray, maxAllowedDistance) {         var distances = [];         for (var i = 0; i <= newArray.length; i++)             distances[i] = [];          // Top row - transform old array into empty array via deletions         for (var i = 0, j = Math.min(oldArray.length, maxAllowedDistance); i <= j; i++)             distances[0][i] = i;          // Left row - transform empty array into new array via additions         for (var i = 1, j = Math.min(newArray.length, maxAllowedDistance); i <= j; i++) {             distances[i][0] = i;         }          // Fill out the body of the array         var oldIndex, oldIndexMax = oldArray.length, newIndex, newIndexMax = newArray.length;         var distanceViaAddition, distanceViaDeletion;         for (oldIndex = 1; oldIndex <= oldIndexMax; oldIndex++) {             var newIndexMinForRow = Math.max(1, oldIndex - maxAllowedDistance);             var newIndexMaxForRow = Math.min(newIndexMax, oldIndex + maxAllowedDistance);             for (newIndex = newIndexMinForRow; newIndex <= newIndexMaxForRow; newIndex++) {                 if (oldArray[oldIndex - 1] === newArray[newIndex - 1])                     distances[newIndex][oldIndex] = distances[newIndex - 1][oldIndex - 1];                 else {                     var northDistance = distances[newIndex - 1][oldIndex] === undefined ? Number.MAX_VALUE : distances[newIndex - 1][oldIndex] + 1;                     var westDistance = distances[newIndex][oldIndex - 1] === undefined ? Number.MAX_VALUE : distances[newIndex][oldIndex - 1] + 1;                     distances[newIndex][oldIndex] = Math.min(northDistance, westDistance);                 }             }         }          return distances;     }      function findEditScriptFromEditDistanceMatrix(editDistanceMatrix, oldArray, newArray) {         var oldIndex = oldArray.length;         var newIndex = newArray.length;         var editScript = [];         var maxDistance = editDistanceMatrix[newIndex][oldIndex];         if (maxDistance === undefined)             return null; // maxAllowedDistance must be too small         while ((oldIndex > 0) || (newIndex > 0)) {             var me = editDistanceMatrix[newIndex][oldIndex];             var distanceViaAdd = (newIndex > 0) ? editDistanceMatrix[newIndex - 1][oldIndex] : maxDistance + 1;             var distanceViaDelete = (oldIndex > 0) ? editDistanceMatrix[newIndex][oldIndex - 1] : maxDistance + 1;             var distanceViaRetain = (newIndex > 0) && (oldIndex > 0) ? editDistanceMatrix[newIndex - 1][oldIndex - 1] : maxDistance + 1;             if ((distanceViaAdd === undefined) || (distanceViaAdd < me - 1)) distanceViaAdd = maxDistance + 1;             if ((distanceViaDelete === undefined) || (distanceViaDelete < me - 1)) distanceViaDelete = maxDistance + 1;             if (distanceViaRetain < me - 1) distanceViaRetain = maxDistance + 1;              if ((distanceViaAdd <= distanceViaDelete) && (distanceViaAdd < distanceViaRetain)) {                 editScript.push({ status: "added", value: newArray[newIndex - 1] });                 newIndex--;             } else if ((distanceViaDelete < distanceViaAdd) && (distanceViaDelete < distanceViaRetain)) {                 editScript.push({ status: "deleted", value: oldArray[oldIndex - 1] });                 oldIndex--;             } else {                 editScript.push({ status: "retained", value: oldArray[oldIndex - 1] });                 newIndex--;                 oldIndex--;             }         }         return editScript.reverse();     }      ko.utils.compareArrays = function (oldArray, newArray, maxEditsToConsider) {         if (maxEditsToConsider === undefined) {             return ko.utils.compareArrays(oldArray, newArray, 1)                 // First consider likely case where there is at most one edit (very fast)                 || ko.utils.compareArrays(oldArray, newArray, 10)                // If that fails, account for a fair number of changes while still being fast                 || ko.utils.compareArrays(oldArray, newArray, Number.MAX_VALUE); // Ultimately give the right answer, even though it may take a long time         } else {             oldArray = oldArray || [];             newArray = newArray || [];             var editDistanceMatrix = calculateEditDistanceMatrix(oldArray, newArray, maxEditsToConsider);             return findEditScriptFromEditDistanceMatrix(editDistanceMatrix, oldArray, newArray);         }     }; })();  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 fixUpVirtualElements(contiguousNodeArray) {         // Ensures that contiguousNodeArray really *is* an array of contiguous siblings, even if some of the interior         // ones have changed since your array was first built (e.g., because your array contains virtual elements, and         // their virtual children changed when binding was applied to them).         // This is needed so that we can reliably remove or update the nodes corresponding to a given array item          if (contiguousNodeArray.length > 2) {             // Build up the actual new contiguous node set             var current = contiguousNodeArray[0], last = contiguousNodeArray[contiguousNodeArray.length - 1], newContiguousSet = [current];             while (current !== last) {                 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;                 newContiguousSet.push(current);             }              // ... then mutate the input array to match this.             // (The following line replaces the contents of contiguousNodeArray with newContiguousSet)             Array.prototype.splice.apply(contiguousNodeArray, [0, contiguousNodeArray.length].concat(newContiguousSet));         }     }      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) || [];              // On subsequent evaluations, just replace the previously-inserted DOM nodes             if (mappedNodes.length > 0) {                 fixUpVirtualElements(mappedNodes);                 ko.utils.replaceDomNodes(mappedNodes, newMappedNodes);                 if (callbackAfterAddingNodes)                     callbackAfterAddingNodes(valueToMap, newMappedNodes);             }              // Replace the contents of the mappedNodes array, thereby updating the record             // of which nodes would be deleted if valueToMap was itself later removed             mappedNodes.splice(0, mappedNodes.length);             ko.utils.arrayPushAll(mappedNodes, newMappedNodes);         }, null, { 'disposeWhenNodeIsRemoved': containerNode, 'disposeWhen': function() { return (mappedNodes.length == 0) || !ko.utils.domNodeIsAttachedToDocument(mappedNodes[0]) } });         return { mappedNodes : mappedNodes, dependentObservable : dependentObservable };     }      var lastMappingResultDomDataKey = "setDomNodeChildrenFromArrayMapping_lastMappingResult";      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);          // Build the new mapping result         var newMappingResult = [];         var lastMappingResultIndex = 0;         var nodesToDelete = [];         var newMappingResultIndex = 0;         var nodesAdded = [];         var insertAfterNode = null;         for (var i = 0, j = editScript.length; i < j; i++) {             switch (editScript[i].status) {                 case "retained":                     // Just keep the information - don't touch the nodes                     var dataToRetain = lastMappingResult[lastMappingResultIndex];                     dataToRetain.indexObservable(newMappingResultIndex);                     newMappingResultIndex = newMappingResult.push(dataToRetain);                     if (dataToRetain.domNodes.length > 0)                         insertAfterNode = dataToRetain.domNodes[dataToRetain.domNodes.length - 1];                     lastMappingResultIndex++;                     break;                  case "deleted":                     // Stop tracking changes to the mapping for these nodes                     lastMappingResult[lastMappingResultIndex].dependentObservable.dispose();                      // Queue these nodes for later removal                     fixUpVirtualElements(lastMappingResult[lastMappingResultIndex].domNodes);                     ko.utils.arrayForEach(lastMappingResult[lastMappingResultIndex].domNodes, function (node) {                         nodesToDelete.push({                           element: node,                           index: i,                           value: editScript[i].value                         });                         insertAfterNode = node;                     });                     lastMappingResultIndex++;                     break;                  case "added":                     var valueToMap = editScript[i].value;                     var indexObservable = ko.observable(newMappingResultIndex);                     var mapData = mapNodeAndRefreshWhenChanged(domNode, mapping, valueToMap, callbackAfterAddingNodes, indexObservable);                     var mappedNodes = mapData.mappedNodes;                      // On the first evaluation, insert the nodes at the current insertion point                     newMappingResultIndex = newMappingResult.push({                         arrayEntry: editScript[i].value,                         domNodes: mappedNodes,                         dependentObservable: mapData.dependentObservable,                         indexObservable: indexObservable                     });                     for (var nodeIndex = 0, nodeIndexMax = mappedNodes.length; nodeIndex < nodeIndexMax; nodeIndex++) {                         var node = mappedNodes[nodeIndex];                         nodesAdded.push({                           element: node,                           index: i,                           value: editScript[i].value                         });                         if (insertAfterNode == null) {                             // Insert "node" (the newly-created node) as domNode's first child                             ko.virtualElements.prepend(domNode, node);                         } else {                             // Insert "node" into "domNode" immediately after "insertAfterNode"                             ko.virtualElements.insertAfter(domNode, node, insertAfterNode);                         }                         insertAfterNode = node;                     }                     if (callbackAfterAddingNodes)                         callbackAfterAddingNodes(valueToMap, mappedNodes, indexObservable);                     break;             }         }          ko.utils.arrayForEach(nodesToDelete, function (node) { ko.cleanNode(node.element) });          var invokedBeforeRemoveCallback = false;         if (!isFirstExecution) {             if (options['afterAdd']) {                 for (var i = 0; i < nodesAdded.length; i++)                     options['afterAdd'](nodesAdded[i].element, nodesAdded[i].index, nodesAdded[i].value);             }             if (options['beforeRemove']) {                 for (var i = 0; i < nodesToDelete.length; i++)                     options['beforeRemove'](nodesToDelete[i].element, nodesToDelete[i].index, nodesToDelete[i].value);                 invokedBeforeRemoveCallback = true;             }         }         if (!invokedBeforeRemoveCallback && nodesToDelete.length) {             for (var i = 0; i < nodesToDelete.length; i++) {                 var element = nodesToDelete[i].element;                 if (element.parentNode)                     element.parentNode.removeChild(element);             }         }          // 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['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 ((typeof(jQuery) == "undefined") || !(jQuery['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 (jQuery['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 jQuery['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 $item.koBindingContext}}" + templateText + "{{/ko_with}}";                  precompiled = jQuery['template'](null, templateText);                 templateSource['data']('precompiled', precompiled);             }              var data = [bindingContext['$data']]; // Prewrap the data in an array to stop jquery.tmpl from trying to unwrap any arrays             var jQueryTemplateOptions = jQuery['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              jQuery['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) {             jQuery['tmpl']['tag']['ko_code'] = {                 open: "__.push($1 || '');"             };             jQuery['tmpl']['tag']['ko_with'] = {                 open: "with($1) {",                 close: "} "             };         }     };      ko.jqueryTmplTemplateEngine.prototype = new ko.templateEngine();      // 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); })(); }); })(window,document,navigator);

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	0/0	0777	2024-07-30 06:16:49
..	dir	-	0/0	0777	2024-07-30 06:16:49
_references.js	text/html	838 B	0/0	0666	2024-10-28 02:40:09
jquery-1.7.1.js	text/html	242.94 KB	0/0	0666	2024-10-28 02:40:09
jquery-1.7.1.min.js	text/html	92.21 KB	0/0	0666	2024-10-28 02:40:09
jquery-ui-1.8.20.js	text/html	362.11 KB	0/0	0666	2024-10-28 02:40:09
jquery-ui-1.8.20.min.js	text/html	198.21 KB	0/0	0666	2024-10-28 02:40:09
jquery.unobtrusive-ajax.js	text/html	6.02 KB	0/0	0666	2024-10-28 02:40:09
jquery.unobtrusive-ajax.min.js	text/html	3.23 KB	0/0	0666	2024-10-28 02:40:09
jquery.validate.js	text/html	37.85 KB	0/0	0666	2024-10-28 02:40:09
jquery.validate.min.js	text/html	21.57 KB	0/0	0666	2024-10-28 02:40:09
jquery.validate.unobtrusive.js	text/html	16.28 KB	0/0	0666	2024-10-28 02:40:09
jquery.validate.unobtrusive.min.js	text/html	5.16 KB	0/0	0666	2024-10-28 02:40:09
knockout-2.1.0.debug.js	text/html	167.09 KB	0/0	0666	2024-10-28 02:40:09
knockout-2.1.0.js	text/html	40.9 KB	0/0	0666	2024-10-28 02:40:09
modernizr-2.5.3.js	text/html	47.54 KB	0/0	0666	2024-10-28 02:40:09

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