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							- /*!
 
-  * Knockout JavaScript library v3.3.0
 
-  * (c) Steven Sanderson - http://knockoutjs.com/
 
-  * License: MIT (http://www.opensource.org/licenses/mit-license.php)
 
-  */
 
- (function(){
 
- var DEBUG=true;
 
- (function(undefined){
 
-     // (0, eval)('this') is a robust way of getting a reference to the global object
 
-     // For details, see http://stackoverflow.com/questions/14119988/return-this-0-evalthis/14120023#14120023
 
-     var window = this || (0, eval)('this'),
 
-         document = window['document'],
 
-         navigator = window['navigator'],
 
-         jQueryInstance = window["jQuery"],
 
-         JSON = window["JSON"];
 
- (function(factory) {
 
-     // Support three module loading scenarios
 
-     if (typeof define === 'function' && define['amd']) {
 
-         // [1] AMD anonymous module
 
-         define(['exports', 'require'], factory);
 
-     } else if (typeof require === 'function' && typeof exports === 'object' && typeof module === 'object') {
 
-         // [2] CommonJS/Node.js
 
-         factory(module['exports'] || exports);  // module.exports is for Node.js
 
-     } else {
 
-         // [3] No module loader (plain <script> tag) - put directly in global namespace
 
-         factory(window['ko'] = {});
 
-     }
 
- }(function(koExports, amdRequire){
 
- // Internally, all KO objects are attached to koExports (even the non-exported ones whose names will be minified by the closure compiler).
 
- // In the future, the following "ko" variable may be made distinct from "koExports" so that private objects are not externally reachable.
 
- var ko = typeof koExports !== 'undefined' ? koExports : {};
 
- // Google Closure Compiler helpers (used only to make the minified file smaller)
 
- ko.exportSymbol = function(koPath, object) {
 
-     var tokens = koPath.split(".");
 
-     // In the future, "ko" may become distinct from "koExports" (so that non-exported objects are not reachable)
 
-     // At that point, "target" would be set to: (typeof koExports !== "undefined" ? koExports : ko)
 
-     var target = ko;
 
-     for (var i = 0; i < tokens.length - 1; i++)
 
-         target = target[tokens[i]];
 
-     target[tokens[tokens.length - 1]] = object;
 
- };
 
- ko.exportProperty = function(owner, publicName, object) {
 
-     owner[publicName] = object;
 
- };
 
- ko.version = "3.3.0";
 
- ko.exportSymbol('version', ko.version);
 
- ko.utils = (function () {
 
-     function objectForEach(obj, action) {
 
-         for (var prop in obj) {
 
-             if (obj.hasOwnProperty(prop)) {
 
-                 action(prop, obj[prop]);
 
-             }
 
-         }
 
-     }
 
-     function extend(target, source) {
 
-         if (source) {
 
-             for(var prop in source) {
 
-                 if(source.hasOwnProperty(prop)) {
 
-                     target[prop] = source[prop];
 
-                 }
 
-             }
 
-         }
 
-         return target;
 
-     }
 
-     function setPrototypeOf(obj, proto) {
 
-         obj.__proto__ = proto;
 
-         return obj;
 
-     }
 
-     var canSetPrototype = ({ __proto__: [] } instanceof Array);
 
-     // Represent the known event types in a compact way, then at runtime transform it into a hash with event name as key (for fast lookup)
 
-     var knownEvents = {}, knownEventTypesByEventName = {};
 
-     var keyEventTypeName = (navigator && /Firefox\/2/i.test(navigator.userAgent)) ? 'KeyboardEvent' : 'UIEvents';
 
-     knownEvents[keyEventTypeName] = ['keyup', 'keydown', 'keypress'];
 
-     knownEvents['MouseEvents'] = ['click', 'dblclick', 'mousedown', 'mouseup', 'mousemove', 'mouseover', 'mouseout', 'mouseenter', 'mouseleave'];
 
-     objectForEach(knownEvents, function(eventType, knownEventsForType) {
 
-         if (knownEventsForType.length) {
 
-             for (var i = 0, j = knownEventsForType.length; i < j; i++)
 
-                 knownEventTypesByEventName[knownEventsForType[i]] = eventType;
 
-         }
 
-     });
 
-     var eventsThatMustBeRegisteredUsingAttachEvent = { 'propertychange': true }; // Workaround for an IE9 issue - https://github.com/SteveSanderson/knockout/issues/406
 
-     // Detect IE versions for bug workarounds (uses IE conditionals, not UA string, for robustness)
 
-     // Note that, since IE 10 does not support conditional comments, the following logic only detects IE < 10.
 
-     // Currently this is by design, since IE 10+ behaves correctly when treated as a standard browser.
 
-     // If there is a future need to detect specific versions of IE10+, we will amend this.
 
-     var ieVersion = document && (function() {
 
-         var version = 3, div = document.createElement('div'), iElems = div.getElementsByTagName('i');
 
-         // Keep constructing conditional HTML blocks until we hit one that resolves to an empty fragment
 
-         while (
 
-             div.innerHTML = '<!--[if gt IE ' + (++version) + ']><i></i><![endif]-->',
 
-             iElems[0]
 
-         ) {}
 
-         return version > 4 ? version : undefined;
 
-     }());
 
-     var isIe6 = ieVersion === 6,
 
-         isIe7 = ieVersion === 7;
 
-     function isClickOnCheckableElement(element, eventType) {
 
-         if ((ko.utils.tagNameLower(element) !== "input") || !element.type) return false;
 
-         if (eventType.toLowerCase() != "click") return false;
 
-         var inputType = element.type;
 
-         return (inputType == "checkbox") || (inputType == "radio");
 
-     }
 
-     // For details on the pattern for changing node classes
 
-     // see: https://github.com/knockout/knockout/issues/1597
 
-     var cssClassNameRegex = /\S+/g;
 
-     function toggleDomNodeCssClass(node, classNames, shouldHaveClass) {
 
-         var addOrRemoveFn;
 
-         if (classNames) {
 
-             if (typeof node.classList === 'object') {
 
-                 addOrRemoveFn = node.classList[shouldHaveClass ? 'add' : 'remove'];
 
-                 ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {
 
-                     addOrRemoveFn.call(node.classList, className);
 
-                 });
 
-             } else if (typeof node.className['baseVal'] === 'string') {
 
-                 // SVG tag .classNames is an SVGAnimatedString instance
 
-                 toggleObjectClassPropertyString(node.className, 'baseVal', classNames, shouldHaveClass);
 
-             } else {
 
-                 // node.className ought to be a string.
 
-                 toggleObjectClassPropertyString(node, 'className', classNames, shouldHaveClass);
 
-             }
 
-         }
 
-     }
 
-     function toggleObjectClassPropertyString(obj, prop, classNames, shouldHaveClass) {
 
-         // obj/prop is either a node/'className' or a SVGAnimatedString/'baseVal'.
 
-         var currentClassNames = obj[prop].match(cssClassNameRegex) || [];
 
-         ko.utils.arrayForEach(classNames.match(cssClassNameRegex), function(className) {
 
-             ko.utils.addOrRemoveItem(currentClassNames, className, shouldHaveClass);
 
-         });
 
-         obj[prop] = currentClassNames.join(" ");
 
-     }
 
-     return {
 
-         fieldsIncludedWithJsonPost: ['authenticity_token', /^__RequestVerificationToken(_.*)?$/],
 
-         arrayForEach: function (array, action) {
 
-             for (var i = 0, j = array.length; i < j; i++)
 
-                 action(array[i], i);
 
-         },
 
-         arrayIndexOf: function (array, item) {
 
-             if (typeof Array.prototype.indexOf == "function")
 
-                 return Array.prototype.indexOf.call(array, item);
 
-             for (var i = 0, j = array.length; i < j; i++)
 
-                 if (array[i] === item)
 
-                     return i;
 
-             return -1;
 
-         },
 
-         arrayFirst: function (array, predicate, predicateOwner) {
 
-             for (var i = 0, j = array.length; i < j; i++)
 
-                 if (predicate.call(predicateOwner, array[i], i))
 
-                     return array[i];
 
-             return null;
 
-         },
 
-         arrayRemoveItem: function (array, itemToRemove) {
 
-             var index = ko.utils.arrayIndexOf(array, itemToRemove);
 
-             if (index > 0) {
 
-                 array.splice(index, 1);
 
-             }
 
-             else if (index === 0) {
 
-                 array.shift();
 
-             }
 
-         },
 
-         arrayGetDistinctValues: function (array) {
 
-             array = array || [];
 
-             var result = [];
 
-             for (var i = 0, j = array.length; i < j; i++) {
 
-                 if (ko.utils.arrayIndexOf(result, array[i]) < 0)
 
-                     result.push(array[i]);
 
-             }
 
-             return result;
 
-         },
 
-         arrayMap: function (array, mapping) {
 
-             array = array || [];
 
-             var result = [];
 
-             for (var i = 0, j = array.length; i < j; i++)
 
-                 result.push(mapping(array[i], i));
 
-             return result;
 
-         },
 
-         arrayFilter: function (array, predicate) {
 
-             array = array || [];
 
-             var result = [];
 
-             for (var i = 0, j = array.length; i < j; i++)
 
-                 if (predicate(array[i], i))
 
-                     result.push(array[i]);
 
-             return result;
 
-         },
 
-         arrayPushAll: function (array, valuesToPush) {
 
-             if (valuesToPush instanceof Array)
 
-                 array.push.apply(array, valuesToPush);
 
-             else
 
-                 for (var i = 0, j = valuesToPush.length; i < j; i++)
 
-                     array.push(valuesToPush[i]);
 
-             return array;
 
-         },
 
-         addOrRemoveItem: function(array, value, included) {
 
-             var existingEntryIndex = ko.utils.arrayIndexOf(ko.utils.peekObservable(array), value);
 
-             if (existingEntryIndex < 0) {
 
-                 if (included)
 
-                     array.push(value);
 
-             } else {
 
-                 if (!included)
 
-                     array.splice(existingEntryIndex, 1);
 
-             }
 
-         },
 
-         canSetPrototype: canSetPrototype,
 
-         extend: extend,
 
-         setPrototypeOf: setPrototypeOf,
 
-         setPrototypeOfOrExtend: canSetPrototype ? setPrototypeOf : extend,
 
-         objectForEach: objectForEach,
 
-         objectMap: function(source, mapping) {
 
-             if (!source)
 
-                 return source;
 
-             var target = {};
 
-             for (var prop in source) {
 
-                 if (source.hasOwnProperty(prop)) {
 
-                     target[prop] = mapping(source[prop], prop, source);
 
-                 }
 
-             }
 
-             return target;
 
-         },
 
-         emptyDomNode: function (domNode) {
 
-             while (domNode.firstChild) {
 
-                 ko.removeNode(domNode.firstChild);
 
-             }
 
-         },
 
-         moveCleanedNodesToContainerElement: function(nodes) {
 
-             // Ensure it's a real array, as we're about to reparent the nodes and
 
-             // we don't want the underlying collection to change while we're doing that.
 
-             var nodesArray = ko.utils.makeArray(nodes);
 
-             var templateDocument = (nodesArray[0] && nodesArray[0].ownerDocument) || document;
 
-             var container = templateDocument.createElement('div');
 
-             for (var i = 0, j = nodesArray.length; i < j; i++) {
 
-                 container.appendChild(ko.cleanNode(nodesArray[i]));
 
-             }
 
-             return container;
 
-         },
 
-         cloneNodes: function (nodesArray, shouldCleanNodes) {
 
-             for (var i = 0, j = nodesArray.length, newNodesArray = []; i < j; i++) {
 
-                 var clonedNode = nodesArray[i].cloneNode(true);
 
-                 newNodesArray.push(shouldCleanNodes ? ko.cleanNode(clonedNode) : clonedNode);
 
-             }
 
-             return newNodesArray;
 
-         },
 
-         setDomNodeChildren: function (domNode, childNodes) {
 
-             ko.utils.emptyDomNode(domNode);
 
-             if (childNodes) {
 
-                 for (var i = 0, j = childNodes.length; i < j; i++)
 
-                     domNode.appendChild(childNodes[i]);
 
-             }
 
-         },
 
-         replaceDomNodes: function (nodeToReplaceOrNodeArray, newNodesArray) {
 
-             var nodesToReplaceArray = nodeToReplaceOrNodeArray.nodeType ? [nodeToReplaceOrNodeArray] : nodeToReplaceOrNodeArray;
 
-             if (nodesToReplaceArray.length > 0) {
 
-                 var insertionPoint = nodesToReplaceArray[0];
 
-                 var parent = insertionPoint.parentNode;
 
-                 for (var i = 0, j = newNodesArray.length; i < j; i++)
 
-                     parent.insertBefore(newNodesArray[i], insertionPoint);
 
-                 for (var i = 0, j = nodesToReplaceArray.length; i < j; i++) {
 
-                     ko.removeNode(nodesToReplaceArray[i]);
 
-                 }
 
-             }
 
-         },
 
-         fixUpContinuousNodeArray: function(continuousNodeArray, parentNode) {
 
-             // Before acting on a set of nodes that were previously outputted by a template function, we have to reconcile
 
-             // them against what is in the DOM right now. It may be that some of the nodes have already been removed, or that
 
-             // new nodes might have been inserted in the middle, for example by a binding. Also, there may previously have been
 
-             // leading comment nodes (created by rewritten string-based templates) that have since been removed during binding.
 
-             // So, this function translates the old "map" output array into its best guess of the set of current DOM nodes.
 
-             //
 
-             // Rules:
 
-             //   [A] Any leading nodes that have been removed should be ignored
 
-             //       These most likely correspond to memoization nodes that were already removed during binding
 
-             //       See https://github.com/SteveSanderson/knockout/pull/440
 
-             //   [B] We want to output a continuous series of nodes. So, ignore any nodes that have already been removed,
 
-             //       and include any nodes that have been inserted among the previous collection
 
-             if (continuousNodeArray.length) {
 
-                 // The parent node can be a virtual element; so get the real parent node
 
-                 parentNode = (parentNode.nodeType === 8 && parentNode.parentNode) || parentNode;
 
-                 // Rule [A]
 
-                 while (continuousNodeArray.length && continuousNodeArray[0].parentNode !== parentNode)
 
-                     continuousNodeArray.splice(0, 1);
 
-                 // Rule [B]
 
-                 if (continuousNodeArray.length > 1) {
 
-                     var current = continuousNodeArray[0], last = continuousNodeArray[continuousNodeArray.length - 1];
 
-                     // Replace with the actual new continuous node set
 
-                     continuousNodeArray.length = 0;
 
-                     while (current !== last) {
 
-                         continuousNodeArray.push(current);
 
-                         current = current.nextSibling;
 
-                         if (!current) // Won't happen, except if the developer has manually removed some DOM elements (then we're in an undefined scenario)
 
-                             return;
 
-                     }
 
-                     continuousNodeArray.push(last);
 
-                 }
 
-             }
 
-             return continuousNodeArray;
 
-         },
 
-         setOptionNodeSelectionState: function (optionNode, isSelected) {
 
-             // IE6 sometimes throws "unknown error" if you try to write to .selected directly, whereas Firefox struggles with setAttribute. Pick one based on browser.
 
-             if (ieVersion < 7)
 
-                 optionNode.setAttribute("selected", isSelected);
 
-             else
 
-                 optionNode.selected = isSelected;
 
-         },
 
-         stringTrim: function (string) {
 
-             return string === null || string === undefined ? '' :
 
-                 string.trim ?
 
-                     string.trim() :
 
-                     string.toString().replace(/^[\s\xa0]+|[\s\xa0]+$/g, '');
 
-         },
 
-         stringStartsWith: function (string, startsWith) {
 
-             string = string || "";
 
-             if (startsWith.length > string.length)
 
-                 return false;
 
-             return string.substring(0, startsWith.length) === startsWith;
 
-         },
 
-         domNodeIsContainedBy: function (node, containedByNode) {
 
-             if (node === containedByNode)
 
-                 return true;
 
-             if (node.nodeType === 11)
 
-                 return false; // Fixes issue #1162 - can't use node.contains for document fragments on IE8
 
-             if (containedByNode.contains)
 
-                 return containedByNode.contains(node.nodeType === 3 ? node.parentNode : node);
 
-             if (containedByNode.compareDocumentPosition)
 
-                 return (containedByNode.compareDocumentPosition(node) & 16) == 16;
 
-             while (node && node != containedByNode) {
 
-                 node = node.parentNode;
 
-             }
 
-             return !!node;
 
-         },
 
-         domNodeIsAttachedToDocument: function (node) {
 
-             return ko.utils.domNodeIsContainedBy(node, node.ownerDocument.documentElement);
 
-         },
 
-         anyDomNodeIsAttachedToDocument: function(nodes) {
 
-             return !!ko.utils.arrayFirst(nodes, ko.utils.domNodeIsAttachedToDocument);
 
-         },
 
-         tagNameLower: function(element) {
 
-             // For HTML elements, tagName will always be upper case; for XHTML elements, it'll be lower case.
 
-             // Possible future optimization: If we know it's an element from an XHTML document (not HTML),
 
-             // we don't need to do the .toLowerCase() as it will always be lower case anyway.
 
-             return element && element.tagName && element.tagName.toLowerCase();
 
-         },
 
-         registerEventHandler: function (element, eventType, handler) {
 
-             var mustUseAttachEvent = ieVersion && eventsThatMustBeRegisteredUsingAttachEvent[eventType];
 
-             if (!mustUseAttachEvent && jQueryInstance) {
 
-                 jQueryInstance(element)['bind'](eventType, handler);
 
-             } else if (!mustUseAttachEvent && typeof element.addEventListener == "function")
 
-                 element.addEventListener(eventType, handler, false);
 
-             else if (typeof element.attachEvent != "undefined") {
 
-                 var attachEventHandler = function (event) { handler.call(element, event); },
 
-                     attachEventName = "on" + eventType;
 
-                 element.attachEvent(attachEventName, attachEventHandler);
 
-                 // IE does not dispose attachEvent handlers automatically (unlike with addEventListener)
 
-                 // so to avoid leaks, we have to remove them manually. See bug #856
 
-                 ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
 
-                     element.detachEvent(attachEventName, attachEventHandler);
 
-                 });
 
-             } else
 
-                 throw new Error("Browser doesn't support addEventListener or attachEvent");
 
-         },
 
-         triggerEvent: function (element, eventType) {
 
-             if (!(element && element.nodeType))
 
-                 throw new Error("element must be a DOM node when calling triggerEvent");
 
-             // For click events on checkboxes and radio buttons, jQuery toggles the element checked state *after* the
 
-             // event handler runs instead of *before*. (This was fixed in 1.9 for checkboxes but not for radio buttons.)
 
-             // IE doesn't change the checked state when you trigger the click event using "fireEvent".
 
-             // In both cases, we'll use the click method instead.
 
-             var useClickWorkaround = isClickOnCheckableElement(element, eventType);
 
-             if (jQueryInstance && !useClickWorkaround) {
 
-                 jQueryInstance(element)['trigger'](eventType);
 
-             } else if (typeof document.createEvent == "function") {
 
-                 if (typeof element.dispatchEvent == "function") {
 
-                     var eventCategory = knownEventTypesByEventName[eventType] || "HTMLEvents";
 
-                     var event = document.createEvent(eventCategory);
 
-                     event.initEvent(eventType, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, element);
 
-                     element.dispatchEvent(event);
 
-                 }
 
-                 else
 
-                     throw new Error("The supplied element doesn't support dispatchEvent");
 
-             } else if (useClickWorkaround && element.click) {
 
-                 element.click();
 
-             } else if (typeof element.fireEvent != "undefined") {
 
-                 element.fireEvent("on" + eventType);
 
-             } else {
 
-                 throw new Error("Browser doesn't support triggering events");
 
-             }
 
-         },
 
-         unwrapObservable: function (value) {
 
-             return ko.isObservable(value) ? value() : value;
 
-         },
 
-         peekObservable: function (value) {
 
-             return ko.isObservable(value) ? value.peek() : value;
 
-         },
 
-         toggleDomNodeCssClass: toggleDomNodeCssClass,
 
-         setTextContent: function(element, textContent) {
 
-             var value = ko.utils.unwrapObservable(textContent);
 
-             if ((value === null) || (value === undefined))
 
-                 value = "";
 
-             // We need there to be exactly one child: a text node.
 
-             // If there are no children, more than one, or if it's not a text node,
 
-             // we'll clear everything and create a single text node.
 
-             var innerTextNode = ko.virtualElements.firstChild(element);
 
-             if (!innerTextNode || innerTextNode.nodeType != 3 || ko.virtualElements.nextSibling(innerTextNode)) {
 
-                 ko.virtualElements.setDomNodeChildren(element, [element.ownerDocument.createTextNode(value)]);
 
-             } else {
 
-                 innerTextNode.data = value;
 
-             }
 
-             ko.utils.forceRefresh(element);
 
-         },
 
-         setElementName: function(element, name) {
 
-             element.name = name;
 
-             // Workaround IE 6/7 issue
 
-             // - https://github.com/SteveSanderson/knockout/issues/197
 
-             // - http://www.matts411.com/post/setting_the_name_attribute_in_ie_dom/
 
-             if (ieVersion <= 7) {
 
-                 try {
 
-                     element.mergeAttributes(document.createElement("<input name='" + element.name + "'/>"), false);
 
-                 }
 
-                 catch(e) {} // For IE9 with doc mode "IE9 Standards" and browser mode "IE9 Compatibility View"
 
-             }
 
-         },
 
-         forceRefresh: function(node) {
 
-             // Workaround for an IE9 rendering bug - https://github.com/SteveSanderson/knockout/issues/209
 
-             if (ieVersion >= 9) {
 
-                 // For text nodes and comment nodes (most likely virtual elements), we will have to refresh the container
 
-                 var elem = node.nodeType == 1 ? node : node.parentNode;
 
-                 if (elem.style)
 
-                     elem.style.zoom = elem.style.zoom;
 
-             }
 
-         },
 
-         ensureSelectElementIsRenderedCorrectly: function(selectElement) {
 
-             // Workaround for IE9 rendering bug - it doesn't reliably display all the text in dynamically-added select boxes unless you force it to re-render by updating the width.
 
-             // (See https://github.com/SteveSanderson/knockout/issues/312, http://stackoverflow.com/questions/5908494/select-only-shows-first-char-of-selected-option)
 
-             // Also fixes IE7 and IE8 bug that causes selects to be zero width if enclosed by 'if' or 'with'. (See issue #839)
 
-             if (ieVersion) {
 
-                 var originalWidth = selectElement.style.width;
 
-                 selectElement.style.width = 0;
 
-                 selectElement.style.width = originalWidth;
 
-             }
 
-         },
 
-         range: function (min, max) {
 
-             min = ko.utils.unwrapObservable(min);
 
-             max = ko.utils.unwrapObservable(max);
 
-             var result = [];
 
-             for (var i = min; i <= max; i++)
 
-                 result.push(i);
 
-             return result;
 
-         },
 
-         makeArray: function(arrayLikeObject) {
 
-             var result = [];
 
-             for (var i = 0, j = arrayLikeObject.length; i < j; i++) {
 
-                 result.push(arrayLikeObject[i]);
 
-             };
 
-             return result;
 
-         },
 
-         isIe6 : isIe6,
 
-         isIe7 : isIe7,
 
-         ieVersion : ieVersion,
 
-         getFormFields: function(form, fieldName) {
 
-             var fields = ko.utils.makeArray(form.getElementsByTagName("input")).concat(ko.utils.makeArray(form.getElementsByTagName("textarea")));
 
-             var isMatchingField = (typeof fieldName == 'string')
 
-                 ? function(field) { return field.name === fieldName }
 
-                 : function(field) { return fieldName.test(field.name) }; // Treat fieldName as regex or object containing predicate
 
-             var matches = [];
 
-             for (var i = fields.length - 1; i >= 0; i--) {
 
-                 if (isMatchingField(fields[i]))
 
-                     matches.push(fields[i]);
 
-             };
 
-             return matches;
 
-         },
 
-         parseJson: function (jsonString) {
 
-             if (typeof jsonString == "string") {
 
-                 jsonString = ko.utils.stringTrim(jsonString);
 
-                 if (jsonString) {
 
-                     if (JSON && JSON.parse) // Use native parsing where available
 
-                         return JSON.parse(jsonString);
 
-                     return (new Function("return " + jsonString))(); // Fallback on less safe parsing for older browsers
 
-                 }
 
-             }
 
-             return null;
 
-         },
 
-         stringifyJson: function (data, replacer, space) {   // replacer and space are optional
 
-             if (!JSON || !JSON.stringify)
 
-                 throw new Error("Cannot find JSON.stringify(). Some browsers (e.g., IE < 8) don't support it natively, but you can overcome this by adding a script reference to json2.js, downloadable from http://www.json.org/json2.js");
 
-             return JSON.stringify(ko.utils.unwrapObservable(data), replacer, space);
 
-         },
 
-         postJson: function (urlOrForm, data, options) {
 
-             options = options || {};
 
-             var params = options['params'] || {};
 
-             var includeFields = options['includeFields'] || this.fieldsIncludedWithJsonPost;
 
-             var url = urlOrForm;
 
-             // If we were given a form, use its 'action' URL and pick out any requested field values
 
-             if((typeof urlOrForm == 'object') && (ko.utils.tagNameLower(urlOrForm) === "form")) {
 
-                 var originalForm = urlOrForm;
 
-                 url = originalForm.action;
 
-                 for (var i = includeFields.length - 1; i >= 0; i--) {
 
-                     var fields = ko.utils.getFormFields(originalForm, includeFields[i]);
 
-                     for (var j = fields.length - 1; j >= 0; j--)
 
-                         params[fields[j].name] = fields[j].value;
 
-                 }
 
-             }
 
-             data = ko.utils.unwrapObservable(data);
 
-             var form = document.createElement("form");
 
-             form.style.display = "none";
 
-             form.action = url;
 
-             form.method = "post";
 
-             for (var key in data) {
 
-                 // Since 'data' this is a model object, we include all properties including those inherited from its prototype
 
-                 var input = document.createElement("input");
 
-                 input.type = "hidden";
 
-                 input.name = key;
 
-                 input.value = ko.utils.stringifyJson(ko.utils.unwrapObservable(data[key]));
 
-                 form.appendChild(input);
 
-             }
 
-             objectForEach(params, function(key, value) {
 
-                 var input = document.createElement("input");
 
-                 input.type = "hidden";
 
-                 input.name = key;
 
-                 input.value = value;
 
-                 form.appendChild(input);
 
-             });
 
-             document.body.appendChild(form);
 
-             options['submitter'] ? options['submitter'](form) : form.submit();
 
-             setTimeout(function () { form.parentNode.removeChild(form); }, 0);
 
-         }
 
-     }
 
- }());
 
- ko.exportSymbol('utils', ko.utils);
 
- ko.exportSymbol('utils.arrayForEach', ko.utils.arrayForEach);
 
- ko.exportSymbol('utils.arrayFirst', ko.utils.arrayFirst);
 
- ko.exportSymbol('utils.arrayFilter', ko.utils.arrayFilter);
 
- ko.exportSymbol('utils.arrayGetDistinctValues', ko.utils.arrayGetDistinctValues);
 
- ko.exportSymbol('utils.arrayIndexOf', ko.utils.arrayIndexOf);
 
- ko.exportSymbol('utils.arrayMap', ko.utils.arrayMap);
 
- ko.exportSymbol('utils.arrayPushAll', ko.utils.arrayPushAll);
 
- ko.exportSymbol('utils.arrayRemoveItem', ko.utils.arrayRemoveItem);
 
- ko.exportSymbol('utils.extend', ko.utils.extend);
 
- ko.exportSymbol('utils.fieldsIncludedWithJsonPost', ko.utils.fieldsIncludedWithJsonPost);
 
- ko.exportSymbol('utils.getFormFields', ko.utils.getFormFields);
 
- ko.exportSymbol('utils.peekObservable', ko.utils.peekObservable);
 
- ko.exportSymbol('utils.postJson', ko.utils.postJson);
 
- ko.exportSymbol('utils.parseJson', ko.utils.parseJson);
 
- ko.exportSymbol('utils.registerEventHandler', ko.utils.registerEventHandler);
 
- ko.exportSymbol('utils.stringifyJson', ko.utils.stringifyJson);
 
- ko.exportSymbol('utils.range', ko.utils.range);
 
- ko.exportSymbol('utils.toggleDomNodeCssClass', ko.utils.toggleDomNodeCssClass);
 
- ko.exportSymbol('utils.triggerEvent', ko.utils.triggerEvent);
 
- ko.exportSymbol('utils.unwrapObservable', ko.utils.unwrapObservable);
 
- ko.exportSymbol('utils.objectForEach', ko.utils.objectForEach);
 
- ko.exportSymbol('utils.addOrRemoveItem', ko.utils.addOrRemoveItem);
 
- ko.exportSymbol('utils.setTextContent', ko.utils.setTextContent);
 
- ko.exportSymbol('unwrap', ko.utils.unwrapObservable); // Convenient shorthand, because this is used so commonly
 
- if (!Function.prototype['bind']) {
 
-     // Function.prototype.bind is a standard part of ECMAScript 5th Edition (December 2009, http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf)
 
-     // In case the browser doesn't implement it natively, provide a JavaScript implementation. This implementation is based on the one in prototype.js
 
-     Function.prototype['bind'] = function (object) {
 
-         var originalFunction = this;
 
-         if (arguments.length === 1) {
 
-             return function () {
 
-                 return originalFunction.apply(object, arguments);
 
-             };
 
-         } else {
 
-             var partialArgs = Array.prototype.slice.call(arguments, 1);
 
-             return function () {
 
-                 var args = partialArgs.slice(0);
 
-                 args.push.apply(args, arguments);
 
-                 return originalFunction.apply(object, args);
 
-             };
 
-         }
 
-     };
 
- }
 
- ko.utils.domData = new (function () {
 
-     var uniqueId = 0;
 
-     var dataStoreKeyExpandoPropertyName = "__ko__" + (new Date).getTime();
 
-     var dataStore = {};
 
-     function getAll(node, createIfNotFound) {
 
-         var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
 
-         var hasExistingDataStore = dataStoreKey && (dataStoreKey !== "null") && dataStore[dataStoreKey];
 
-         if (!hasExistingDataStore) {
 
-             if (!createIfNotFound)
 
-                 return undefined;
 
-             dataStoreKey = node[dataStoreKeyExpandoPropertyName] = "ko" + uniqueId++;
 
-             dataStore[dataStoreKey] = {};
 
-         }
 
-         return dataStore[dataStoreKey];
 
-     }
 
-     return {
 
-         get: function (node, key) {
 
-             var allDataForNode = getAll(node, false);
 
-             return allDataForNode === undefined ? undefined : allDataForNode[key];
 
-         },
 
-         set: function (node, key, value) {
 
-             if (value === undefined) {
 
-                 // Make sure we don't actually create a new domData key if we are actually deleting a value
 
-                 if (getAll(node, false) === undefined)
 
-                     return;
 
-             }
 
-             var allDataForNode = getAll(node, true);
 
-             allDataForNode[key] = value;
 
-         },
 
-         clear: function (node) {
 
-             var dataStoreKey = node[dataStoreKeyExpandoPropertyName];
 
-             if (dataStoreKey) {
 
-                 delete dataStore[dataStoreKey];
 
-                 node[dataStoreKeyExpandoPropertyName] = null;
 
-                 return true; // Exposing "did clean" flag purely so specs can infer whether things have been cleaned up as intended
 
-             }
 
-             return false;
 
-         },
 
-         nextKey: function () {
 
-             return (uniqueId++) + dataStoreKeyExpandoPropertyName;
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('utils.domData', ko.utils.domData);
 
- ko.exportSymbol('utils.domData.clear', ko.utils.domData.clear); // Exporting only so specs can clear up after themselves fully
 
- ko.utils.domNodeDisposal = new (function () {
 
-     var domDataKey = ko.utils.domData.nextKey();
 
-     var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document
 
-     var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document
 
-     function getDisposeCallbacksCollection(node, createIfNotFound) {
 
-         var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);
 
-         if ((allDisposeCallbacks === undefined) && createIfNotFound) {
 
-             allDisposeCallbacks = [];
 
-             ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);
 
-         }
 
-         return allDisposeCallbacks;
 
-     }
 
-     function destroyCallbacksCollection(node) {
 
-         ko.utils.domData.set(node, domDataKey, undefined);
 
-     }
 
-     function cleanSingleNode(node) {
 
-         // Run all the dispose callbacks
 
-         var callbacks = getDisposeCallbacksCollection(node, false);
 
-         if (callbacks) {
 
-             callbacks = callbacks.slice(0); // Clone, as the array may be modified during iteration (typically, callbacks will remove themselves)
 
-             for (var i = 0; i < callbacks.length; i++)
 
-                 callbacks[i](node);
 
-         }
 
-         // Erase the DOM data
 
-         ko.utils.domData.clear(node);
 
-         // Perform cleanup needed by external libraries (currently only jQuery, but can be extended)
 
-         ko.utils.domNodeDisposal["cleanExternalData"](node);
 
-         // Clear any immediate-child comment nodes, as these wouldn't have been found by
 
-         // node.getElementsByTagName("*") in cleanNode() (comment nodes aren't elements)
 
-         if (cleanableNodeTypesWithDescendants[node.nodeType])
 
-             cleanImmediateCommentTypeChildren(node);
 
-     }
 
-     function cleanImmediateCommentTypeChildren(nodeWithChildren) {
 
-         var child, nextChild = nodeWithChildren.firstChild;
 
-         while (child = nextChild) {
 
-             nextChild = child.nextSibling;
 
-             if (child.nodeType === 8)
 
-                 cleanSingleNode(child);
 
-         }
 
-     }
 
-     return {
 
-         addDisposeCallback : function(node, callback) {
 
-             if (typeof callback != "function")
 
-                 throw new Error("Callback must be a function");
 
-             getDisposeCallbacksCollection(node, true).push(callback);
 
-         },
 
-         removeDisposeCallback : function(node, callback) {
 
-             var callbacksCollection = getDisposeCallbacksCollection(node, false);
 
-             if (callbacksCollection) {
 
-                 ko.utils.arrayRemoveItem(callbacksCollection, callback);
 
-                 if (callbacksCollection.length == 0)
 
-                     destroyCallbacksCollection(node);
 
-             }
 
-         },
 
-         cleanNode : function(node) {
 
-             // First clean this node, where applicable
 
-             if (cleanableNodeTypes[node.nodeType]) {
 
-                 cleanSingleNode(node);
 
-                 // ... then its descendants, where applicable
 
-                 if (cleanableNodeTypesWithDescendants[node.nodeType]) {
 
-                     // Clone the descendants list in case it changes during iteration
 
-                     var descendants = [];
 
-                     ko.utils.arrayPushAll(descendants, node.getElementsByTagName("*"));
 
-                     for (var i = 0, j = descendants.length; i < j; i++)
 
-                         cleanSingleNode(descendants[i]);
 
-                 }
 
-             }
 
-             return node;
 
-         },
 
-         removeNode : function(node) {
 
-             ko.cleanNode(node);
 
-             if (node.parentNode)
 
-                 node.parentNode.removeChild(node);
 
-         },
 
-         "cleanExternalData" : function (node) {
 
-             // Special support for jQuery here because it's so commonly used.
 
-             // Many jQuery plugins (including jquery.tmpl) store data using jQuery's equivalent of domData
 
-             // so notify it to tear down any resources associated with the node & descendants here.
 
-             if (jQueryInstance && (typeof jQueryInstance['cleanData'] == "function"))
 
-                 jQueryInstance['cleanData']([node]);
 
-         }
 
-     };
 
- })();
 
- ko.cleanNode = ko.utils.domNodeDisposal.cleanNode; // Shorthand name for convenience
 
- ko.removeNode = ko.utils.domNodeDisposal.removeNode; // Shorthand name for convenience
 
- ko.exportSymbol('cleanNode', ko.cleanNode);
 
- ko.exportSymbol('removeNode', ko.removeNode);
 
- ko.exportSymbol('utils.domNodeDisposal', ko.utils.domNodeDisposal);
 
- ko.exportSymbol('utils.domNodeDisposal.addDisposeCallback', ko.utils.domNodeDisposal.addDisposeCallback);
 
- ko.exportSymbol('utils.domNodeDisposal.removeDisposeCallback', ko.utils.domNodeDisposal.removeDisposeCallback);
 
- (function () {
 
-     var leadingCommentRegex = /^(\s*)<!--(.*?)-->/;
 
-     function simpleHtmlParse(html, documentContext) {
 
-         documentContext || (documentContext = document);
 
-         var windowContext = documentContext['parentWindow'] || documentContext['defaultView'] || window;
 
-         // Based on jQuery's "clean" function, but only accounting for table-related elements.
 
-         // If you have referenced jQuery, this won't be used anyway - KO will use jQuery's "clean" function directly
 
-         // Note that there's still an issue in IE < 9 whereby it will discard comment nodes that are the first child of
 
-         // a descendant node. For example: "<div><!-- mycomment -->abc</div>" will get parsed as "<div>abc</div>"
 
-         // This won't affect anyone who has referenced jQuery, and there's always the workaround of inserting a dummy node
 
-         // (possibly a text node) in front of the comment. So, KO does not attempt to workaround this IE issue automatically at present.
 
-         // Trim whitespace, otherwise indexOf won't work as expected
 
-         var tags = ko.utils.stringTrim(html).toLowerCase(), div = documentContext.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 windowContext['innerShiv'] == "function") {
 
-             div.appendChild(windowContext['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, documentContext) {
 
-         // jQuery's "parseHTML" function was introduced in jQuery 1.8.0 and is a documented public API.
 
-         if (jQueryInstance['parseHTML']) {
 
-             return jQueryInstance['parseHTML'](html, documentContext) || []; // Ensure we always return an array and never null
 
-         } else {
 
-             // For jQuery < 1.8.0, we fall back on the undocumented internal "clean" function.
 
-             var elems = jQueryInstance['clean']([html], documentContext);
 
-             // 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, documentContext) {
 
-         return jQueryInstance ? jQueryHtmlParse(html, documentContext)   // As below, benefit from jQuery's optimisations where possible
 
-                               : simpleHtmlParse(html, documentContext);  // ... otherwise, this simple logic will do in most common cases.
 
-     };
 
-     ko.utils.setHtml = function(node, html) {
 
-         ko.utils.emptyDomNode(node);
 
-         // There's no legitimate reason to display a stringified observable without unwrapping it, so we'll unwrap it
 
-         html = ko.utils.unwrapObservable(html);
 
-         if ((html !== null) && (html !== undefined)) {
 
-             if (typeof html != 'string')
 
-                 html = html.toString();
 
-             // jQuery contains a lot of sophisticated code to parse arbitrary HTML fragments,
 
-             // for example <tr> elements which are not normally allowed to exist on their own.
 
-             // If you've referenced jQuery we'll use that rather than duplicating its code.
 
-             if (jQueryInstance) {
 
-                 jQueryInstance(node)['html'](html);
 
-             } else {
 
-                 // ... otherwise, use KO's own parsing logic.
 
-                 var parsedNodes = ko.utils.parseHtmlFragment(html, node.ownerDocument);
 
-                 for (var i = 0; i < parsedNodes.length; i++)
 
-                     node.appendChild(parsedNodes[i]);
 
-             }
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('utils.parseHtmlFragment', ko.utils.parseHtmlFragment);
 
- ko.exportSymbol('utils.setHtml', ko.utils.setHtml);
 
- ko.memoization = (function () {
 
-     var memos = {};
 
-     function randomMax8HexChars() {
 
-         return (((1 + Math.random()) * 0x100000000) | 0).toString(16).substring(1);
 
-     }
 
-     function generateRandomId() {
 
-         return randomMax8HexChars() + randomMax8HexChars();
 
-     }
 
-     function findMemoNodes(rootNode, appendToArray) {
 
-         if (!rootNode)
 
-             return;
 
-         if (rootNode.nodeType == 8) {
 
-             var memoId = ko.memoization.parseMemoText(rootNode.nodeValue);
 
-             if (memoId != null)
 
-                 appendToArray.push({ domNode: rootNode, memoId: memoId });
 
-         } else if (rootNode.nodeType == 1) {
 
-             for (var i = 0, childNodes = rootNode.childNodes, j = childNodes.length; i < j; i++)
 
-                 findMemoNodes(childNodes[i], appendToArray);
 
-         }
 
-     }
 
-     return {
 
-         memoize: function (callback) {
 
-             if (typeof callback != "function")
 
-                 throw new Error("You can only pass a function to ko.memoization.memoize()");
 
-             var memoId = generateRandomId();
 
-             memos[memoId] = callback;
 
-             return "<!--[ko_memo:" + memoId + "]-->";
 
-         },
 
-         unmemoize: function (memoId, callbackParams) {
 
-             var callback = memos[memoId];
 
-             if (callback === undefined)
 
-                 throw new Error("Couldn't find any memo with ID " + memoId + ". Perhaps it's already been unmemoized.");
 
-             try {
 
-                 callback.apply(null, callbackParams || []);
 
-                 return true;
 
-             }
 
-             finally { delete memos[memoId]; }
 
-         },
 
-         unmemoizeDomNodeAndDescendants: function (domNode, extraCallbackParamsArray) {
 
-             var memos = [];
 
-             findMemoNodes(domNode, memos);
 
-             for (var i = 0, j = memos.length; i < j; i++) {
 
-                 var node = memos[i].domNode;
 
-                 var combinedParams = [node];
 
-                 if (extraCallbackParamsArray)
 
-                     ko.utils.arrayPushAll(combinedParams, extraCallbackParamsArray);
 
-                 ko.memoization.unmemoize(memos[i].memoId, combinedParams);
 
-                 node.nodeValue = ""; // Neuter this node so we don't try to unmemoize it again
 
-                 if (node.parentNode)
 
-                     node.parentNode.removeChild(node); // If possible, erase it totally (not always possible - someone else might just hold a reference to it then call unmemoizeDomNodeAndDescendants again)
 
-             }
 
-         },
 
-         parseMemoText: function (memoText) {
 
-             var match = memoText.match(/^\[ko_memo\:(.*?)\]$/);
 
-             return match ? match[1] : null;
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('memoization', ko.memoization);
 
- ko.exportSymbol('memoization.memoize', ko.memoization.memoize);
 
- ko.exportSymbol('memoization.unmemoize', ko.memoization.unmemoize);
 
- ko.exportSymbol('memoization.parseMemoText', ko.memoization.parseMemoText);
 
- ko.exportSymbol('memoization.unmemoizeDomNodeAndDescendants', ko.memoization.unmemoizeDomNodeAndDescendants);
 
- ko.extenders = {
 
-     'throttle': function(target, timeout) {
 
-         // Throttling means two things:
 
-         // (1) For dependent observables, we throttle *evaluations* so that, no matter how fast its dependencies
 
-         //     notify updates, the target doesn't re-evaluate (and hence doesn't notify) faster than a certain rate
 
-         target['throttleEvaluation'] = timeout;
 
-         // (2) For writable targets (observables, or writable dependent observables), we throttle *writes*
 
-         //     so the target cannot change value synchronously or faster than a certain rate
 
-         var writeTimeoutInstance = null;
 
-         return ko.dependentObservable({
 
-             'read': target,
 
-             'write': function(value) {
 
-                 clearTimeout(writeTimeoutInstance);
 
-                 writeTimeoutInstance = setTimeout(function() {
 
-                     target(value);
 
-                 }, timeout);
 
-             }
 
-         });
 
-     },
 
-     'rateLimit': function(target, options) {
 
-         var timeout, method, limitFunction;
 
-         if (typeof options == 'number') {
 
-             timeout = options;
 
-         } else {
 
-             timeout = options['timeout'];
 
-             method = options['method'];
 
-         }
 
-         limitFunction = method == 'notifyWhenChangesStop' ?  debounce : throttle;
 
-         target.limit(function(callback) {
 
-             return limitFunction(callback, timeout);
 
-         });
 
-     },
 
-     'notify': function(target, notifyWhen) {
 
-         target["equalityComparer"] = notifyWhen == "always" ?
 
-             null :  // null equalityComparer means to always notify
 
-             valuesArePrimitiveAndEqual;
 
-     }
 
- };
 
- var primitiveTypes = { 'undefined':1, 'boolean':1, 'number':1, 'string':1 };
 
- function valuesArePrimitiveAndEqual(a, b) {
 
-     var oldValueIsPrimitive = (a === null) || (typeof(a) in primitiveTypes);
 
-     return oldValueIsPrimitive ? (a === b) : false;
 
- }
 
- function throttle(callback, timeout) {
 
-     var timeoutInstance;
 
-     return function () {
 
-         if (!timeoutInstance) {
 
-             timeoutInstance = setTimeout(function() {
 
-                 timeoutInstance = undefined;
 
-                 callback();
 
-             }, timeout);
 
-         }
 
-     };
 
- }
 
- function debounce(callback, timeout) {
 
-     var timeoutInstance;
 
-     return function () {
 
-         clearTimeout(timeoutInstance);
 
-         timeoutInstance = setTimeout(callback, timeout);
 
-     };
 
- }
 
- function applyExtenders(requestedExtenders) {
 
-     var target = this;
 
-     if (requestedExtenders) {
 
-         ko.utils.objectForEach(requestedExtenders, function(key, value) {
 
-             var extenderHandler = ko.extenders[key];
 
-             if (typeof extenderHandler == 'function') {
 
-                 target = extenderHandler(target, value) || target;
 
-             }
 
-         });
 
-     }
 
-     return target;
 
- }
 
- ko.exportSymbol('extenders', ko.extenders);
 
- ko.subscription = function (target, callback, disposeCallback) {
 
-     this._target = target;
 
-     this.callback = callback;
 
-     this.disposeCallback = disposeCallback;
 
-     this.isDisposed = false;
 
-     ko.exportProperty(this, 'dispose', this.dispose);
 
- };
 
- ko.subscription.prototype.dispose = function () {
 
-     this.isDisposed = true;
 
-     this.disposeCallback();
 
- };
 
- ko.subscribable = function () {
 
-     ko.utils.setPrototypeOfOrExtend(this, ko.subscribable['fn']);
 
-     this._subscriptions = {};
 
-     this._versionNumber = 1;
 
- }
 
- var defaultEvent = "change";
 
- var ko_subscribable_fn = {
 
-     subscribe: function (callback, callbackTarget, event) {
 
-         var self = this;
 
-         event = event || defaultEvent;
 
-         var boundCallback = callbackTarget ? callback.bind(callbackTarget) : callback;
 
-         var subscription = new ko.subscription(self, boundCallback, function () {
 
-             ko.utils.arrayRemoveItem(self._subscriptions[event], subscription);
 
-             if (self.afterSubscriptionRemove)
 
-                 self.afterSubscriptionRemove(event);
 
-         });
 
-         if (self.beforeSubscriptionAdd)
 
-             self.beforeSubscriptionAdd(event);
 
-         if (!self._subscriptions[event])
 
-             self._subscriptions[event] = [];
 
-         self._subscriptions[event].push(subscription);
 
-         return subscription;
 
-     },
 
-     "notifySubscribers": function (valueToNotify, event) {
 
-         event = event || defaultEvent;
 
-         if (event === defaultEvent) {
 
-             this.updateVersion();
 
-         }
 
-         if (this.hasSubscriptionsForEvent(event)) {
 
-             try {
 
-                 ko.dependencyDetection.begin(); // Begin suppressing dependency detection (by setting the top frame to undefined)
 
-                 for (var a = this._subscriptions[event].slice(0), i = 0, subscription; subscription = a[i]; ++i) {
 
-                     // In case a subscription was disposed during the arrayForEach cycle, check
 
-                     // for isDisposed on each subscription before invoking its callback
 
-                     if (!subscription.isDisposed)
 
-                         subscription.callback(valueToNotify);
 
-                 }
 
-             } finally {
 
-                 ko.dependencyDetection.end(); // End suppressing dependency detection
 
-             }
 
-         }
 
-     },
 
-     getVersion: function () {
 
-         return this._versionNumber;
 
-     },
 
-     hasChanged: function (versionToCheck) {
 
-         return this.getVersion() !== versionToCheck;
 
-     },
 
-     updateVersion: function () {
 
-         ++this._versionNumber;
 
-     },
 
-     limit: function(limitFunction) {
 
-         var self = this, selfIsObservable = ko.isObservable(self),
 
-             isPending, previousValue, pendingValue, beforeChange = 'beforeChange';
 
-         if (!self._origNotifySubscribers) {
 
-             self._origNotifySubscribers = self["notifySubscribers"];
 
-             self["notifySubscribers"] = function(value, event) {
 
-                 if (!event || event === defaultEvent) {
 
-                     self._rateLimitedChange(value);
 
-                 } else if (event === beforeChange) {
 
-                     self._rateLimitedBeforeChange(value);
 
-                 } else {
 
-                     self._origNotifySubscribers(value, event);
 
-                 }
 
-             };
 
-         }
 
-         var finish = limitFunction(function() {
 
-             // If an observable provided a reference to itself, access it to get the latest value.
 
-             // This allows computed observables to delay calculating their value until needed.
 
-             if (selfIsObservable && pendingValue === self) {
 
-                 pendingValue = self();
 
-             }
 
-             isPending = false;
 
-             if (self.isDifferent(previousValue, pendingValue)) {
 
-                 self._origNotifySubscribers(previousValue = pendingValue);
 
-             }
 
-         });
 
-         self._rateLimitedChange = function(value) {
 
-             isPending = true;
 
-             pendingValue = value;
 
-             finish();
 
-         };
 
-         self._rateLimitedBeforeChange = function(value) {
 
-             if (!isPending) {
 
-                 previousValue = value;
 
-                 self._origNotifySubscribers(value, beforeChange);
 
-             }
 
-         };
 
-     },
 
-     hasSubscriptionsForEvent: function(event) {
 
-         return this._subscriptions[event] && this._subscriptions[event].length;
 
-     },
 
-     getSubscriptionsCount: function (event) {
 
-         if (event) {
 
-             return this._subscriptions[event] && this._subscriptions[event].length || 0;
 
-         } else {
 
-             var total = 0;
 
-             ko.utils.objectForEach(this._subscriptions, function(eventName, subscriptions) {
 
-                 total += subscriptions.length;
 
-             });
 
-             return total;
 
-         }
 
-     },
 
-     isDifferent: function(oldValue, newValue) {
 
-         return !this['equalityComparer'] || !this['equalityComparer'](oldValue, newValue);
 
-     },
 
-     extend: applyExtenders
 
- };
 
- ko.exportProperty(ko_subscribable_fn, 'subscribe', ko_subscribable_fn.subscribe);
 
- ko.exportProperty(ko_subscribable_fn, 'extend', ko_subscribable_fn.extend);
 
- ko.exportProperty(ko_subscribable_fn, 'getSubscriptionsCount', ko_subscribable_fn.getSubscriptionsCount);
 
- // For browsers that support proto assignment, we overwrite the prototype of each
 
- // observable instance. Since observables are functions, we need Function.prototype
 
- // to still be in the prototype chain.
 
- if (ko.utils.canSetPrototype) {
 
-     ko.utils.setPrototypeOf(ko_subscribable_fn, Function.prototype);
 
- }
 
- ko.subscribable['fn'] = ko_subscribable_fn;
 
- ko.isSubscribable = function (instance) {
 
-     return instance != null && typeof instance.subscribe == "function" && typeof instance["notifySubscribers"] == "function";
 
- };
 
- ko.exportSymbol('subscribable', ko.subscribable);
 
- ko.exportSymbol('isSubscribable', ko.isSubscribable);
 
- ko.computedContext = ko.dependencyDetection = (function () {
 
-     var outerFrames = [],
 
-         currentFrame,
 
-         lastId = 0;
 
-     // Return a unique ID that can be assigned to an observable for dependency tracking.
 
-     // Theoretically, you could eventually overflow the number storage size, resulting
 
-     // in duplicate IDs. But in JavaScript, the largest exact integral value is 2^53
 
-     // or 9,007,199,254,740,992. If you created 1,000,000 IDs per second, it would
 
-     // take over 285 years to reach that number.
 
-     // Reference http://blog.vjeux.com/2010/javascript/javascript-max_int-number-limits.html
 
-     function getId() {
 
-         return ++lastId;
 
-     }
 
-     function begin(options) {
 
-         outerFrames.push(currentFrame);
 
-         currentFrame = options;
 
-     }
 
-     function end() {
 
-         currentFrame = outerFrames.pop();
 
-     }
 
-     return {
 
-         begin: begin,
 
-         end: end,
 
-         registerDependency: function (subscribable) {
 
-             if (currentFrame) {
 
-                 if (!ko.isSubscribable(subscribable))
 
-                     throw new Error("Only subscribable things can act as dependencies");
 
-                 currentFrame.callback(subscribable, subscribable._id || (subscribable._id = getId()));
 
-             }
 
-         },
 
-         ignore: function (callback, callbackTarget, callbackArgs) {
 
-             try {
 
-                 begin();
 
-                 return callback.apply(callbackTarget, callbackArgs || []);
 
-             } finally {
 
-                 end();
 
-             }
 
-         },
 
-         getDependenciesCount: function () {
 
-             if (currentFrame)
 
-                 return currentFrame.computed.getDependenciesCount();
 
-         },
 
-         isInitial: function() {
 
-             if (currentFrame)
 
-                 return currentFrame.isInitial;
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('computedContext', ko.computedContext);
 
- ko.exportSymbol('computedContext.getDependenciesCount', ko.computedContext.getDependenciesCount);
 
- ko.exportSymbol('computedContext.isInitial', ko.computedContext.isInitial);
 
- ko.exportSymbol('computedContext.isSleeping', ko.computedContext.isSleeping);
 
- ko.exportSymbol('ignoreDependencies', ko.ignoreDependencies = ko.dependencyDetection.ignore);
 
- ko.observable = function (initialValue) {
 
-     var _latestValue = initialValue;
 
-     function observable() {
 
-         if (arguments.length > 0) {
 
-             // Write
 
-             // Ignore writes if the value hasn't changed
 
-             if (observable.isDifferent(_latestValue, arguments[0])) {
 
-                 observable.valueWillMutate();
 
-                 _latestValue = arguments[0];
 
-                 if (DEBUG) observable._latestValue = _latestValue;
 
-                 observable.valueHasMutated();
 
-             }
 
-             return this; // Permits chained assignments
 
-         }
 
-         else {
 
-             // Read
 
-             ko.dependencyDetection.registerDependency(observable); // The caller only needs to be notified of changes if they did a "read" operation
 
-             return _latestValue;
 
-         }
 
-     }
 
-     ko.subscribable.call(observable);
 
-     ko.utils.setPrototypeOfOrExtend(observable, ko.observable['fn']);
 
-     if (DEBUG) observable._latestValue = _latestValue;
 
-     observable.peek = function() { return _latestValue };
 
-     observable.valueHasMutated = function () { observable["notifySubscribers"](_latestValue); }
 
-     observable.valueWillMutate = function () { observable["notifySubscribers"](_latestValue, "beforeChange"); }
 
-     ko.exportProperty(observable, 'peek', observable.peek);
 
-     ko.exportProperty(observable, "valueHasMutated", observable.valueHasMutated);
 
-     ko.exportProperty(observable, "valueWillMutate", observable.valueWillMutate);
 
-     return observable;
 
- }
 
- ko.observable['fn'] = {
 
-     "equalityComparer": valuesArePrimitiveAndEqual
 
- };
 
- var protoProperty = ko.observable.protoProperty = "__ko_proto__";
 
- ko.observable['fn'][protoProperty] = ko.observable;
 
- // Note that for browsers that don't support proto assignment, the
 
- // inheritance chain is created manually in the ko.observable constructor
 
- if (ko.utils.canSetPrototype) {
 
-     ko.utils.setPrototypeOf(ko.observable['fn'], ko.subscribable['fn']);
 
- }
 
- ko.hasPrototype = function(instance, prototype) {
 
-     if ((instance === null) || (instance === undefined) || (instance[protoProperty] === undefined)) return false;
 
-     if (instance[protoProperty] === prototype) return true;
 
-     return ko.hasPrototype(instance[protoProperty], prototype); // Walk the prototype chain
 
- };
 
- ko.isObservable = function (instance) {
 
-     return ko.hasPrototype(instance, ko.observable);
 
- }
 
- ko.isWriteableObservable = function (instance) {
 
-     // Observable
 
-     if ((typeof instance == "function") && instance[protoProperty] === ko.observable)
 
-         return true;
 
-     // Writeable dependent observable
 
-     if ((typeof instance == "function") && (instance[protoProperty] === ko.dependentObservable) && (instance.hasWriteFunction))
 
-         return true;
 
-     // Anything else
 
-     return false;
 
- }
 
- ko.exportSymbol('observable', ko.observable);
 
- ko.exportSymbol('isObservable', ko.isObservable);
 
- ko.exportSymbol('isWriteableObservable', ko.isWriteableObservable);
 
- ko.exportSymbol('isWritableObservable', ko.isWriteableObservable);
 
- ko.observableArray = function (initialValues) {
 
-     initialValues = initialValues || [];
 
-     if (typeof initialValues != 'object' || !('length' in initialValues))
 
-         throw new Error("The argument passed when initializing an observable array must be an array, or null, or undefined.");
 
-     var result = ko.observable(initialValues);
 
-     ko.utils.setPrototypeOfOrExtend(result, ko.observableArray['fn']);
 
-     return result.extend({'trackArrayChanges':true});
 
- };
 
- ko.observableArray['fn'] = {
 
-     'remove': function (valueOrPredicate) {
 
-         var underlyingArray = this.peek();
 
-         var removedValues = [];
 
-         var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
 
-         for (var i = 0; i < underlyingArray.length; i++) {
 
-             var value = underlyingArray[i];
 
-             if (predicate(value)) {
 
-                 if (removedValues.length === 0) {
 
-                     this.valueWillMutate();
 
-                 }
 
-                 removedValues.push(value);
 
-                 underlyingArray.splice(i, 1);
 
-                 i--;
 
-             }
 
-         }
 
-         if (removedValues.length) {
 
-             this.valueHasMutated();
 
-         }
 
-         return removedValues;
 
-     },
 
-     'removeAll': function (arrayOfValues) {
 
-         // If you passed zero args, we remove everything
 
-         if (arrayOfValues === undefined) {
 
-             var underlyingArray = this.peek();
 
-             var allValues = underlyingArray.slice(0);
 
-             this.valueWillMutate();
 
-             underlyingArray.splice(0, underlyingArray.length);
 
-             this.valueHasMutated();
 
-             return allValues;
 
-         }
 
-         // If you passed an arg, we interpret it as an array of entries to remove
 
-         if (!arrayOfValues)
 
-             return [];
 
-         return this['remove'](function (value) {
 
-             return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
 
-         });
 
-     },
 
-     'destroy': function (valueOrPredicate) {
 
-         var underlyingArray = this.peek();
 
-         var predicate = typeof valueOrPredicate == "function" && !ko.isObservable(valueOrPredicate) ? valueOrPredicate : function (value) { return value === valueOrPredicate; };
 
-         this.valueWillMutate();
 
-         for (var i = underlyingArray.length - 1; i >= 0; i--) {
 
-             var value = underlyingArray[i];
 
-             if (predicate(value))
 
-                 underlyingArray[i]["_destroy"] = true;
 
-         }
 
-         this.valueHasMutated();
 
-     },
 
-     'destroyAll': function (arrayOfValues) {
 
-         // If you passed zero args, we destroy everything
 
-         if (arrayOfValues === undefined)
 
-             return this['destroy'](function() { return true });
 
-         // If you passed an arg, we interpret it as an array of entries to destroy
 
-         if (!arrayOfValues)
 
-             return [];
 
-         return this['destroy'](function (value) {
 
-             return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
 
-         });
 
-     },
 
-     'indexOf': function (item) {
 
-         var underlyingArray = this();
 
-         return ko.utils.arrayIndexOf(underlyingArray, item);
 
-     },
 
-     'replace': function(oldItem, newItem) {
 
-         var index = this['indexOf'](oldItem);
 
-         if (index >= 0) {
 
-             this.valueWillMutate();
 
-             this.peek()[index] = newItem;
 
-             this.valueHasMutated();
 
-         }
 
-     }
 
- };
 
- // Populate ko.observableArray.fn with read/write functions from native arrays
 
- // Important: Do not add any additional functions here that may reasonably be used to *read* data from the array
 
- // because we'll eval them without causing subscriptions, so ko.computed output could end up getting stale
 
- ko.utils.arrayForEach(["pop", "push", "reverse", "shift", "sort", "splice", "unshift"], function (methodName) {
 
-     ko.observableArray['fn'][methodName] = function () {
 
-         // Use "peek" to avoid creating a subscription in any computed that we're executing in the context of
 
-         // (for consistency with mutating regular observables)
 
-         var underlyingArray = this.peek();
 
-         this.valueWillMutate();
 
-         this.cacheDiffForKnownOperation(underlyingArray, methodName, arguments);
 
-         var methodCallResult = underlyingArray[methodName].apply(underlyingArray, arguments);
 
-         this.valueHasMutated();
 
-         return methodCallResult;
 
-     };
 
- });
 
- // Populate ko.observableArray.fn with read-only functions from native arrays
 
- ko.utils.arrayForEach(["slice"], function (methodName) {
 
-     ko.observableArray['fn'][methodName] = function () {
 
-         var underlyingArray = this();
 
-         return underlyingArray[methodName].apply(underlyingArray, arguments);
 
-     };
 
- });
 
- // Note that for browsers that don't support proto assignment, the
 
- // inheritance chain is created manually in the ko.observableArray constructor
 
- if (ko.utils.canSetPrototype) {
 
-     ko.utils.setPrototypeOf(ko.observableArray['fn'], ko.observable['fn']);
 
- }
 
- ko.exportSymbol('observableArray', ko.observableArray);
 
- var arrayChangeEventName = 'arrayChange';
 
- ko.extenders['trackArrayChanges'] = function(target) {
 
-     // Only modify the target observable once
 
-     if (target.cacheDiffForKnownOperation) {
 
-         return;
 
-     }
 
-     var trackingChanges = false,
 
-         cachedDiff = null,
 
-         arrayChangeSubscription,
 
-         pendingNotifications = 0,
 
-         underlyingBeforeSubscriptionAddFunction = target.beforeSubscriptionAdd,
 
-         underlyingAfterSubscriptionRemoveFunction = target.afterSubscriptionRemove;
 
-     // Watch "subscribe" calls, and for array change events, ensure change tracking is enabled
 
-     target.beforeSubscriptionAdd = function (event) {
 
-         if (underlyingBeforeSubscriptionAddFunction)
 
-             underlyingBeforeSubscriptionAddFunction.call(target, event);
 
-         if (event === arrayChangeEventName) {
 
-             trackChanges();
 
-         }
 
-     };
 
-     // Watch "dispose" calls, and for array change events, ensure change tracking is disabled when all are disposed
 
-     target.afterSubscriptionRemove = function (event) {
 
-         if (underlyingAfterSubscriptionRemoveFunction)
 
-             underlyingAfterSubscriptionRemoveFunction.call(target, event);
 
-         if (event === arrayChangeEventName && !target.hasSubscriptionsForEvent(arrayChangeEventName)) {
 
-             arrayChangeSubscription.dispose();
 
-             trackingChanges = false;
 
-         }
 
-     };
 
-     function trackChanges() {
 
-         // Calling 'trackChanges' multiple times is the same as calling it once
 
-         if (trackingChanges) {
 
-             return;
 
-         }
 
-         trackingChanges = true;
 
-         // Intercept "notifySubscribers" to track how many times it was called.
 
-         var underlyingNotifySubscribersFunction = target['notifySubscribers'];
 
-         target['notifySubscribers'] = function(valueToNotify, event) {
 
-             if (!event || event === defaultEvent) {
 
-                 ++pendingNotifications;
 
-             }
 
-             return underlyingNotifySubscribersFunction.apply(this, arguments);
 
-         };
 
-         // Each time the array changes value, capture a clone so that on the next
 
-         // change it's possible to produce a diff
 
-         var previousContents = [].concat(target.peek() || []);
 
-         cachedDiff = null;
 
-         arrayChangeSubscription = target.subscribe(function(currentContents) {
 
-             // Make a copy of the current contents and ensure it's an array
 
-             currentContents = [].concat(currentContents || []);
 
-             // Compute the diff and issue notifications, but only if someone is listening
 
-             if (target.hasSubscriptionsForEvent(arrayChangeEventName)) {
 
-                 var changes = getChanges(previousContents, currentContents);
 
-             }
 
-             // Eliminate references to the old, removed items, so they can be GCed
 
-             previousContents = currentContents;
 
-             cachedDiff = null;
 
-             pendingNotifications = 0;
 
-             if (changes && changes.length) {
 
-                 target['notifySubscribers'](changes, arrayChangeEventName);
 
-             }
 
-         });
 
-     }
 
-     function getChanges(previousContents, currentContents) {
 
-         // We try to re-use cached diffs.
 
-         // The scenarios where pendingNotifications > 1 are when using rate-limiting or the Deferred Updates
 
-         // plugin, which without this check would not be compatible with arrayChange notifications. Normally,
 
-         // notifications are issued immediately so we wouldn't be queueing up more than one.
 
-         if (!cachedDiff || pendingNotifications > 1) {
 
-             cachedDiff = ko.utils.compareArrays(previousContents, currentContents, { 'sparse': true });
 
-         }
 
-         return cachedDiff;
 
-     }
 
-     target.cacheDiffForKnownOperation = function(rawArray, operationName, args) {
 
-         // Only run if we're currently tracking changes for this observable array
 
-         // and there aren't any pending deferred notifications.
 
-         if (!trackingChanges || pendingNotifications) {
 
-             return;
 
-         }
 
-         var diff = [],
 
-             arrayLength = rawArray.length,
 
-             argsLength = args.length,
 
-             offset = 0;
 
-         function pushDiff(status, value, index) {
 
-             return diff[diff.length] = { 'status': status, 'value': value, 'index': index };
 
-         }
 
-         switch (operationName) {
 
-             case 'push':
 
-                 offset = arrayLength;
 
-             case 'unshift':
 
-                 for (var index = 0; index < argsLength; index++) {
 
-                     pushDiff('added', args[index], offset + index);
 
-                 }
 
-                 break;
 
-             case 'pop':
 
-                 offset = arrayLength - 1;
 
-             case 'shift':
 
-                 if (arrayLength) {
 
-                     pushDiff('deleted', rawArray[offset], offset);
 
-                 }
 
-                 break;
 
-             case 'splice':
 
-                 // Negative start index means 'from end of array'. After that we clamp to [0...arrayLength].
 
-                 // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice
 
-                 var startIndex = Math.min(Math.max(0, args[0] < 0 ? arrayLength + args[0] : args[0]), arrayLength),
 
-                     endDeleteIndex = argsLength === 1 ? arrayLength : Math.min(startIndex + (args[1] || 0), arrayLength),
 
-                     endAddIndex = startIndex + argsLength - 2,
 
-                     endIndex = Math.max(endDeleteIndex, endAddIndex),
 
-                     additions = [], deletions = [];
 
-                 for (var index = startIndex, argsIndex = 2; index < endIndex; ++index, ++argsIndex) {
 
-                     if (index < endDeleteIndex)
 
-                         deletions.push(pushDiff('deleted', rawArray[index], index));
 
-                     if (index < endAddIndex)
 
-                         additions.push(pushDiff('added', args[argsIndex], index));
 
-                 }
 
-                 ko.utils.findMovesInArrayComparison(deletions, additions);
 
-                 break;
 
-             default:
 
-                 return;
 
-         }
 
-         cachedDiff = diff;
 
-     };
 
- };
 
- ko.computed = ko.dependentObservable = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget, options) {
 
-     var _latestValue,
 
-         _needsEvaluation = true,
 
-         _isBeingEvaluated = false,
 
-         _suppressDisposalUntilDisposeWhenReturnsFalse = false,
 
-         _isDisposed = false,
 
-         readFunction = evaluatorFunctionOrOptions,
 
-         pure = false,
 
-         isSleeping = false;
 
-     if (readFunction && typeof readFunction == "object") {
 
-         // Single-parameter syntax - everything is on this "options" param
 
-         options = readFunction;
 
-         readFunction = options["read"];
 
-     } else {
 
-         // Multi-parameter syntax - construct the options according to the params passed
 
-         options = options || {};
 
-         if (!readFunction)
 
-             readFunction = options["read"];
 
-     }
 
-     if (typeof readFunction != "function")
 
-         throw new Error("Pass a function that returns the value of the ko.computed");
 
-     function addDependencyTracking(id, target, trackingObj) {
 
-         if (pure && target === dependentObservable) {
 
-             throw Error("A 'pure' computed must not be called recursively");
 
-         }
 
-         dependencyTracking[id] = trackingObj;
 
-         trackingObj._order = _dependenciesCount++;
 
-         trackingObj._version = target.getVersion();
 
-     }
 
-     function haveDependenciesChanged() {
 
-         var id, dependency;
 
-         for (id in dependencyTracking) {
 
-             if (dependencyTracking.hasOwnProperty(id)) {
 
-                 dependency = dependencyTracking[id];
 
-                 if (dependency._target.hasChanged(dependency._version)) {
 
-                     return true;
 
-                 }
 
-             }
 
-         }
 
-     }
 
-     function disposeComputed() {
 
-         if (!isSleeping && dependencyTracking) {
 
-             ko.utils.objectForEach(dependencyTracking, function (id, dependency) {
 
-                 if (dependency.dispose)
 
-                     dependency.dispose();
 
-             });
 
-         }
 
-         dependencyTracking = null;
 
-         _dependenciesCount = 0;
 
-         _isDisposed = true;
 
-         _needsEvaluation = false;
 
-         isSleeping = false;
 
-     }
 
-     function evaluatePossiblyAsync() {
 
-         var throttleEvaluationTimeout = dependentObservable['throttleEvaluation'];
 
-         if (throttleEvaluationTimeout && throttleEvaluationTimeout >= 0) {
 
-             clearTimeout(evaluationTimeoutInstance);
 
-             evaluationTimeoutInstance = setTimeout(function () {
 
-                 evaluateImmediate(true /*notifyChange*/);
 
-             }, throttleEvaluationTimeout);
 
-         } else if (dependentObservable._evalRateLimited) {
 
-             dependentObservable._evalRateLimited();
 
-         } else {
 
-             evaluateImmediate(true /*notifyChange*/);
 
-         }
 
-     }
 
-     function evaluateImmediate(notifyChange) {
 
-         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;
 
-         }
 
-         // Do not evaluate (and possibly capture new dependencies) if disposed
 
-         if (_isDisposed) {
 
-             return;
 
-         }
 
-         if (disposeWhen && disposeWhen()) {
 
-             // See comment below about _suppressDisposalUntilDisposeWhenReturnsFalse
 
-             if (!_suppressDisposalUntilDisposeWhenReturnsFalse) {
 
-                 dispose();
 
-                 return;
 
-             }
 
-         } else {
 
-             // It just did return false, so we can stop suppressing now
 
-             _suppressDisposalUntilDisposeWhenReturnsFalse = false;
 
-         }
 
-         _isBeingEvaluated = true;
 
-         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 = dependencyTracking,
 
-                 disposalCount = _dependenciesCount,
 
-                 isInitial = pure ? undefined : !_dependenciesCount;   // If we're evaluating when there are no previous dependencies, it must be the first time
 
-             ko.dependencyDetection.begin({
 
-                 callback: function(subscribable, id) {
 
-                     if (!_isDisposed) {
 
-                         if (disposalCount && disposalCandidates[id]) {
 
-                             // Don't want to dispose this subscription, as it's still being used
 
-                             addDependencyTracking(id, subscribable, disposalCandidates[id]);
 
-                             delete disposalCandidates[id];
 
-                             --disposalCount;
 
-                         } else if (!dependencyTracking[id]) {
 
-                             // Brand new subscription - add it
 
-                             addDependencyTracking(id, subscribable, isSleeping ? { _target: subscribable } : subscribable.subscribe(evaluatePossiblyAsync));
 
-                         }
 
-                     }
 
-                 },
 
-                 computed: dependentObservable,
 
-                 isInitial: isInitial
 
-             });
 
-             dependencyTracking = {};
 
-             _dependenciesCount = 0;
 
-             try {
 
-                 var newValue = evaluatorFunctionTarget ? readFunction.call(evaluatorFunctionTarget) : readFunction();
 
-             } finally {
 
-                 ko.dependencyDetection.end();
 
-                 // For each subscription no longer being used, remove it from the active subscriptions list and dispose it
 
-                 if (disposalCount && !isSleeping) {
 
-                     ko.utils.objectForEach(disposalCandidates, function(id, toDispose) {
 
-                         if (toDispose.dispose)
 
-                             toDispose.dispose();
 
-                     });
 
-                 }
 
-                 _needsEvaluation = false;
 
-             }
 
-             if (dependentObservable.isDifferent(_latestValue, newValue)) {
 
-                 if (!isSleeping) {
 
-                     notify(_latestValue, "beforeChange");
 
-                 }
 
-                 _latestValue = newValue;
 
-                 if (DEBUG) dependentObservable._latestValue = _latestValue;
 
-                 if (isSleeping) {
 
-                     dependentObservable.updateVersion();
 
-                 } else if (notifyChange) {
 
-                     notify(_latestValue);
 
-                 }
 
-             }
 
-             if (isInitial) {
 
-                 notify(_latestValue, "awake");
 
-             }
 
-         } finally {
 
-             _isBeingEvaluated = false;
 
-         }
 
-         if (!_dependenciesCount)
 
-             dispose();
 
-     }
 
-     function dependentObservable() {
 
-         if (arguments.length > 0) {
 
-             if (typeof writeFunction === "function") {
 
-                 // Writing a value
 
-                 writeFunction.apply(evaluatorFunctionTarget, arguments);
 
-             } else {
 
-                 throw new Error("Cannot write a value to a ko.computed unless you specify a 'write' option. If you wish to read the current value, don't pass any parameters.");
 
-             }
 
-             return this; // Permits chained assignments
 
-         } else {
 
-             // Reading the value
 
-             ko.dependencyDetection.registerDependency(dependentObservable);
 
-             if (_needsEvaluation || (isSleeping && haveDependenciesChanged())) {
 
-                 evaluateImmediate();
 
-             }
 
-             return _latestValue;
 
-         }
 
-     }
 
-     function peek() {
 
-         // Peek won't re-evaluate, except while the computed is sleeping or to get the initial value when "deferEvaluation" is set.
 
-         if ((_needsEvaluation && !_dependenciesCount) || (isSleeping && haveDependenciesChanged())) {
 
-             evaluateImmediate();
 
-         }
 
-         return _latestValue;
 
-     }
 
-     function isActive() {
 
-         return _needsEvaluation || _dependenciesCount > 0;
 
-     }
 
-     function notify(value, event) {
 
-         dependentObservable["notifySubscribers"](value, event);
 
-     }
 
-     // By here, "options" is always non-null
 
-     var writeFunction = options["write"],
 
-         disposeWhenNodeIsRemoved = options["disposeWhenNodeIsRemoved"] || options.disposeWhenNodeIsRemoved || null,
 
-         disposeWhenOption = options["disposeWhen"] || options.disposeWhen,
 
-         disposeWhen = disposeWhenOption,
 
-         dispose = disposeComputed,
 
-         dependencyTracking = {},
 
-         _dependenciesCount = 0,
 
-         evaluationTimeoutInstance = null;
 
-     if (!evaluatorFunctionTarget)
 
-         evaluatorFunctionTarget = options["owner"];
 
-     ko.subscribable.call(dependentObservable);
 
-     ko.utils.setPrototypeOfOrExtend(dependentObservable, ko.dependentObservable['fn']);
 
-     dependentObservable.peek = peek;
 
-     dependentObservable.getDependenciesCount = function () { return _dependenciesCount; };
 
-     dependentObservable.hasWriteFunction = typeof writeFunction === "function";
 
-     dependentObservable.dispose = function () { dispose(); };
 
-     dependentObservable.isActive = isActive;
 
-     // Replace the limit function with one that delays evaluation as well.
 
-     var originalLimit = dependentObservable.limit;
 
-     dependentObservable.limit = function(limitFunction) {
 
-         originalLimit.call(dependentObservable, limitFunction);
 
-         dependentObservable._evalRateLimited = function() {
 
-             dependentObservable._rateLimitedBeforeChange(_latestValue);
 
-             _needsEvaluation = true;    // Mark as dirty
 
-             // Pass the observable to the rate-limit code, which will access it when
 
-             // it's time to do the notification.
 
-             dependentObservable._rateLimitedChange(dependentObservable);
 
-         }
 
-     };
 
-     if (options['pure']) {
 
-         pure = true;
 
-         isSleeping = true;     // Starts off sleeping; will awake on the first subscription
 
-         dependentObservable.beforeSubscriptionAdd = function (event) {
 
-             // If asleep, wake up the computed by subscribing to any dependencies.
 
-             if (!_isDisposed && isSleeping && event == 'change') {
 
-                 isSleeping = false;
 
-                 if (_needsEvaluation || haveDependenciesChanged()) {
 
-                     dependencyTracking = null;
 
-                     _dependenciesCount = 0;
 
-                     _needsEvaluation = true;
 
-                     evaluateImmediate();
 
-                 } else {
 
-                     // First put the dependencies in order
 
-                     var dependeciesOrder = [];
 
-                     ko.utils.objectForEach(dependencyTracking, function (id, dependency) {
 
-                         dependeciesOrder[dependency._order] = id;
 
-                     });
 
-                     // Next, subscribe to each one
 
-                     ko.utils.arrayForEach(dependeciesOrder, function(id, order) {
 
-                         var dependency = dependencyTracking[id],
 
-                             subscription = dependency._target.subscribe(evaluatePossiblyAsync);
 
-                         subscription._order = order;
 
-                         subscription._version = dependency._version;
 
-                         dependencyTracking[id] = subscription;
 
-                     });
 
-                 }
 
-                 if (!_isDisposed) {     // test since evaluating could trigger disposal
 
-                     notify(_latestValue, "awake");
 
-                 }
 
-             }
 
-         };
 
-         dependentObservable.afterSubscriptionRemove = function (event) {
 
-             if (!_isDisposed && event == 'change' && !dependentObservable.hasSubscriptionsForEvent('change')) {
 
-                 ko.utils.objectForEach(dependencyTracking, function (id, dependency) {
 
-                     if (dependency.dispose) {
 
-                         dependencyTracking[id] = {
 
-                             _target: dependency._target,
 
-                             _order: dependency._order,
 
-                             _version: dependency._version
 
-                         };
 
-                         dependency.dispose();
 
-                     }
 
-                 });
 
-                 isSleeping = true;
 
-                 notify(undefined, "asleep");
 
-             }
 
-         };
 
-         // Because a pure computed is not automatically updated while it is sleeping, we can't
 
-         // simply return the version number. Instead, we check if any of the dependencies have
 
-         // changed and conditionally re-evaluate the computed observable.
 
-         dependentObservable._originalGetVersion = dependentObservable.getVersion;
 
-         dependentObservable.getVersion = function () {
 
-             if (isSleeping && (_needsEvaluation || haveDependenciesChanged())) {
 
-                 evaluateImmediate();
 
-             }
 
-             return dependentObservable._originalGetVersion();
 
-         };
 
-     } else if (options['deferEvaluation']) {
 
-         // This will force a computed with deferEvaluation to evaluate when the first subscriptions is registered.
 
-         dependentObservable.beforeSubscriptionAdd = function (event) {
 
-             if (event == 'change' || event == 'beforeChange') {
 
-                 peek();
 
-             }
 
-         }
 
-     }
 
-     ko.exportProperty(dependentObservable, 'peek', dependentObservable.peek);
 
-     ko.exportProperty(dependentObservable, 'dispose', dependentObservable.dispose);
 
-     ko.exportProperty(dependentObservable, 'isActive', dependentObservable.isActive);
 
-     ko.exportProperty(dependentObservable, 'getDependenciesCount', dependentObservable.getDependenciesCount);
 
-     // Add a "disposeWhen" callback that, on each evaluation, disposes if the node was removed without using ko.removeNode.
 
-     if (disposeWhenNodeIsRemoved) {
 
-         // Since this computed is associated with a DOM node, and we don't want to dispose the computed
 
-         // until the DOM node is *removed* from the document (as opposed to never having been in the document),
 
-         // we'll prevent disposal until "disposeWhen" first returns false.
 
-         _suppressDisposalUntilDisposeWhenReturnsFalse = true;
 
-         // Only watch for the node's disposal if the value really is a node. It might not be,
 
-         // e.g., { disposeWhenNodeIsRemoved: true } can be used to opt into the "only dispose
 
-         // after first false result" behaviour even if there's no specific node to watch. This
 
-         // technique is intended for KO's internal use only and shouldn't be documented or used
 
-         // by application code, as it's likely to change in a future version of KO.
 
-         if (disposeWhenNodeIsRemoved.nodeType) {
 
-             disposeWhen = function () {
 
-                 return !ko.utils.domNodeIsAttachedToDocument(disposeWhenNodeIsRemoved) || (disposeWhenOption && disposeWhenOption());
 
-             };
 
-         }
 
-     }
 
-     // Evaluate, unless sleeping or deferEvaluation is true
 
-     if (!isSleeping && !options['deferEvaluation'])
 
-         evaluateImmediate();
 
-     // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is
 
-     // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).
 
-     if (disposeWhenNodeIsRemoved && isActive() && disposeWhenNodeIsRemoved.nodeType) {
 
-         dispose = function() {
 
-             ko.utils.domNodeDisposal.removeDisposeCallback(disposeWhenNodeIsRemoved, dispose);
 
-             disposeComputed();
 
-         };
 
-         ko.utils.domNodeDisposal.addDisposeCallback(disposeWhenNodeIsRemoved, dispose);
 
-     }
 
-     return dependentObservable;
 
- };
 
- ko.isComputed = function(instance) {
 
-     return ko.hasPrototype(instance, ko.dependentObservable);
 
- };
 
- var protoProp = ko.observable.protoProperty; // == "__ko_proto__"
 
- ko.dependentObservable[protoProp] = ko.observable;
 
- ko.dependentObservable['fn'] = {
 
-     "equalityComparer": valuesArePrimitiveAndEqual
 
- };
 
- ko.dependentObservable['fn'][protoProp] = ko.dependentObservable;
 
- // Note that for browsers that don't support proto assignment, the
 
- // inheritance chain is created manually in the ko.dependentObservable constructor
 
- if (ko.utils.canSetPrototype) {
 
-     ko.utils.setPrototypeOf(ko.dependentObservable['fn'], ko.subscribable['fn']);
 
- }
 
- ko.exportSymbol('dependentObservable', ko.dependentObservable);
 
- ko.exportSymbol('computed', ko.dependentObservable); // Make "ko.computed" an alias for "ko.dependentObservable"
 
- ko.exportSymbol('isComputed', ko.isComputed);
 
- ko.pureComputed = function (evaluatorFunctionOrOptions, evaluatorFunctionTarget) {
 
-     if (typeof evaluatorFunctionOrOptions === 'function') {
 
-         return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget, {'pure':true});
 
-     } else {
 
-         evaluatorFunctionOrOptions = ko.utils.extend({}, evaluatorFunctionOrOptions);   // make a copy of the parameter object
 
-         evaluatorFunctionOrOptions['pure'] = true;
 
-         return ko.computed(evaluatorFunctionOrOptions, evaluatorFunctionTarget);
 
-     }
 
- }
 
- ko.exportSymbol('pureComputed', ko.pureComputed);
 
- (function() {
 
-     var maxNestedObservableDepth = 10; // Escape the (unlikely) pathalogical case where an observable's current value is itself (or similar reference cycle)
 
-     ko.toJS = function(rootObject) {
 
-         if (arguments.length == 0)
 
-             throw new Error("When calling ko.toJS, pass the object you want to convert.");
 
-         // We just unwrap everything at every level in the object graph
 
-         return mapJsObjectGraph(rootObject, function(valueToMap) {
 
-             // Loop because an observable's value might in turn be another observable wrapper
 
-             for (var i = 0; ko.isObservable(valueToMap) && (i < maxNestedObservableDepth); i++)
 
-                 valueToMap = valueToMap();
 
-             return valueToMap;
 
-         });
 
-     };
 
-     ko.toJSON = function(rootObject, replacer, space) {     // replacer and space are optional
 
-         var plainJavaScriptObject = ko.toJS(rootObject);
 
-         return ko.utils.stringifyJson(plainJavaScriptObject, replacer, space);
 
-     };
 
-     function mapJsObjectGraph(rootObject, mapInputCallback, visitedObjects) {
 
-         visitedObjects = visitedObjects || new objectLookup();
 
-         rootObject = mapInputCallback(rootObject);
 
-         var canHaveProperties = (typeof rootObject == "object") && (rootObject !== null) && (rootObject !== undefined) && (!(rootObject instanceof Date)) && (!(rootObject instanceof String)) && (!(rootObject instanceof Number)) && (!(rootObject instanceof Boolean));
 
-         if (!canHaveProperties)
 
-             return rootObject;
 
-         var outputProperties = rootObject instanceof Array ? [] : {};
 
-         visitedObjects.save(rootObject, outputProperties);
 
-         visitPropertiesOrArrayEntries(rootObject, function(indexer) {
 
-             var propertyValue = mapInputCallback(rootObject[indexer]);
 
-             switch (typeof propertyValue) {
 
-                 case "boolean":
 
-                 case "number":
 
-                 case "string":
 
-                 case "function":
 
-                     outputProperties[indexer] = propertyValue;
 
-                     break;
 
-                 case "object":
 
-                 case "undefined":
 
-                     var previouslyMappedValue = visitedObjects.get(propertyValue);
 
-                     outputProperties[indexer] = (previouslyMappedValue !== undefined)
 
-                         ? previouslyMappedValue
 
-                         : mapJsObjectGraph(propertyValue, mapInputCallback, visitedObjects);
 
-                     break;
 
-             }
 
-         });
 
-         return outputProperties;
 
-     }
 
-     function visitPropertiesOrArrayEntries(rootObject, visitorCallback) {
 
-         if (rootObject instanceof Array) {
 
-             for (var i = 0; i < rootObject.length; i++)
 
-                 visitorCallback(i);
 
-             // For arrays, also respect toJSON property for custom mappings (fixes #278)
 
-             if (typeof rootObject['toJSON'] == 'function')
 
-                 visitorCallback('toJSON');
 
-         } else {
 
-             for (var propertyName in rootObject) {
 
-                 visitorCallback(propertyName);
 
-             }
 
-         }
 
-     };
 
-     function objectLookup() {
 
-         this.keys = [];
 
-         this.values = [];
 
-     };
 
-     objectLookup.prototype = {
 
-         constructor: objectLookup,
 
-         save: function(key, value) {
 
-             var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
 
-             if (existingIndex >= 0)
 
-                 this.values[existingIndex] = value;
 
-             else {
 
-                 this.keys.push(key);
 
-                 this.values.push(value);
 
-             }
 
-         },
 
-         get: function(key) {
 
-             var existingIndex = ko.utils.arrayIndexOf(this.keys, key);
 
-             return (existingIndex >= 0) ? this.values[existingIndex] : undefined;
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('toJS', ko.toJS);
 
- ko.exportSymbol('toJSON', ko.toJSON);
 
- (function () {
 
-     var hasDomDataExpandoProperty = '__ko__hasDomDataOptionValue__';
 
-     // Normally, SELECT elements and their OPTIONs can only take value of type 'string' (because the values
 
-     // are stored on DOM attributes). ko.selectExtensions provides a way for SELECTs/OPTIONs to have values
 
-     // that are arbitrary objects. This is very convenient when implementing things like cascading dropdowns.
 
-     ko.selectExtensions = {
 
-         readValue : function(element) {
 
-             switch (ko.utils.tagNameLower(element)) {
 
-                 case 'option':
 
-                     if (element[hasDomDataExpandoProperty] === true)
 
-                         return ko.utils.domData.get(element, ko.bindingHandlers.options.optionValueDomDataKey);
 
-                     return ko.utils.ieVersion <= 7
 
-                         ? (element.getAttributeNode('value') && element.getAttributeNode('value').specified ? element.value : element.text)
 
-                         : element.value;
 
-                 case 'select':
 
-                     return element.selectedIndex >= 0 ? ko.selectExtensions.readValue(element.options[element.selectedIndex]) : undefined;
 
-                 default:
 
-                     return element.value;
 
-             }
 
-         },
 
-         writeValue: function(element, value, allowUnset) {
 
-             switch (ko.utils.tagNameLower(element)) {
 
-                 case 'option':
 
-                     switch(typeof value) {
 
-                         case "string":
 
-                             ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, undefined);
 
-                             if (hasDomDataExpandoProperty in element) { // IE <= 8 throws errors if you delete non-existent properties from a DOM node
 
-                                 delete element[hasDomDataExpandoProperty];
 
-                             }
 
-                             element.value = value;
 
-                             break;
 
-                         default:
 
-                             // Store arbitrary object using DomData
 
-                             ko.utils.domData.set(element, ko.bindingHandlers.options.optionValueDomDataKey, value);
 
-                             element[hasDomDataExpandoProperty] = true;
 
-                             // Special treatment of numbers is just for backward compatibility. KO 1.2.1 wrote numerical values to element.value.
 
-                             element.value = typeof value === "number" ? value : "";
 
-                             break;
 
-                     }
 
-                     break;
 
-                 case 'select':
 
-                     if (value === "" || value === null)       // A blank string or null value will select the caption
 
-                         value = undefined;
 
-                     var selection = -1;
 
-                     for (var i = 0, n = element.options.length, optionValue; i < n; ++i) {
 
-                         optionValue = ko.selectExtensions.readValue(element.options[i]);
 
-                         // Include special check to handle selecting a caption with a blank string value
 
-                         if (optionValue == value || (optionValue == "" && value === undefined)) {
 
-                             selection = i;
 
-                             break;
 
-                         }
 
-                     }
 
-                     if (allowUnset || selection >= 0 || (value === undefined && element.size > 1)) {
 
-                         element.selectedIndex = selection;
 
-                     }
 
-                     break;
 
-                 default:
 
-                     if ((value === null) || (value === undefined))
 
-                         value = "";
 
-                     element.value = value;
 
-                     break;
 
-             }
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('selectExtensions', ko.selectExtensions);
 
- ko.exportSymbol('selectExtensions.readValue', ko.selectExtensions.readValue);
 
- ko.exportSymbol('selectExtensions.writeValue', ko.selectExtensions.writeValue);
 
- ko.expressionRewriting = (function () {
 
-     var javaScriptReservedWords = ["true", "false", "null", "undefined"];
 
-     // Matches something that can be assigned to--either an isolated identifier or something ending with a property accessor
 
-     // This is designed to be simple and avoid false negatives, but could produce false positives (e.g., a+b.c).
 
-     // This also will not properly handle nested brackets (e.g., obj1[obj2['prop']]; see #911).
 
-     var javaScriptAssignmentTarget = /^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i;
 
-     function getWriteableValue(expression) {
 
-         if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)
 
-             return false;
 
-         var match = expression.match(javaScriptAssignmentTarget);
 
-         return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;
 
-     }
 
-     // The following regular expressions will be used to split an object-literal string into tokens
 
-         // These two match strings, either with double quotes or single quotes
 
-     var stringDouble = '"(?:[^"\\\\]|\\\\.)*"',
 
-         stringSingle = "'(?:[^'\\\\]|\\\\.)*'",
 
-         // Matches a regular expression (text enclosed by slashes), but will also match sets of divisions
 
-         // as a regular expression (this is handled by the parsing loop below).
 
-         stringRegexp = '/(?:[^/\\\\]|\\\\.)*/\w*',
 
-         // These characters have special meaning to the parser and must not appear in the middle of a
 
-         // token, except as part of a string.
 
-         specials = ',"\'{}()/:[\\]',
 
-         // Match text (at least two characters) that does not contain any of the above special characters,
 
-         // although some of the special characters are allowed to start it (all but the colon and comma).
 
-         // The text can contain spaces, but leading or trailing spaces are skipped.
 
-         everyThingElse = '[^\\s:,/][^' + specials + ']*[^\\s' + specials + ']',
 
-         // Match any non-space character not matched already. This will match colons and commas, since they're
 
-         // not matched by "everyThingElse", but will also match any other single character that wasn't already
 
-         // matched (for example: in "a: 1, b: 2", each of the non-space characters will be matched by oneNotSpace).
 
-         oneNotSpace = '[^\\s]',
 
-         // Create the actual regular expression by or-ing the above strings. The order is important.
 
-         bindingToken = RegExp(stringDouble + '|' + stringSingle + '|' + stringRegexp + '|' + everyThingElse + '|' + oneNotSpace, 'g'),
 
-         // Match end of previous token to determine whether a slash is a division or regex.
 
-         divisionLookBehind = /[\])"'A-Za-z0-9_$]+$/,
 
-         keywordRegexLookBehind = {'in':1,'return':1,'typeof':1};
 
-     function parseObjectLiteral(objectLiteralString) {
 
-         // Trim leading and trailing spaces from the string
 
-         var str = ko.utils.stringTrim(objectLiteralString);
 
-         // Trim braces '{' surrounding the whole object literal
 
-         if (str.charCodeAt(0) === 123) str = str.slice(1, -1);
 
-         // Split into tokens
 
-         var result = [], toks = str.match(bindingToken), key, values = [], depth = 0;
 
-         if (toks) {
 
-             // Append a comma so that we don't need a separate code block to deal with the last item
 
-             toks.push(',');
 
-             for (var i = 0, tok; tok = toks[i]; ++i) {
 
-                 var c = tok.charCodeAt(0);
 
-                 // A comma signals the end of a key/value pair if depth is zero
 
-                 if (c === 44) { // ","
 
-                     if (depth <= 0) {
 
-                         result.push((key && values.length) ? {key: key, value: values.join('')} : {'unknown': key || values.join('')});
 
-                         key = depth = 0;
 
-                         values = [];
 
-                         continue;
 
-                     }
 
-                 // Simply skip the colon that separates the name and value
 
-                 } else if (c === 58) { // ":"
 
-                     if (!depth && !key && values.length === 1) {
 
-                         key = values.pop();
 
-                         continue;
 
-                     }
 
-                 // A set of slashes is initially matched as a regular expression, but could be division
 
-                 } else if (c === 47 && i && tok.length > 1) {  // "/"
 
-                     // Look at the end of the previous token to determine if the slash is actually division
 
-                     var match = toks[i-1].match(divisionLookBehind);
 
-                     if (match && !keywordRegexLookBehind[match[0]]) {
 
-                         // The slash is actually a division punctuator; re-parse the remainder of the string (not including the slash)
 
-                         str = str.substr(str.indexOf(tok) + 1);
 
-                         toks = str.match(bindingToken);
 
-                         toks.push(',');
 
-                         i = -1;
 
-                         // Continue with just the slash
 
-                         tok = '/';
 
-                     }
 
-                 // Increment depth for parentheses, braces, and brackets so that interior commas are ignored
 
-                 } else if (c === 40 || c === 123 || c === 91) { // '(', '{', '['
 
-                     ++depth;
 
-                 } else if (c === 41 || c === 125 || c === 93) { // ')', '}', ']'
 
-                     --depth;
 
-                 // The key will be the first token; if it's a string, trim the quotes
 
-                 } else if (!key && !values.length && (c === 34 || c === 39)) { // '"', "'"
 
-                     tok = tok.slice(1, -1);
 
-                 }
 
-                 values.push(tok);
 
-             }
 
-         }
 
-         return result;
 
-     }
 
-     // Two-way bindings include a write function that allow the handler to update the value even if it's not an observable.
 
-     var twoWayBindings = {};
 
-     function preProcessBindings(bindingsStringOrKeyValueArray, bindingOptions) {
 
-         bindingOptions = bindingOptions || {};
 
-         function processKeyValue(key, val) {
 
-             var writableVal;
 
-             function callPreprocessHook(obj) {
 
-                 return (obj && obj['preprocess']) ? (val = obj['preprocess'](val, key, processKeyValue)) : true;
 
-             }
 
-             if (!bindingParams) {
 
-                 if (!callPreprocessHook(ko['getBindingHandler'](key)))
 
-                     return;
 
-                 if (twoWayBindings[key] && (writableVal = getWriteableValue(val))) {
 
-                     // For two-way bindings, provide a write method in case the value
 
-                     // isn't a writable observable.
 
-                     propertyAccessorResultStrings.push("'" + key + "':function(_z){" + writableVal + "=_z}");
 
-                 }
 
-             }
 
-             // Values are wrapped in a function so that each value can be accessed independently
 
-             if (makeValueAccessors) {
 
-                 val = 'function(){return ' + val + ' }';
 
-             }
 
-             resultStrings.push("'" + key + "':" + val);
 
-         }
 
-         var resultStrings = [],
 
-             propertyAccessorResultStrings = [],
 
-             makeValueAccessors = bindingOptions['valueAccessors'],
 
-             bindingParams = bindingOptions['bindingParams'],
 
-             keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
 
-                 parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;
 
-         ko.utils.arrayForEach(keyValueArray, function(keyValue) {
 
-             processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value);
 
-         });
 
-         if (propertyAccessorResultStrings.length)
 
-             processKeyValue('_ko_property_writers', "{" + propertyAccessorResultStrings.join(",") + " }");
 
-         return resultStrings.join(",");
 
-     }
 
-     return {
 
-         bindingRewriteValidators: [],
 
-         twoWayBindings: twoWayBindings,
 
-         parseObjectLiteral: parseObjectLiteral,
 
-         preProcessBindings: preProcessBindings,
 
-         keyValueArrayContainsKey: function(keyValueArray, key) {
 
-             for (var i = 0; i < keyValueArray.length; i++)
 
-                 if (keyValueArray[i]['key'] == key)
 
-                     return true;
 
-             return false;
 
-         },
 
-         // Internal, private KO utility for updating model properties from within bindings
 
-         // property:            If the property being updated is (or might be) an observable, pass it here
 
-         //                      If it turns out to be a writable observable, it will be written to directly
 
-         // allBindings:         An object with a get method to retrieve bindings in the current execution context.
 
-         //                      This will be searched for a '_ko_property_writers' property in case you're writing to a non-observable
 
-         // key:                 The key identifying the property to be written. Example: for { hasFocus: myValue }, write to 'myValue' by specifying the key 'hasFocus'
 
-         // value:               The value to be written
 
-         // checkIfDifferent:    If true, and if the property being written is a writable observable, the value will only be written if
 
-         //                      it is !== existing value on that writable observable
 
-         writeValueToProperty: function(property, allBindings, key, value, checkIfDifferent) {
 
-             if (!property || !ko.isObservable(property)) {
 
-                 var propWriters = allBindings.get('_ko_property_writers');
 
-                 if (propWriters && propWriters[key])
 
-                     propWriters[key](value);
 
-             } else if (ko.isWriteableObservable(property) && (!checkIfDifferent || property.peek() !== value)) {
 
-                 property(value);
 
-             }
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('expressionRewriting', ko.expressionRewriting);
 
- ko.exportSymbol('expressionRewriting.bindingRewriteValidators', ko.expressionRewriting.bindingRewriteValidators);
 
- ko.exportSymbol('expressionRewriting.parseObjectLiteral', ko.expressionRewriting.parseObjectLiteral);
 
- ko.exportSymbol('expressionRewriting.preProcessBindings', ko.expressionRewriting.preProcessBindings);
 
- // Making bindings explicitly declare themselves as "two way" isn't ideal in the long term (it would be better if
 
- // all bindings could use an official 'property writer' API without needing to declare that they might). However,
 
- // since this is not, and has never been, a public API (_ko_property_writers was never documented), it's acceptable
 
- // as an internal implementation detail in the short term.
 
- // For those developers who rely on _ko_property_writers in their custom bindings, we expose _twoWayBindings as an
 
- // undocumented feature that makes it relatively easy to upgrade to KO 3.0. However, this is still not an official
 
- // public API, and we reserve the right to remove it at any time if we create a real public property writers API.
 
- ko.exportSymbol('expressionRewriting._twoWayBindings', ko.expressionRewriting.twoWayBindings);
 
- // For backward compatibility, define the following aliases. (Previously, these function names were misleading because
 
- // they referred to JSON specifically, even though they actually work with arbitrary JavaScript object literal expressions.)
 
- ko.exportSymbol('jsonExpressionRewriting', ko.expressionRewriting);
 
- ko.exportSymbol('jsonExpressionRewriting.insertPropertyAccessorsIntoJson', ko.expressionRewriting.preProcessBindings);
 
- (function() {
 
-     // "Virtual elements" is an abstraction on top of the usual DOM API which understands the notion that comment nodes
 
-     // may be used to represent hierarchy (in addition to the DOM's natural hierarchy).
 
-     // If you call the DOM-manipulating functions on ko.virtualElements, you will be able to read and write the state
 
-     // of that virtual hierarchy
 
-     //
 
-     // The point of all this is to support containerless templates (e.g., <!-- ko foreach:someCollection -->blah<!-- /ko -->)
 
-     // without having to scatter special cases all over the binding and templating code.
 
-     // IE 9 cannot reliably read the "nodeValue" property of a comment node (see https://github.com/SteveSanderson/knockout/issues/186)
 
-     // but it does give them a nonstandard alternative property called "text" that it can read reliably. Other browsers don't have that property.
 
-     // So, use node.text where available, and node.nodeValue elsewhere
 
-     var commentNodesHaveTextProperty = document && document.createComment("test").text === "<!--test-->";
 
-     var startCommentRegex = commentNodesHaveTextProperty ? /^<!--\s*ko(?:\s+([\s\S]+))?\s*-->$/ : /^\s*ko(?:\s+([\s\S]+))?\s*$/;
 
-     var endCommentRegex =   commentNodesHaveTextProperty ? /^<!--\s*\/ko\s*-->$/ : /^\s*\/ko\s*$/;
 
-     var htmlTagsWithOptionallyClosingChildren = { 'ul': true, 'ol': true };
 
-     function isStartComment(node) {
 
-         return (node.nodeType == 8) && startCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
 
-     }
 
-     function isEndComment(node) {
 
-         return (node.nodeType == 8) && endCommentRegex.test(commentNodesHaveTextProperty ? node.text : node.nodeValue);
 
-     }
 
-     function getVirtualChildren(startComment, allowUnbalanced) {
 
-         var currentNode = startComment;
 
-         var depth = 1;
 
-         var children = [];
 
-         while (currentNode = currentNode.nextSibling) {
 
-             if (isEndComment(currentNode)) {
 
-                 depth--;
 
-                 if (depth === 0)
 
-                     return children;
 
-             }
 
-             children.push(currentNode);
 
-             if (isStartComment(currentNode))
 
-                 depth++;
 
-         }
 
-         if (!allowUnbalanced)
 
-             throw new Error("Cannot find closing comment tag to match: " + startComment.nodeValue);
 
-         return null;
 
-     }
 
-     function getMatchingEndComment(startComment, allowUnbalanced) {
 
-         var allVirtualChildren = getVirtualChildren(startComment, allowUnbalanced);
 
-         if (allVirtualChildren) {
 
-             if (allVirtualChildren.length > 0)
 
-                 return allVirtualChildren[allVirtualChildren.length - 1].nextSibling;
 
-             return startComment.nextSibling;
 
-         } else
 
-             return null; // Must have no matching end comment, and allowUnbalanced is true
 
-     }
 
-     function getUnbalancedChildTags(node) {
 
-         // e.g., from <div>OK</div><!-- ko blah --><span>Another</span>, returns: <!-- ko blah --><span>Another</span>
 
-         //       from <div>OK</div><!-- /ko --><!-- /ko -->,             returns: <!-- /ko --><!-- /ko -->
 
-         var childNode = node.firstChild, captureRemaining = null;
 
-         if (childNode) {
 
-             do {
 
-                 if (captureRemaining)                   // We already hit an unbalanced node and are now just scooping up all subsequent nodes
 
-                     captureRemaining.push(childNode);
 
-                 else if (isStartComment(childNode)) {
 
-                     var matchingEndComment = getMatchingEndComment(childNode, /* allowUnbalanced: */ true);
 
-                     if (matchingEndComment)             // It's a balanced tag, so skip immediately to the end of this virtual set
 
-                         childNode = matchingEndComment;
 
-                     else
 
-                         captureRemaining = [childNode]; // It's unbalanced, so start capturing from this point
 
-                 } else if (isEndComment(childNode)) {
 
-                     captureRemaining = [childNode];     // It's unbalanced (if it wasn't, we'd have skipped over it already), so start capturing
 
-                 }
 
-             } while (childNode = childNode.nextSibling);
 
-         }
 
-         return captureRemaining;
 
-     }
 
-     ko.virtualElements = {
 
-         allowedBindings: {},
 
-         childNodes: function(node) {
 
-             return isStartComment(node) ? getVirtualChildren(node) : node.childNodes;
 
-         },
 
-         emptyNode: function(node) {
 
-             if (!isStartComment(node))
 
-                 ko.utils.emptyDomNode(node);
 
-             else {
 
-                 var virtualChildren = ko.virtualElements.childNodes(node);
 
-                 for (var i = 0, j = virtualChildren.length; i < j; i++)
 
-                     ko.removeNode(virtualChildren[i]);
 
-             }
 
-         },
 
-         setDomNodeChildren: function(node, childNodes) {
 
-             if (!isStartComment(node))
 
-                 ko.utils.setDomNodeChildren(node, childNodes);
 
-             else {
 
-                 ko.virtualElements.emptyNode(node);
 
-                 var endCommentNode = node.nextSibling; // Must be the next sibling, as we just emptied the children
 
-                 for (var i = 0, j = childNodes.length; i < j; i++)
 
-                     endCommentNode.parentNode.insertBefore(childNodes[i], endCommentNode);
 
-             }
 
-         },
 
-         prepend: function(containerNode, nodeToPrepend) {
 
-             if (!isStartComment(containerNode)) {
 
-                 if (containerNode.firstChild)
 
-                     containerNode.insertBefore(nodeToPrepend, containerNode.firstChild);
 
-                 else
 
-                     containerNode.appendChild(nodeToPrepend);
 
-             } else {
 
-                 // Start comments must always have a parent and at least one following sibling (the end comment)
 
-                 containerNode.parentNode.insertBefore(nodeToPrepend, containerNode.nextSibling);
 
-             }
 
-         },
 
-         insertAfter: function(containerNode, nodeToInsert, insertAfterNode) {
 
-             if (!insertAfterNode) {
 
-                 ko.virtualElements.prepend(containerNode, nodeToInsert);
 
-             } else if (!isStartComment(containerNode)) {
 
-                 // Insert after insertion point
 
-                 if (insertAfterNode.nextSibling)
 
-                     containerNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
 
-                 else
 
-                     containerNode.appendChild(nodeToInsert);
 
-             } else {
 
-                 // Children of start comments must always have a parent and at least one following sibling (the end comment)
 
-                 containerNode.parentNode.insertBefore(nodeToInsert, insertAfterNode.nextSibling);
 
-             }
 
-         },
 
-         firstChild: function(node) {
 
-             if (!isStartComment(node))
 
-                 return node.firstChild;
 
-             if (!node.nextSibling || isEndComment(node.nextSibling))
 
-                 return null;
 
-             return node.nextSibling;
 
-         },
 
-         nextSibling: function(node) {
 
-             if (isStartComment(node))
 
-                 node = getMatchingEndComment(node);
 
-             if (node.nextSibling && isEndComment(node.nextSibling))
 
-                 return null;
 
-             return node.nextSibling;
 
-         },
 
-         hasBindingValue: isStartComment,
 
-         virtualNodeBindingValue: function(node) {
 
-             var regexMatch = (commentNodesHaveTextProperty ? node.text : node.nodeValue).match(startCommentRegex);
 
-             return regexMatch ? regexMatch[1] : null;
 
-         },
 
-         normaliseVirtualElementDomStructure: function(elementVerified) {
 
-             // Workaround for https://github.com/SteveSanderson/knockout/issues/155
 
-             // (IE <= 8 or IE 9 quirks mode parses your HTML weirdly, treating closing </li> tags as if they don't exist, thereby moving comment nodes
 
-             // that are direct descendants of <ul> into the preceding <li>)
 
-             if (!htmlTagsWithOptionallyClosingChildren[ko.utils.tagNameLower(elementVerified)])
 
-                 return;
 
-             // Scan immediate children to see if they contain unbalanced comment tags. If they do, those comment tags
 
-             // must be intended to appear *after* that child, so move them there.
 
-             var childNode = elementVerified.firstChild;
 
-             if (childNode) {
 
-                 do {
 
-                     if (childNode.nodeType === 1) {
 
-                         var unbalancedTags = getUnbalancedChildTags(childNode);
 
-                         if (unbalancedTags) {
 
-                             // Fix up the DOM by moving the unbalanced tags to where they most likely were intended to be placed - *after* the child
 
-                             var nodeToInsertBefore = childNode.nextSibling;
 
-                             for (var i = 0; i < unbalancedTags.length; i++) {
 
-                                 if (nodeToInsertBefore)
 
-                                     elementVerified.insertBefore(unbalancedTags[i], nodeToInsertBefore);
 
-                                 else
 
-                                     elementVerified.appendChild(unbalancedTags[i]);
 
-                             }
 
-                         }
 
-                     }
 
-                 } while (childNode = childNode.nextSibling);
 
-             }
 
-         }
 
-     };
 
- })();
 
- ko.exportSymbol('virtualElements', ko.virtualElements);
 
- ko.exportSymbol('virtualElements.allowedBindings', ko.virtualElements.allowedBindings);
 
- ko.exportSymbol('virtualElements.emptyNode', ko.virtualElements.emptyNode);
 
- //ko.exportSymbol('virtualElements.firstChild', ko.virtualElements.firstChild);     // firstChild is not minified
 
- ko.exportSymbol('virtualElements.insertAfter', ko.virtualElements.insertAfter);
 
- //ko.exportSymbol('virtualElements.nextSibling', ko.virtualElements.nextSibling);   // nextSibling is not minified
 
- ko.exportSymbol('virtualElements.prepend', ko.virtualElements.prepend);
 
- ko.exportSymbol('virtualElements.setDomNodeChildren', ko.virtualElements.setDomNodeChildren);
 
- (function() {
 
-     var defaultBindingAttributeName = "data-bind";
 
-     ko.bindingProvider = function() {
 
-         this.bindingCache = {};
 
-     };
 
-     ko.utils.extend(ko.bindingProvider.prototype, {
 
-         'nodeHasBindings': function(node) {
 
-             switch (node.nodeType) {
 
-                 case 1: // Element
 
-                     return node.getAttribute(defaultBindingAttributeName) != null
 
-                         || ko.components['getComponentNameForNode'](node);
 
-                 case 8: // Comment node
 
-                     return ko.virtualElements.hasBindingValue(node);
 
-                 default: return false;
 
-             }
 
-         },
 
-         'getBindings': function(node, bindingContext) {
 
-             var bindingsString = this['getBindingsString'](node, bindingContext),
 
-                 parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node) : null;
 
-             return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ false);
 
-         },
 
-         'getBindingAccessors': function(node, bindingContext) {
 
-             var bindingsString = this['getBindingsString'](node, bindingContext),
 
-                 parsedBindings = bindingsString ? this['parseBindingsString'](bindingsString, bindingContext, node, { 'valueAccessors': true }) : null;
 
-             return ko.components.addBindingsForCustomElement(parsedBindings, node, bindingContext, /* valueAccessors */ true);
 
-         },
 
-         // The following function is only used internally by this default provider.
 
-         // It's not part of the interface definition for a general binding provider.
 
-         'getBindingsString': function(node, bindingContext) {
 
-             switch (node.nodeType) {
 
-                 case 1: return node.getAttribute(defaultBindingAttributeName);   // Element
 
-                 case 8: return ko.virtualElements.virtualNodeBindingValue(node); // Comment node
 
-                 default: return null;
 
-             }
 
-         },
 
-         // The following function is only used internally by this default provider.
 
-         // It's not part of the interface definition for a general binding provider.
 
-         'parseBindingsString': function(bindingsString, bindingContext, node, options) {
 
-             try {
 
-                 var bindingFunction = createBindingsStringEvaluatorViaCache(bindingsString, this.bindingCache, options);
 
-                 return bindingFunction(bindingContext, node);
 
-             } catch (ex) {
 
-                 ex.message = "Unable to parse bindings.\nBindings value: " + bindingsString + "\nMessage: " + ex.message;
 
-                 throw ex;
 
-             }
 
-         }
 
-     });
 
-     ko.bindingProvider['instance'] = new ko.bindingProvider();
 
-     function createBindingsStringEvaluatorViaCache(bindingsString, cache, options) {
 
-         var cacheKey = bindingsString + (options && options['valueAccessors'] || '');
 
-         return cache[cacheKey]
 
-             || (cache[cacheKey] = createBindingsStringEvaluator(bindingsString, options));
 
-     }
 
-     function createBindingsStringEvaluator(bindingsString, options) {
 
-         // Build the source for a function that evaluates "expression"
 
-         // For each scope variable, add an extra level of "with" nesting
 
-         // Example result: with(sc1) { with(sc0) { return (expression) } }
 
-         var rewrittenBindings = ko.expressionRewriting.preProcessBindings(bindingsString, options),
 
-             functionBody = "with($context){with($data||{}){return{" + rewrittenBindings + "}}}";
 
-         return new Function("$context", "$element", functionBody);
 
-     }
 
- })();
 
- ko.exportSymbol('bindingProvider', ko.bindingProvider);
 
- (function () {
 
-     ko.bindingHandlers = {};
 
-     // The following element types will not be recursed into during binding. In the future, we
 
-     // may consider adding <template> to this list, because such elements' contents are always
 
-     // intended to be bound in a different context from where they appear in the document.
 
-     var bindingDoesNotRecurseIntoElementTypes = {
 
-         // Don't want bindings that operate on text nodes to mutate <script> and <textarea> contents,
 
-         // because it's unexpected and a potential XSS issue
 
-         'script': true,
 
-         'textarea': true
 
-     };
 
-     // Use an overridable method for retrieving binding handlers so that a plugins may support dynamically created handlers
 
-     ko['getBindingHandler'] = function(bindingKey) {
 
-         return ko.bindingHandlers[bindingKey];
 
-     };
 
-     // The ko.bindingContext constructor is only called directly to create the root context. For child
 
-     // contexts, use bindingContext.createChildContext or bindingContext.extend.
 
-     ko.bindingContext = function(dataItemOrAccessor, parentContext, dataItemAlias, extendCallback) {
 
-         // The binding context object includes static properties for the current, parent, and root view models.
 
-         // If a view model is actually stored in an observable, the corresponding binding context object, and
 
-         // any child contexts, must be updated when the view model is changed.
 
-         function updateContext() {
 
-             // Most of the time, the context will directly get a view model object, but if a function is given,
 
-             // we call the function to retrieve the view model. If the function accesses any obsevables or returns
 
-             // an observable, the dependency is tracked, and those observables can later cause the binding
 
-             // context to be updated.
 
-             var dataItemOrObservable = isFunc ? dataItemOrAccessor() : dataItemOrAccessor,
 
-                 dataItem = ko.utils.unwrapObservable(dataItemOrObservable);
 
-             if (parentContext) {
 
-                 // When a "parent" context is given, register a dependency on the parent context. Thus whenever the
 
-                 // parent context is updated, this context will also be updated.
 
-                 if (parentContext._subscribable)
 
-                     parentContext._subscribable();
 
-                 // Copy $root and any custom properties from the parent context
 
-                 ko.utils.extend(self, parentContext);
 
-                 // Because the above copy overwrites our own properties, we need to reset them.
 
-                 // During the first execution, "subscribable" isn't set, so don't bother doing the update then.
 
-                 if (subscribable) {
 
-                     self._subscribable = subscribable;
 
-                 }
 
-             } else {
 
-                 self['$parents'] = [];
 
-                 self['$root'] = dataItem;
 
-                 // Export 'ko' in the binding context so it will be available in bindings and templates
 
-                 // even if 'ko' isn't exported as a global, such as when using an AMD loader.
 
-                 // See https://github.com/SteveSanderson/knockout/issues/490
 
-                 self['ko'] = ko;
 
-             }
 
-             self['$rawData'] = dataItemOrObservable;
 
-             self['$data'] = dataItem;
 
-             if (dataItemAlias)
 
-                 self[dataItemAlias] = dataItem;
 
-             // The extendCallback function is provided when creating a child context or extending a context.
 
-             // It handles the specific actions needed to finish setting up the binding context. Actions in this
 
-             // function could also add dependencies to this binding context.
 
-             if (extendCallback)
 
-                 extendCallback(self, parentContext, dataItem);
 
-             return self['$data'];
 
-         }
 
-         function disposeWhen() {
 
-             return nodes && !ko.utils.anyDomNodeIsAttachedToDocument(nodes);
 
-         }
 
-         var self = this,
 
-             isFunc = typeof(dataItemOrAccessor) == "function" && !ko.isObservable(dataItemOrAccessor),
 
-             nodes,
 
-             subscribable = ko.dependentObservable(updateContext, null, { disposeWhen: disposeWhen, disposeWhenNodeIsRemoved: true });
 
-         // At this point, the binding context has been initialized, and the "subscribable" computed observable is
 
-         // subscribed to any observables that were accessed in the process. If there is nothing to track, the
 
-         // computed will be inactive, and we can safely throw it away. If it's active, the computed is stored in
 
-         // the context object.
 
-         if (subscribable.isActive()) {
 
-             self._subscribable = subscribable;
 
-             // Always notify because even if the model ($data) hasn't changed, other context properties might have changed
 
-             subscribable['equalityComparer'] = null;
 
-             // We need to be able to dispose of this computed observable when it's no longer needed. This would be
 
-             // easy if we had a single node to watch, but binding contexts can be used by many different nodes, and
 
-             // we cannot assume that those nodes have any relation to each other. So instead we track any node that
 
-             // the context is attached to, and dispose the computed when all of those nodes have been cleaned.
 
-             // Add properties to *subscribable* instead of *self* because any properties added to *self* may be overwritten on updates
 
-             nodes = [];
 
-             subscribable._addNode = function(node) {
 
-                 nodes.push(node);
 
-                 ko.utils.domNodeDisposal.addDisposeCallback(node, function(node) {
 
-                     ko.utils.arrayRemoveItem(nodes, node);
 
-                     if (!nodes.length) {
 
-                         subscribable.dispose();
 
-                         self._subscribable = subscribable = undefined;
 
-                     }
 
-                 });
 
-             };
 
-         }
 
-     }
 
-     // Extend the binding context hierarchy with a new view model object. If the parent context is watching
 
-     // any obsevables, the new child context will automatically get a dependency on the parent context.
 
-     // But this does not mean that the $data value of the child context will also get updated. If the child
 
-     // view model also depends on the parent view model, you must provide a function that returns the correct
 
-     // view model on each update.
 
-     ko.bindingContext.prototype['createChildContext'] = function (dataItemOrAccessor, dataItemAlias, extendCallback) {
 
-         return new ko.bindingContext(dataItemOrAccessor, this, dataItemAlias, function(self, parentContext) {
 
-             // Extend the context hierarchy by setting the appropriate pointers
 
-             self['$parentContext'] = parentContext;
 
-             self['$parent'] = parentContext['$data'];
 
-             self['$parents'] = (parentContext['$parents'] || []).slice(0);
 
-             self['$parents'].unshift(self['$parent']);
 
-             if (extendCallback)
 
-                 extendCallback(self);
 
-         });
 
-     };
 
-     // Extend the binding context with new custom properties. This doesn't change the context hierarchy.
 
-     // Similarly to "child" contexts, provide a function here to make sure that the correct values are set
 
-     // when an observable view model is updated.
 
-     ko.bindingContext.prototype['extend'] = function(properties) {
 
-         // If the parent context references an observable view model, "_subscribable" will always be the
 
-         // latest view model object. If not, "_subscribable" isn't set, and we can use the static "$data" value.
 
-         return new ko.bindingContext(this._subscribable || this['$data'], this, null, function(self, parentContext) {
 
-             // This "child" context doesn't directly track a parent observable view model,
 
-             // so we need to manually set the $rawData value to match the parent.
 
-             self['$rawData'] = parentContext['$rawData'];
 
-             ko.utils.extend(self, typeof(properties) == "function" ? properties() : properties);
 
-         });
 
-     };
 
-     // Returns the valueAccesor function for a binding value
 
-     function makeValueAccessor(value) {
 
-         return function() {
 
-             return value;
 
-         };
 
-     }
 
-     // Returns the value of a valueAccessor function
 
-     function evaluateValueAccessor(valueAccessor) {
 
-         return valueAccessor();
 
-     }
 
-     // Given a function that returns bindings, create and return a new object that contains
 
-     // binding value-accessors functions. Each accessor function calls the original function
 
-     // so that it always gets the latest value and all dependencies are captured. This is used
 
-     // by ko.applyBindingsToNode and getBindingsAndMakeAccessors.
 
-     function makeAccessorsFromFunction(callback) {
 
-         return ko.utils.objectMap(ko.dependencyDetection.ignore(callback), function(value, key) {
 
-             return function() {
 
-                 return callback()[key];
 
-             };
 
-         });
 
-     }
 
-     // Given a bindings function or object, create and return a new object that contains
 
-     // binding value-accessors functions. This is used by ko.applyBindingsToNode.
 
-     function makeBindingAccessors(bindings, context, node) {
 
-         if (typeof bindings === 'function') {
 
-             return makeAccessorsFromFunction(bindings.bind(null, context, node));
 
-         } else {
 
-             return ko.utils.objectMap(bindings, makeValueAccessor);
 
-         }
 
-     }
 
-     // This function is used if the binding provider doesn't include a getBindingAccessors function.
 
-     // It must be called with 'this' set to the provider instance.
 
-     function getBindingsAndMakeAccessors(node, context) {
 
-         return makeAccessorsFromFunction(this['getBindings'].bind(this, node, context));
 
-     }
 
-     function validateThatBindingIsAllowedForVirtualElements(bindingName) {
 
-         var validator = ko.virtualElements.allowedBindings[bindingName];
 
-         if (!validator)
 
-             throw new Error("The binding '" + bindingName + "' cannot be used with virtual elements")
 
-     }
 
-     function applyBindingsToDescendantsInternal (bindingContext, elementOrVirtualElement, bindingContextsMayDifferFromDomParentElement) {
 
-         var currentChild,
 
-             nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement),
 
-             provider = ko.bindingProvider['instance'],
 
-             preprocessNode = provider['preprocessNode'];
 
-         // Preprocessing allows a binding provider to mutate a node before bindings are applied to it. For example it's
 
-         // possible to insert new siblings after it, and/or replace the node with a different one. This can be used to
 
-         // implement custom binding syntaxes, such as {{ value }} for string interpolation, or custom element types that
 
-         // trigger insertion of <template> contents at that point in the document.
 
-         if (preprocessNode) {
 
-             while (currentChild = nextInQueue) {
 
-                 nextInQueue = ko.virtualElements.nextSibling(currentChild);
 
-                 preprocessNode.call(provider, currentChild);
 
-             }
 
-             // Reset nextInQueue for the next loop
 
-             nextInQueue = ko.virtualElements.firstChild(elementOrVirtualElement);
 
-         }
 
-         while (currentChild = nextInQueue) {
 
-             // Keep a record of the next child *before* applying bindings, in case the binding removes the current child from its position
 
-             nextInQueue = ko.virtualElements.nextSibling(currentChild);
 
-             applyBindingsToNodeAndDescendantsInternal(bindingContext, currentChild, bindingContextsMayDifferFromDomParentElement);
 
-         }
 
-     }
 
-     function applyBindingsToNodeAndDescendantsInternal (bindingContext, nodeVerified, bindingContextMayDifferFromDomParentElement) {
 
-         var shouldBindDescendants = true;
 
-         // Perf optimisation: Apply bindings only if...
 
-         // (1) We need to store the binding context on this node (because it may differ from the DOM parent node's binding context)
 
-         //     Note that we can't store binding contexts on non-elements (e.g., text nodes), as IE doesn't allow expando properties for those
 
-         // (2) It might have bindings (e.g., it has a data-bind attribute, or it's a marker for a containerless template)
 
-         var isElement = (nodeVerified.nodeType === 1);
 
-         if (isElement) // Workaround IE <= 8 HTML parsing weirdness
 
-             ko.virtualElements.normaliseVirtualElementDomStructure(nodeVerified);
 
-         var shouldApplyBindings = (isElement && bindingContextMayDifferFromDomParentElement)             // Case (1)
 
-                                || ko.bindingProvider['instance']['nodeHasBindings'](nodeVerified);       // Case (2)
 
-         if (shouldApplyBindings)
 
-             shouldBindDescendants = applyBindingsToNodeInternal(nodeVerified, null, bindingContext, bindingContextMayDifferFromDomParentElement)['shouldBindDescendants'];
 
-         if (shouldBindDescendants && !bindingDoesNotRecurseIntoElementTypes[ko.utils.tagNameLower(nodeVerified)]) {
 
-             // We're recursing automatically into (real or virtual) child nodes without changing binding contexts. So,
 
-             //  * For children of a *real* element, the binding context is certainly the same as on their DOM .parentNode,
 
-             //    hence bindingContextsMayDifferFromDomParentElement is false
 
-             //  * For children of a *virtual* element, we can't be sure. Evaluating .parentNode on those children may
 
-             //    skip over any number of intermediate virtual elements, any of which might define a custom binding context,
 
-             //    hence bindingContextsMayDifferFromDomParentElement is true
 
-             applyBindingsToDescendantsInternal(bindingContext, nodeVerified, /* bindingContextsMayDifferFromDomParentElement: */ !isElement);
 
-         }
 
-     }
 
-     var boundElementDomDataKey = ko.utils.domData.nextKey();
 
-     function topologicalSortBindings(bindings) {
 
-         // Depth-first sort
 
-         var result = [],                // The list of key/handler pairs that we will return
 
-             bindingsConsidered = {},    // A temporary record of which bindings are already in 'result'
 
-             cyclicDependencyStack = []; // Keeps track of a depth-search so that, if there's a cycle, we know which bindings caused it
 
-         ko.utils.objectForEach(bindings, function pushBinding(bindingKey) {
 
-             if (!bindingsConsidered[bindingKey]) {
 
-                 var binding = ko['getBindingHandler'](bindingKey);
 
-                 if (binding) {
 
-                     // First add dependencies (if any) of the current binding
 
-                     if (binding['after']) {
 
-                         cyclicDependencyStack.push(bindingKey);
 
-                         ko.utils.arrayForEach(binding['after'], function(bindingDependencyKey) {
 
-                             if (bindings[bindingDependencyKey]) {
 
-                                 if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {
 
-                                     throw Error("Cannot combine the following bindings, because they have a cyclic dependency: " + cyclicDependencyStack.join(", "));
 
-                                 } else {
 
-                                     pushBinding(bindingDependencyKey);
 
-                                 }
 
-                             }
 
-                         });
 
-                         cyclicDependencyStack.length--;
 
-                     }
 
-                     // Next add the current binding
 
-                     result.push({ key: bindingKey, handler: binding });
 
-                 }
 
-                 bindingsConsidered[bindingKey] = true;
 
-             }
 
-         });
 
-         return result;
 
-     }
 
-     function applyBindingsToNodeInternal(node, sourceBindings, bindingContext, bindingContextMayDifferFromDomParentElement) {
 
-         // Prevent multiple applyBindings calls for the same node, except when a binding value is specified
 
-         var alreadyBound = ko.utils.domData.get(node, boundElementDomDataKey);
 
-         if (!sourceBindings) {
 
-             if (alreadyBound) {
 
-                 throw Error("You cannot apply bindings multiple times to the same element.");
 
-             }
 
-             ko.utils.domData.set(node, boundElementDomDataKey, true);
 
-         }
 
-         // Optimization: Don't store the binding context on this node if it's definitely the same as on node.parentNode, because
 
-         // we can easily recover it just by scanning up the node's ancestors in the DOM
 
-         // (note: here, parent node means "real DOM parent" not "virtual parent", as there's no O(1) way to find the virtual parent)
 
-         if (!alreadyBound && bindingContextMayDifferFromDomParentElement)
 
-             ko.storedBindingContextForNode(node, bindingContext);
 
-         // Use bindings if given, otherwise fall back on asking the bindings provider to give us some bindings
 
-         var bindings;
 
-         if (sourceBindings && typeof sourceBindings !== 'function') {
 
-             bindings = sourceBindings;
 
-         } else {
 
-             var provider = ko.bindingProvider['instance'],
 
-                 getBindings = provider['getBindingAccessors'] || getBindingsAndMakeAccessors;
 
-             // Get the binding from the provider within a computed observable so that we can update the bindings whenever
 
-             // the binding context is updated or if the binding provider accesses observables.
 
-             var bindingsUpdater = ko.dependentObservable(
 
-                 function() {
 
-                     bindings = sourceBindings ? sourceBindings(bindingContext, node) : getBindings.call(provider, node, bindingContext);
 
-                     // Register a dependency on the binding context to support obsevable view models.
 
-                     if (bindings && bindingContext._subscribable)
 
-                         bindingContext._subscribable();
 
-                     return bindings;
 
-                 },
 
-                 null, { disposeWhenNodeIsRemoved: node }
 
-             );
 
-             if (!bindings || !bindingsUpdater.isActive())
 
-                 bindingsUpdater = null;
 
-         }
 
-         var bindingHandlerThatControlsDescendantBindings;
 
-         if (bindings) {
 
-             // Return the value accessor for a given binding. When bindings are static (won't be updated because of a binding
 
-             // context update), just return the value accessor from the binding. Otherwise, return a function that always gets
 
-             // the latest binding value and registers a dependency on the binding updater.
 
-             var getValueAccessor = bindingsUpdater
 
-                 ? function(bindingKey) {
 
-                     return function() {
 
-                         return evaluateValueAccessor(bindingsUpdater()[bindingKey]);
 
-                     };
 
-                 } : function(bindingKey) {
 
-                     return bindings[bindingKey];
 
-                 };
 
-             // Use of allBindings as a function is maintained for backwards compatibility, but its use is deprecated
 
-             function allBindings() {
 
-                 return ko.utils.objectMap(bindingsUpdater ? bindingsUpdater() : bindings, evaluateValueAccessor);
 
-             }
 
-             // The following is the 3.x allBindings API
 
-             allBindings['get'] = function(key) {
 
-                 return bindings[key] && evaluateValueAccessor(getValueAccessor(key));
 
-             };
 
-             allBindings['has'] = function(key) {
 
-                 return key in bindings;
 
-             };
 
-             // First put the bindings into the right order
 
-             var orderedBindings = topologicalSortBindings(bindings);
 
-             // Go through the sorted bindings, calling init and update for each
 
-             ko.utils.arrayForEach(orderedBindings, function(bindingKeyAndHandler) {
 
-                 // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,
 
-                 // so bindingKeyAndHandler.handler will always be nonnull.
 
-                 var handlerInitFn = bindingKeyAndHandler.handler["init"],
 
-                     handlerUpdateFn = bindingKeyAndHandler.handler["update"],
 
-                     bindingKey = bindingKeyAndHandler.key;
 
-                 if (node.nodeType === 8) {
 
-                     validateThatBindingIsAllowedForVirtualElements(bindingKey);
 
-                 }
 
-                 try {
 
-                     // Run init, ignoring any dependencies
 
-                     if (typeof handlerInitFn == "function") {
 
-                         ko.dependencyDetection.ignore(function() {
 
-                             var initResult = handlerInitFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);
 
-                             // If this binding handler claims to control descendant bindings, make a note of this
 
-                             if (initResult && initResult['controlsDescendantBindings']) {
 
-                                 if (bindingHandlerThatControlsDescendantBindings !== undefined)
 
-                                     throw new Error("Multiple bindings (" + bindingHandlerThatControlsDescendantBindings + " and " + bindingKey + ") are trying to control descendant bindings of the same element. You cannot use these bindings together on the same element.");
 
-                                 bindingHandlerThatControlsDescendantBindings = bindingKey;
 
-                             }
 
-                         });
 
-                     }
 
-                     // Run update in its own computed wrapper
 
-                     if (typeof handlerUpdateFn == "function") {
 
-                         ko.dependentObservable(
 
-                             function() {
 
-                                 handlerUpdateFn(node, getValueAccessor(bindingKey), allBindings, bindingContext['$data'], bindingContext);
 
-                             },
 
-                             null,
 
-                             { disposeWhenNodeIsRemoved: node }
 
-                         );
 
-                     }
 
-                 } catch (ex) {
 
-                     ex.message = "Unable to process binding \"" + bindingKey + ": " + bindings[bindingKey] + "\"\nMessage: " + ex.message;
 
-                     throw ex;
 
-                 }
 
-             });
 
-         }
 
-         return {
 
-             'shouldBindDescendants': bindingHandlerThatControlsDescendantBindings === undefined
 
-         };
 
-     };
 
-     var storedBindingContextDomDataKey = ko.utils.domData.nextKey();
 
-     ko.storedBindingContextForNode = function (node, bindingContext) {
 
-         if (arguments.length == 2) {
 
-             ko.utils.domData.set(node, storedBindingContextDomDataKey, bindingContext);
 
-             if (bindingContext._subscribable)
 
-                 bindingContext._subscribable._addNode(node);
 
-         } else {
 
-             return ko.utils.domData.get(node, storedBindingContextDomDataKey);
 
-         }
 
-     }
 
-     function getBindingContext(viewModelOrBindingContext) {
 
-         return viewModelOrBindingContext && (viewModelOrBindingContext instanceof ko.bindingContext)
 
-             ? viewModelOrBindingContext
 
-             : new ko.bindingContext(viewModelOrBindingContext);
 
-     }
 
-     ko.applyBindingAccessorsToNode = function (node, bindings, viewModelOrBindingContext) {
 
-         if (node.nodeType === 1) // If it's an element, workaround IE <= 8 HTML parsing weirdness
 
-             ko.virtualElements.normaliseVirtualElementDomStructure(node);
 
-         return applyBindingsToNodeInternal(node, bindings, getBindingContext(viewModelOrBindingContext), true);
 
-     };
 
-     ko.applyBindingsToNode = function (node, bindings, viewModelOrBindingContext) {
 
-         var context = getBindingContext(viewModelOrBindingContext);
 
-         return ko.applyBindingAccessorsToNode(node, makeBindingAccessors(bindings, context, node), context);
 
-     };
 
-     ko.applyBindingsToDescendants = function(viewModelOrBindingContext, rootNode) {
 
-         if (rootNode.nodeType === 1 || rootNode.nodeType === 8)
 
-             applyBindingsToDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
 
-     };
 
-     ko.applyBindings = function (viewModelOrBindingContext, rootNode) {
 
-         // If jQuery is loaded after Knockout, we won't initially have access to it. So save it here.
 
-         if (!jQueryInstance && window['jQuery']) {
 
-             jQueryInstance = window['jQuery'];
 
-         }
 
-         if (rootNode && (rootNode.nodeType !== 1) && (rootNode.nodeType !== 8))
 
-             throw new Error("ko.applyBindings: first parameter should be your view model; second parameter should be a DOM node");
 
-         rootNode = rootNode || window.document.body; // Make "rootNode" parameter optional
 
-         applyBindingsToNodeAndDescendantsInternal(getBindingContext(viewModelOrBindingContext), rootNode, true);
 
-     };
 
-     // Retrieving binding context from arbitrary nodes
 
-     ko.contextFor = function(node) {
 
-         // We can only do something meaningful for elements and comment nodes (in particular, not text nodes, as IE can't store domdata for them)
 
-         switch (node.nodeType) {
 
-             case 1:
 
-             case 8:
 
-                 var context = ko.storedBindingContextForNode(node);
 
-                 if (context) return context;
 
-                 if (node.parentNode) return ko.contextFor(node.parentNode);
 
-                 break;
 
-         }
 
-         return undefined;
 
-     };
 
-     ko.dataFor = function(node) {
 
-         var context = ko.contextFor(node);
 
-         return context ? context['$data'] : undefined;
 
-     };
 
-     ko.exportSymbol('bindingHandlers', ko.bindingHandlers);
 
-     ko.exportSymbol('applyBindings', ko.applyBindings);
 
-     ko.exportSymbol('applyBindingsToDescendants', ko.applyBindingsToDescendants);
 
-     ko.exportSymbol('applyBindingAccessorsToNode', ko.applyBindingAccessorsToNode);
 
-     ko.exportSymbol('applyBindingsToNode', ko.applyBindingsToNode);
 
-     ko.exportSymbol('contextFor', ko.contextFor);
 
-     ko.exportSymbol('dataFor', ko.dataFor);
 
- })();
 
- (function(undefined) {
 
-     var loadingSubscribablesCache = {}, // Tracks component loads that are currently in flight
 
-         loadedDefinitionsCache = {};    // Tracks component loads that have already completed
 
-     ko.components = {
 
-         get: function(componentName, callback) {
 
-             var cachedDefinition = getObjectOwnProperty(loadedDefinitionsCache, componentName);
 
-             if (cachedDefinition) {
 
-                 // It's already loaded and cached. Reuse the same definition object.
 
-                 // Note that for API consistency, even cache hits complete asynchronously by default.
 
-                 // You can bypass this by putting synchronous:true on your component config.
 
-                 if (cachedDefinition.isSynchronousComponent) {
 
-                     ko.dependencyDetection.ignore(function() { // See comment in loaderRegistryBehaviors.js for reasoning
 
-                         callback(cachedDefinition.definition);
 
-                     });
 
-                 } else {
 
-                     setTimeout(function() { callback(cachedDefinition.definition); }, 0);
 
-                 }
 
-             } else {
 
-                 // Join the loading process that is already underway, or start a new one.
 
-                 loadComponentAndNotify(componentName, callback);
 
-             }
 
-         },
 
-         clearCachedDefinition: function(componentName) {
 
-             delete loadedDefinitionsCache[componentName];
 
-         },
 
-         _getFirstResultFromLoaders: getFirstResultFromLoaders
 
-     };
 
-     function getObjectOwnProperty(obj, propName) {
 
-         return obj.hasOwnProperty(propName) ? obj[propName] : undefined;
 
-     }
 
-     function loadComponentAndNotify(componentName, callback) {
 
-         var subscribable = getObjectOwnProperty(loadingSubscribablesCache, componentName),
 
-             completedAsync;
 
-         if (!subscribable) {
 
-             // It's not started loading yet. Start loading, and when it's done, move it to loadedDefinitionsCache.
 
-             subscribable = loadingSubscribablesCache[componentName] = new ko.subscribable();
 
-             subscribable.subscribe(callback);
 
-             beginLoadingComponent(componentName, function(definition, config) {
 
-                 var isSynchronousComponent = !!(config && config['synchronous']);
 
-                 loadedDefinitionsCache[componentName] = { definition: definition, isSynchronousComponent: isSynchronousComponent };
 
-                 delete loadingSubscribablesCache[componentName];
 
-                 // For API consistency, all loads complete asynchronously. However we want to avoid
 
-                 // adding an extra setTimeout if it's unnecessary (i.e., the completion is already
 
-                 // async) since setTimeout(..., 0) still takes about 16ms or more on most browsers.
 
-                 //
 
-                 // You can bypass the 'always synchronous' feature by putting the synchronous:true
 
-                 // flag on your component configuration when you register it.
 
-                 if (completedAsync || isSynchronousComponent) {
 
-                     // Note that notifySubscribers ignores any dependencies read within the callback.
 
-                     // See comment in loaderRegistryBehaviors.js for reasoning
 
-                     subscribable['notifySubscribers'](definition);
 
-                 } else {
 
-                     setTimeout(function() {
 
-                         subscribable['notifySubscribers'](definition);
 
-                     }, 0);
 
-                 }
 
-             });
 
-             completedAsync = true;
 
-         } else {
 
-             subscribable.subscribe(callback);
 
-         }
 
-     }
 
-     function beginLoadingComponent(componentName, callback) {
 
-         getFirstResultFromLoaders('getConfig', [componentName], function(config) {
 
-             if (config) {
 
-                 // We have a config, so now load its definition
 
-                 getFirstResultFromLoaders('loadComponent', [componentName, config], function(definition) {
 
-                     callback(definition, config);
 
-                 });
 
-             } else {
 
-                 // The component has no config - it's unknown to all the loaders.
 
-                 // Note that this is not an error (e.g., a module loading error) - that would abort the
 
-                 // process and this callback would not run. For this callback to run, all loaders must
 
-                 // have confirmed they don't know about this component.
 
-                 callback(null, null);
 
-             }
 
-         });
 
-     }
 
-     function getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders) {
 
-         // On the first call in the stack, start with the full set of loaders
 
-         if (!candidateLoaders) {
 
-             candidateLoaders = ko.components['loaders'].slice(0); // Use a copy, because we'll be mutating this array
 
-         }
 
-         // Try the next candidate
 
-         var currentCandidateLoader = candidateLoaders.shift();
 
-         if (currentCandidateLoader) {
 
-             var methodInstance = currentCandidateLoader[methodName];
 
-             if (methodInstance) {
 
-                 var wasAborted = false,
 
-                     synchronousReturnValue = methodInstance.apply(currentCandidateLoader, argsExceptCallback.concat(function(result) {
 
-                         if (wasAborted) {
 
-                             callback(null);
 
-                         } else if (result !== null) {
 
-                             // This candidate returned a value. Use it.
 
-                             callback(result);
 
-                         } else {
 
-                             // Try the next candidate
 
-                             getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
 
-                         }
 
-                     }));
 
-                 // Currently, loaders may not return anything synchronously. This leaves open the possibility
 
-                 // that we'll extend the API to support synchronous return values in the future. It won't be
 
-                 // a breaking change, because currently no loader is allowed to return anything except undefined.
 
-                 if (synchronousReturnValue !== undefined) {
 
-                     wasAborted = true;
 
-                     // Method to suppress exceptions will remain undocumented. This is only to keep
 
-                     // KO's specs running tidily, since we can observe the loading got aborted without
 
-                     // having exceptions cluttering up the console too.
 
-                     if (!currentCandidateLoader['suppressLoaderExceptions']) {
 
-                         throw new Error('Component loaders must supply values by invoking the callback, not by returning values synchronously.');
 
-                     }
 
-                 }
 
-             } else {
 
-                 // This candidate doesn't have the relevant handler. Synchronously move on to the next one.
 
-                 getFirstResultFromLoaders(methodName, argsExceptCallback, callback, candidateLoaders);
 
-             }
 
-         } else {
 
-             // No candidates returned a value
 
-             callback(null);
 
-         }
 
-     }
 
-     // Reference the loaders via string name so it's possible for developers
 
-     // to replace the whole array by assigning to ko.components.loaders
 
-     ko.components['loaders'] = [];
 
-     ko.exportSymbol('components', ko.components);
 
-     ko.exportSymbol('components.get', ko.components.get);
 
-     ko.exportSymbol('components.clearCachedDefinition', ko.components.clearCachedDefinition);
 
- })();
 
- (function(undefined) {
 
-     // The default loader is responsible for two things:
 
-     // 1. Maintaining the default in-memory registry of component configuration objects
 
-     //    (i.e., the thing you're writing to when you call ko.components.register(someName, ...))
 
-     // 2. Answering requests for components by fetching configuration objects
 
-     //    from that default in-memory registry and resolving them into standard
 
-     //    component definition objects (of the form { createViewModel: ..., template: ... })
 
-     // Custom loaders may override either of these facilities, i.e.,
 
-     // 1. To supply configuration objects from some other source (e.g., conventions)
 
-     // 2. Or, to resolve configuration objects by loading viewmodels/templates via arbitrary logic.
 
-     var defaultConfigRegistry = {};
 
-     ko.components.register = function(componentName, config) {
 
-         if (!config) {
 
-             throw new Error('Invalid configuration for ' + componentName);
 
-         }
 
-         if (ko.components.isRegistered(componentName)) {
 
-             throw new Error('Component ' + componentName + ' is already registered');
 
-         }
 
-         defaultConfigRegistry[componentName] = config;
 
-     }
 
-     ko.components.isRegistered = function(componentName) {
 
-         return componentName in defaultConfigRegistry;
 
-     }
 
-     ko.components.unregister = function(componentName) {
 
-         delete defaultConfigRegistry[componentName];
 
-         ko.components.clearCachedDefinition(componentName);
 
-     }
 
-     ko.components.defaultLoader = {
 
-         'getConfig': function(componentName, callback) {
 
-             var result = defaultConfigRegistry.hasOwnProperty(componentName)
 
-                 ? defaultConfigRegistry[componentName]
 
-                 : null;
 
-             callback(result);
 
-         },
 
-         'loadComponent': function(componentName, config, callback) {
 
-             var errorCallback = makeErrorCallback(componentName);
 
-             possiblyGetConfigFromAmd(errorCallback, config, function(loadedConfig) {
 
-                 resolveConfig(componentName, errorCallback, loadedConfig, callback);
 
-             });
 
-         },
 
-         'loadTemplate': function(componentName, templateConfig, callback) {
 
-             resolveTemplate(makeErrorCallback(componentName), templateConfig, callback);
 
-         },
 
-         'loadViewModel': function(componentName, viewModelConfig, callback) {
 
-             resolveViewModel(makeErrorCallback(componentName), viewModelConfig, callback);
 
-         }
 
-     };
 
-     var createViewModelKey = 'createViewModel';
 
-     // Takes a config object of the form { template: ..., viewModel: ... }, and asynchronously convert it
 
-     // into the standard component definition format:
 
-     //    { template: <ArrayOfDomNodes>, createViewModel: function(params, componentInfo) { ... } }.
 
-     // Since both template and viewModel may need to be resolved asynchronously, both tasks are performed
 
-     // in parallel, and the results joined when both are ready. We don't depend on any promises infrastructure,
 
-     // so this is implemented manually below.
 
-     function resolveConfig(componentName, errorCallback, config, callback) {
 
-         var result = {},
 
-             makeCallBackWhenZero = 2,
 
-             tryIssueCallback = function() {
 
-                 if (--makeCallBackWhenZero === 0) {
 
-                     callback(result);
 
-                 }
 
-             },
 
-             templateConfig = config['template'],
 
-             viewModelConfig = config['viewModel'];
 
-         if (templateConfig) {
 
-             possiblyGetConfigFromAmd(errorCallback, templateConfig, function(loadedConfig) {
 
-                 ko.components._getFirstResultFromLoaders('loadTemplate', [componentName, loadedConfig], function(resolvedTemplate) {
 
-                     result['template'] = resolvedTemplate;
 
-                     tryIssueCallback();
 
-                 });
 
-             });
 
-         } else {
 
-             tryIssueCallback();
 
-         }
 
-         if (viewModelConfig) {
 
-             possiblyGetConfigFromAmd(errorCallback, viewModelConfig, function(loadedConfig) {
 
-                 ko.components._getFirstResultFromLoaders('loadViewModel', [componentName, loadedConfig], function(resolvedViewModel) {
 
-                     result[createViewModelKey] = resolvedViewModel;
 
-                     tryIssueCallback();
 
-                 });
 
-             });
 
-         } else {
 
-             tryIssueCallback();
 
-         }
 
-     }
 
-     function resolveTemplate(errorCallback, templateConfig, callback) {
 
-         if (typeof templateConfig === 'string') {
 
-             // Markup - parse it
 
-             callback(ko.utils.parseHtmlFragment(templateConfig));
 
-         } else if (templateConfig instanceof Array) {
 
-             // Assume already an array of DOM nodes - pass through unchanged
 
-             callback(templateConfig);
 
-         } else if (isDocumentFragment(templateConfig)) {
 
-             // Document fragment - use its child nodes
 
-             callback(ko.utils.makeArray(templateConfig.childNodes));
 
-         } else if (templateConfig['element']) {
 
-             var element = templateConfig['element'];
 
-             if (isDomElement(element)) {
 
-                 // Element instance - copy its child nodes
 
-                 callback(cloneNodesFromTemplateSourceElement(element));
 
-             } else if (typeof element === 'string') {
 
-                 // Element ID - find it, then copy its child nodes
 
-                 var elemInstance = document.getElementById(element);
 
-                 if (elemInstance) {
 
-                     callback(cloneNodesFromTemplateSourceElement(elemInstance));
 
-                 } else {
 
-                     errorCallback('Cannot find element with ID ' + element);
 
-                 }
 
-             } else {
 
-                 errorCallback('Unknown element type: ' + element);
 
-             }
 
-         } else {
 
-             errorCallback('Unknown template value: ' + templateConfig);
 
-         }
 
-     }
 
-     function resolveViewModel(errorCallback, viewModelConfig, callback) {
 
-         if (typeof viewModelConfig === 'function') {
 
-             // Constructor - convert to standard factory function format
 
-             // By design, this does *not* supply componentInfo to the constructor, as the intent is that
 
-             // componentInfo contains non-viewmodel data (e.g., the component's element) that should only
 
-             // be used in factory functions, not viewmodel constructors.
 
-             callback(function (params /*, componentInfo */) {
 
-                 return new viewModelConfig(params);
 
-             });
 
-         } else if (typeof viewModelConfig[createViewModelKey] === 'function') {
 
-             // Already a factory function - use it as-is
 
-             callback(viewModelConfig[createViewModelKey]);
 
-         } else if ('instance' in viewModelConfig) {
 
-             // Fixed object instance - promote to createViewModel format for API consistency
 
-             var fixedInstance = viewModelConfig['instance'];
 
-             callback(function (params, componentInfo) {
 
-                 return fixedInstance;
 
-             });
 
-         } else if ('viewModel' in viewModelConfig) {
 
-             // Resolved AMD module whose value is of the form { viewModel: ... }
 
-             resolveViewModel(errorCallback, viewModelConfig['viewModel'], callback);
 
-         } else {
 
-             errorCallback('Unknown viewModel value: ' + viewModelConfig);
 
-         }
 
-     }
 
-     function cloneNodesFromTemplateSourceElement(elemInstance) {
 
-         switch (ko.utils.tagNameLower(elemInstance)) {
 
-             case 'script':
 
-                 return ko.utils.parseHtmlFragment(elemInstance.text);
 
-             case 'textarea':
 
-                 return ko.utils.parseHtmlFragment(elemInstance.value);
 
-             case 'template':
 
-                 // For browsers with proper <template> element support (i.e., where the .content property
 
-                 // gives a document fragment), use that document fragment.
 
-                 if (isDocumentFragment(elemInstance.content)) {
 
-                     return ko.utils.cloneNodes(elemInstance.content.childNodes);
 
-                 }
 
-         }
 
-         // Regular elements such as <div>, and <template> elements on old browsers that don't really
 
-         // understand <template> and just treat it as a regular container
 
-         return ko.utils.cloneNodes(elemInstance.childNodes);
 
-     }
 
-     function isDomElement(obj) {
 
-         if (window['HTMLElement']) {
 
-             return obj instanceof HTMLElement;
 
-         } else {
 
-             return obj && obj.tagName && obj.nodeType === 1;
 
-         }
 
-     }
 
-     function isDocumentFragment(obj) {
 
-         if (window['DocumentFragment']) {
 
-             return obj instanceof DocumentFragment;
 
-         } else {
 
-             return obj && obj.nodeType === 11;
 
-         }
 
-     }
 
-     function possiblyGetConfigFromAmd(errorCallback, config, callback) {
 
-         if (typeof config['require'] === 'string') {
 
-             // The config is the value of an AMD module
 
-             if (amdRequire || window['require']) {
 
-                 (amdRequire || window['require'])([config['require']], callback);
 
-             } else {
 
-                 errorCallback('Uses require, but no AMD loader is present');
 
-             }
 
-         } else {
 
-             callback(config);
 
-         }
 
-     }
 
-     function makeErrorCallback(componentName) {
 
-         return function (message) {
 
-             throw new Error('Component \'' + componentName + '\': ' + message);
 
-         };
 
-     }
 
-     ko.exportSymbol('components.register', ko.components.register);
 
-     ko.exportSymbol('components.isRegistered', ko.components.isRegistered);
 
-     ko.exportSymbol('components.unregister', ko.components.unregister);
 
-     // Expose the default loader so that developers can directly ask it for configuration
 
-     // or to resolve configuration
 
-     ko.exportSymbol('components.defaultLoader', ko.components.defaultLoader);
 
-     // By default, the default loader is the only registered component loader
 
-     ko.components['loaders'].push(ko.components.defaultLoader);
 
-     // Privately expose the underlying config registry for use in old-IE shim
 
-     ko.components._allRegisteredComponents = defaultConfigRegistry;
 
- })();
 
- (function (undefined) {
 
-     // Overridable API for determining which component name applies to a given node. By overriding this,
 
-     // you can for example map specific tagNames to components that are not preregistered.
 
-     ko.components['getComponentNameForNode'] = function(node) {
 
-         var tagNameLower = ko.utils.tagNameLower(node);
 
-         return ko.components.isRegistered(tagNameLower) && tagNameLower;
 
-     };
 
-     ko.components.addBindingsForCustomElement = function(allBindings, node, bindingContext, valueAccessors) {
 
-         // Determine if it's really a custom element matching a component
 
-         if (node.nodeType === 1) {
 
-             var componentName = ko.components['getComponentNameForNode'](node);
 
-             if (componentName) {
 
-                 // It does represent a component, so add a component binding for it
 
-                 allBindings = allBindings || {};
 
-                 if (allBindings['component']) {
 
-                     // Avoid silently overwriting some other 'component' binding that may already be on the element
 
-                     throw new Error('Cannot use the "component" binding on a custom element matching a component');
 
-                 }
 
-                 var componentBindingValue = { 'name': componentName, 'params': getComponentParamsFromCustomElement(node, bindingContext) };
 
-                 allBindings['component'] = valueAccessors
 
-                     ? function() { return componentBindingValue; }
 
-                     : componentBindingValue;
 
-             }
 
-         }
 
-         return allBindings;
 
-     }
 
-     var nativeBindingProviderInstance = new ko.bindingProvider();
 
-     function getComponentParamsFromCustomElement(elem, bindingContext) {
 
-         var paramsAttribute = elem.getAttribute('params');
 
-         if (paramsAttribute) {
 
-             var params = nativeBindingProviderInstance['parseBindingsString'](paramsAttribute, bindingContext, elem, { 'valueAccessors': true, 'bindingParams': true }),
 
-                 rawParamComputedValues = ko.utils.objectMap(params, function(paramValue, paramName) {
 
-                     return ko.computed(paramValue, null, { disposeWhenNodeIsRemoved: elem });
 
-                 }),
 
-                 result = ko.utils.objectMap(rawParamComputedValues, function(paramValueComputed, paramName) {
 
-                     var paramValue = paramValueComputed.peek();
 
-                     // Does the evaluation of the parameter value unwrap any observables?
 
-                     if (!paramValueComputed.isActive()) {
 
-                         // No it doesn't, so there's no need for any computed wrapper. Just pass through the supplied value directly.
 
-                         // Example: "someVal: firstName, age: 123" (whether or not firstName is an observable/computed)
 
-                         return paramValue;
 
-                     } else {
 
-                         // Yes it does. Supply a computed property that unwraps both the outer (binding expression)
 
-                         // level of observability, and any inner (resulting model value) level of observability.
 
-                         // This means the component doesn't have to worry about multiple unwrapping. If the value is a
 
-                         // writable observable, the computed will also be writable and pass the value on to the observable.
 
-                         return ko.computed({
 
-                             'read': function() {
 
-                                 return ko.utils.unwrapObservable(paramValueComputed());
 
-                             },
 
-                             'write': ko.isWriteableObservable(paramValue) && function(value) {
 
-                                 paramValueComputed()(value);
 
-                             },
 
-                             disposeWhenNodeIsRemoved: elem
 
-                         });
 
-                     }
 
-                 });
 
-             // Give access to the raw computeds, as long as that wouldn't overwrite any custom param also called '$raw'
 
-             // This is in case the developer wants to react to outer (binding) observability separately from inner
 
-             // (model value) observability, or in case the model value observable has subobservables.
 
-             if (!result.hasOwnProperty('$raw')) {
 
-                 result['$raw'] = rawParamComputedValues;
 
-             }
 
-             return result;
 
-         } else {
 
-             // For consistency, absence of a "params" attribute is treated the same as the presence of
 
-             // any empty one. Otherwise component viewmodels need special code to check whether or not
 
-             // 'params' or 'params.$raw' is null/undefined before reading subproperties, which is annoying.
 
-             return { '$raw': {} };
 
-         }
 
-     }
 
-     // --------------------------------------------------------------------------------
 
-     // Compatibility code for older (pre-HTML5) IE browsers
 
-     if (ko.utils.ieVersion < 9) {
 
-         // Whenever you preregister a component, enable it as a custom element in the current document
 
-         ko.components['register'] = (function(originalFunction) {
 
-             return function(componentName) {
 
-                 document.createElement(componentName); // Allows IE<9 to parse markup containing the custom element
 
-                 return originalFunction.apply(this, arguments);
 
-             }
 
-         })(ko.components['register']);
 
-         // Whenever you create a document fragment, enable all preregistered component names as custom elements
 
-         // This is needed to make innerShiv/jQuery HTML parsing correctly handle the custom elements
 
-         document.createDocumentFragment = (function(originalFunction) {
 
-             return function() {
 
-                 var newDocFrag = originalFunction(),
 
-                     allComponents = ko.components._allRegisteredComponents;
 
-                 for (var componentName in allComponents) {
 
-                     if (allComponents.hasOwnProperty(componentName)) {
 
-                         newDocFrag.createElement(componentName);
 
-                     }
 
-                 }
 
-                 return newDocFrag;
 
-             };
 
-         })(document.createDocumentFragment);
 
-     }
 
- })();(function(undefined) {
 
-     var componentLoadingOperationUniqueId = 0;
 
-     ko.bindingHandlers['component'] = {
 
-         'init': function(element, valueAccessor, ignored1, ignored2, bindingContext) {
 
-             var currentViewModel,
 
-                 currentLoadingOperationId,
 
-                 disposeAssociatedComponentViewModel = function () {
 
-                     var currentViewModelDispose = currentViewModel && currentViewModel['dispose'];
 
-                     if (typeof currentViewModelDispose === 'function') {
 
-                         currentViewModelDispose.call(currentViewModel);
 
-                     }
 
-                     // Any in-flight loading operation is no longer relevant, so make sure we ignore its completion
 
-                     currentLoadingOperationId = null;
 
-                 },
 
-                 originalChildNodes = ko.utils.makeArray(ko.virtualElements.childNodes(element));
 
-             ko.utils.domNodeDisposal.addDisposeCallback(element, disposeAssociatedComponentViewModel);
 
-             ko.computed(function () {
 
-                 var value = ko.utils.unwrapObservable(valueAccessor()),
 
-                     componentName, componentParams;
 
-                 if (typeof value === 'string') {
 
-                     componentName = value;
 
-                 } else {
 
-                     componentName = ko.utils.unwrapObservable(value['name']);
 
-                     componentParams = ko.utils.unwrapObservable(value['params']);
 
-                 }
 
-                 if (!componentName) {
 
-                     throw new Error('No component name specified');
 
-                 }
 
-                 var loadingOperationId = currentLoadingOperationId = ++componentLoadingOperationUniqueId;
 
-                 ko.components.get(componentName, function(componentDefinition) {
 
-                     // If this is not the current load operation for this element, ignore it.
 
-                     if (currentLoadingOperationId !== loadingOperationId) {
 
-                         return;
 
-                     }
 
-                     // Clean up previous state
 
-                     disposeAssociatedComponentViewModel();
 
-                     // Instantiate and bind new component. Implicitly this cleans any old DOM nodes.
 
-                     if (!componentDefinition) {
 
-                         throw new Error('Unknown component \'' + componentName + '\'');
 
-                     }
 
-                     cloneTemplateIntoElement(componentName, componentDefinition, element);
 
-                     var componentViewModel = createViewModel(componentDefinition, element, originalChildNodes, componentParams),
 
-                         childBindingContext = bindingContext['createChildContext'](componentViewModel, /* dataItemAlias */ undefined, function(ctx) {
 
-                             ctx['$component'] = componentViewModel;
 
-                             ctx['$componentTemplateNodes'] = originalChildNodes;
 
-                         });
 
-                     currentViewModel = componentViewModel;
 
-                     ko.applyBindingsToDescendants(childBindingContext, element);
 
-                 });
 
-             }, null, { disposeWhenNodeIsRemoved: element });
 
-             return { 'controlsDescendantBindings': true };
 
-         }
 
-     };
 
-     ko.virtualElements.allowedBindings['component'] = true;
 
-     function cloneTemplateIntoElement(componentName, componentDefinition, element) {
 
-         var template = componentDefinition['template'];
 
-         if (!template) {
 
-             throw new Error('Component \'' + componentName + '\' has no template');
 
-         }
 
-         var clonedNodesArray = ko.utils.cloneNodes(template);
 
-         ko.virtualElements.setDomNodeChildren(element, clonedNodesArray);
 
-     }
 
-     function createViewModel(componentDefinition, element, originalChildNodes, componentParams) {
 
-         var componentViewModelFactory = componentDefinition['createViewModel'];
 
-         return componentViewModelFactory
 
-             ? componentViewModelFactory.call(componentDefinition, componentParams, { 'element': element, 'templateNodes': originalChildNodes })
 
-             : componentParams; // Template-only component
 
-     }
 
- })();
 
- var attrHtmlToJavascriptMap = { 'class': 'className', 'for': 'htmlFor' };
 
- ko.bindingHandlers['attr'] = {
 
-     'update': function(element, valueAccessor, allBindings) {
 
-         var value = ko.utils.unwrapObservable(valueAccessor()) || {};
 
-         ko.utils.objectForEach(value, function(attrName, attrValue) {
 
-             attrValue = ko.utils.unwrapObservable(attrValue);
 
-             // To cover cases like "attr: { checked:someProp }", we want to remove the attribute entirely
 
-             // when someProp is a "no value"-like value (strictly null, false, or undefined)
 
-             // (because the absence of the "checked" attr is how to mark an element as not checked, etc.)
 
-             var toRemove = (attrValue === false) || (attrValue === null) || (attrValue === undefined);
 
-             if (toRemove)
 
-                 element.removeAttribute(attrName);
 
-             // In IE <= 7 and IE8 Quirks Mode, you have to use the Javascript property name instead of the
 
-             // HTML attribute name for certain attributes. IE8 Standards Mode supports the correct behavior,
 
-             // but instead of figuring out the mode, we'll just set the attribute through the Javascript
 
-             // property for IE <= 8.
 
-             if (ko.utils.ieVersion <= 8 && attrName in attrHtmlToJavascriptMap) {
 
-                 attrName = attrHtmlToJavascriptMap[attrName];
 
-                 if (toRemove)
 
-                     element.removeAttribute(attrName);
 
-                 else
 
-                     element[attrName] = attrValue;
 
-             } else if (!toRemove) {
 
-                 element.setAttribute(attrName, attrValue.toString());
 
-             }
 
-             // Treat "name" specially - although you can think of it as an attribute, it also needs
 
-             // special handling on older versions of IE (https://github.com/SteveSanderson/knockout/pull/333)
 
-             // Deliberately being case-sensitive here because XHTML would regard "Name" as a different thing
 
-             // entirely, and there's no strong reason to allow for such casing in HTML.
 
-             if (attrName === "name") {
 
-                 ko.utils.setElementName(element, toRemove ? "" : attrValue.toString());
 
-             }
 
-         });
 
-     }
 
- };
 
- (function() {
 
- ko.bindingHandlers['checked'] = {
 
-     'after': ['value', 'attr'],
 
-     'init': function (element, valueAccessor, allBindings) {
 
-         var checkedValue = ko.pureComputed(function() {
 
-             // Treat "value" like "checkedValue" when it is included with "checked" binding
 
-             if (allBindings['has']('checkedValue')) {
 
-                 return ko.utils.unwrapObservable(allBindings.get('checkedValue'));
 
-             } else if (allBindings['has']('value')) {
 
-                 return ko.utils.unwrapObservable(allBindings.get('value'));
 
-             }
 
-             return element.value;
 
-         });
 
-         function updateModel() {
 
-             // This updates the model value from the view value.
 
-             // It runs in response to DOM events (click) and changes in checkedValue.
 
-             var isChecked = element.checked,
 
-                 elemValue = useCheckedValue ? checkedValue() : isChecked;
 
-             // When we're first setting up this computed, don't change any model state.
 
-             if (ko.computedContext.isInitial()) {
 
-                 return;
 
-             }
 
-             // We can ignore unchecked radio buttons, because some other radio
 
-             // button will be getting checked, and that one can take care of updating state.
 
-             if (isRadio && !isChecked) {
 
-                 return;
 
-             }
 
-             var modelValue = ko.dependencyDetection.ignore(valueAccessor);
 
-             if (isValueArray) {
 
-                 if (oldElemValue !== elemValue) {
 
-                     // When we're responding to the checkedValue changing, and the element is
 
-                     // currently checked, replace the old elem value with the new elem value
 
-                     // in the model array.
 
-                     if (isChecked) {
 
-                         ko.utils.addOrRemoveItem(modelValue, elemValue, true);
 
-                         ko.utils.addOrRemoveItem(modelValue, oldElemValue, false);
 
-                     }
 
-                     oldElemValue = elemValue;
 
-                 } else {
 
-                     // When we're responding to the user having checked/unchecked a checkbox,
 
-                     // add/remove the element value to the model array.
 
-                     ko.utils.addOrRemoveItem(modelValue, elemValue, isChecked);
 
-                 }
 
-             } else {
 
-                 ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'checked', elemValue, true);
 
-             }
 
-         };
 
-         function updateView() {
 
-             // This updates the view value from the model value.
 
-             // It runs in response to changes in the bound (checked) value.
 
-             var modelValue = ko.utils.unwrapObservable(valueAccessor());
 
-             if (isValueArray) {
 
-                 // When a checkbox is bound to an array, being checked represents its value being present in that array
 
-                 element.checked = ko.utils.arrayIndexOf(modelValue, checkedValue()) >= 0;
 
-             } else if (isCheckbox) {
 
-                 // When a checkbox is bound to any other value (not an array), being checked represents the value being trueish
 
-                 element.checked = modelValue;
 
-             } else {
 
-                 // For radio buttons, being checked means that the radio button's value corresponds to the model value
 
-                 element.checked = (checkedValue() === modelValue);
 
-             }
 
-         };
 
-         var isCheckbox = element.type == "checkbox",
 
-             isRadio = element.type == "radio";
 
-         // Only bind to check boxes and radio buttons
 
-         if (!isCheckbox && !isRadio) {
 
-             return;
 
-         }
 
-         var isValueArray = isCheckbox && (ko.utils.unwrapObservable(valueAccessor()) instanceof Array),
 
-             oldElemValue = isValueArray ? checkedValue() : undefined,
 
-             useCheckedValue = isRadio || isValueArray;
 
-         // IE 6 won't allow radio buttons to be selected unless they have a name
 
-         if (isRadio && !element.name)
 
-             ko.bindingHandlers['uniqueName']['init'](element, function() { return true });
 
-         // Set up two computeds to update the binding:
 
-         // The first responds to changes in the checkedValue value and to element clicks
 
-         ko.computed(updateModel, null, { disposeWhenNodeIsRemoved: element });
 
-         ko.utils.registerEventHandler(element, "click", updateModel);
 
-         // The second responds to changes in the model value (the one associated with the checked binding)
 
-         ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
 
-     }
 
- };
 
- ko.expressionRewriting.twoWayBindings['checked'] = true;
 
- ko.bindingHandlers['checkedValue'] = {
 
-     'update': function (element, valueAccessor) {
 
-         element.value = ko.utils.unwrapObservable(valueAccessor());
 
-     }
 
- };
 
- })();var classesWrittenByBindingKey = '__ko__cssValue';
 
- ko.bindingHandlers['css'] = {
 
-     'update': function (element, valueAccessor) {
 
-         var value = ko.utils.unwrapObservable(valueAccessor());
 
-         if (value !== null && typeof value == "object") {
 
-             ko.utils.objectForEach(value, function(className, shouldHaveClass) {
 
-                 shouldHaveClass = ko.utils.unwrapObservable(shouldHaveClass);
 
-                 ko.utils.toggleDomNodeCssClass(element, className, shouldHaveClass);
 
-             });
 
-         } else {
 
-             value = String(value || ''); // Make sure we don't try to store or set a non-string value
 
-             ko.utils.toggleDomNodeCssClass(element, element[classesWrittenByBindingKey], false);
 
-             element[classesWrittenByBindingKey] = value;
 
-             ko.utils.toggleDomNodeCssClass(element, value, true);
 
-         }
 
-     }
 
- };
 
- ko.bindingHandlers['enable'] = {
 
-     'update': function (element, valueAccessor) {
 
-         var value = ko.utils.unwrapObservable(valueAccessor());
 
-         if (value && element.disabled)
 
-             element.removeAttribute("disabled");
 
-         else if ((!value) && (!element.disabled))
 
-             element.disabled = true;
 
-     }
 
- };
 
- ko.bindingHandlers['disable'] = {
 
-     'update': function (element, valueAccessor) {
 
-         ko.bindingHandlers['enable']['update'](element, function() { return !ko.utils.unwrapObservable(valueAccessor()) });
 
-     }
 
- };
 
- // For certain common events (currently just 'click'), allow a simplified data-binding syntax
 
- // e.g. click:handler instead of the usual full-length event:{click:handler}
 
- function makeEventHandlerShortcut(eventName) {
 
-     ko.bindingHandlers[eventName] = {
 
-         'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-             var newValueAccessor = function () {
 
-                 var result = {};
 
-                 result[eventName] = valueAccessor();
 
-                 return result;
 
-             };
 
-             return ko.bindingHandlers['event']['init'].call(this, element, newValueAccessor, allBindings, viewModel, bindingContext);
 
-         }
 
-     }
 
- }
 
- ko.bindingHandlers['event'] = {
 
-     'init' : function (element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-         var eventsToHandle = valueAccessor() || {};
 
-         ko.utils.objectForEach(eventsToHandle, function(eventName) {
 
-             if (typeof eventName == "string") {
 
-                 ko.utils.registerEventHandler(element, eventName, function (event) {
 
-                     var handlerReturnValue;
 
-                     var handlerFunction = valueAccessor()[eventName];
 
-                     if (!handlerFunction)
 
-                         return;
 
-                     try {
 
-                         // Take all the event args, and prefix with the viewmodel
 
-                         var argsForHandler = ko.utils.makeArray(arguments);
 
-                         viewModel = bindingContext['$data'];
 
-                         argsForHandler.unshift(viewModel);
 
-                         handlerReturnValue = handlerFunction.apply(viewModel, argsForHandler);
 
-                     } finally {
 
-                         if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
 
-                             if (event.preventDefault)
 
-                                 event.preventDefault();
 
-                             else
 
-                                 event.returnValue = false;
 
-                         }
 
-                     }
 
-                     var bubble = allBindings.get(eventName + 'Bubble') !== false;
 
-                     if (!bubble) {
 
-                         event.cancelBubble = true;
 
-                         if (event.stopPropagation)
 
-                             event.stopPropagation();
 
-                     }
 
-                 });
 
-             }
 
-         });
 
-     }
 
- };
 
- // "foreach: someExpression" is equivalent to "template: { foreach: someExpression }"
 
- // "foreach: { data: someExpression, afterAdd: myfn }" is equivalent to "template: { foreach: someExpression, afterAdd: myfn }"
 
- ko.bindingHandlers['foreach'] = {
 
-     makeTemplateValueAccessor: function(valueAccessor) {
 
-         return function() {
 
-             var modelValue = valueAccessor(),
 
-                 unwrappedValue = ko.utils.peekObservable(modelValue);    // Unwrap without setting a dependency here
 
-             // If unwrappedValue is the array, pass in the wrapped value on its own
 
-             // The value will be unwrapped and tracked within the template binding
 
-             // (See https://github.com/SteveSanderson/knockout/issues/523)
 
-             if ((!unwrappedValue) || typeof unwrappedValue.length == "number")
 
-                 return { 'foreach': modelValue, 'templateEngine': ko.nativeTemplateEngine.instance };
 
-             // If unwrappedValue.data is the array, preserve all relevant options and unwrap again value so we get updates
 
-             ko.utils.unwrapObservable(modelValue);
 
-             return {
 
-                 'foreach': unwrappedValue['data'],
 
-                 'as': unwrappedValue['as'],
 
-                 'includeDestroyed': unwrappedValue['includeDestroyed'],
 
-                 'afterAdd': unwrappedValue['afterAdd'],
 
-                 'beforeRemove': unwrappedValue['beforeRemove'],
 
-                 'afterRender': unwrappedValue['afterRender'],
 
-                 'beforeMove': unwrappedValue['beforeMove'],
 
-                 'afterMove': unwrappedValue['afterMove'],
 
-                 'templateEngine': ko.nativeTemplateEngine.instance
 
-             };
 
-         };
 
-     },
 
-     'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-         return ko.bindingHandlers['template']['init'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor));
 
-     },
 
-     'update': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-         return ko.bindingHandlers['template']['update'](element, ko.bindingHandlers['foreach'].makeTemplateValueAccessor(valueAccessor), allBindings, viewModel, bindingContext);
 
-     }
 
- };
 
- ko.expressionRewriting.bindingRewriteValidators['foreach'] = false; // Can't rewrite control flow bindings
 
- ko.virtualElements.allowedBindings['foreach'] = true;
 
- var hasfocusUpdatingProperty = '__ko_hasfocusUpdating';
 
- var hasfocusLastValue = '__ko_hasfocusLastValue';
 
- ko.bindingHandlers['hasfocus'] = {
 
-     'init': function(element, valueAccessor, allBindings) {
 
-         var handleElementFocusChange = function(isFocused) {
 
-             // Where possible, ignore which event was raised and determine focus state using activeElement,
 
-             // as this avoids phantom focus/blur events raised when changing tabs in modern browsers.
 
-             // However, not all KO-targeted browsers (Firefox 2) support activeElement. For those browsers,
 
-             // prevent a loss of focus when changing tabs/windows by setting a flag that prevents hasfocus
 
-             // from calling 'blur()' on the element when it loses focus.
 
-             // Discussion at https://github.com/SteveSanderson/knockout/pull/352
 
-             element[hasfocusUpdatingProperty] = true;
 
-             var ownerDoc = element.ownerDocument;
 
-             if ("activeElement" in ownerDoc) {
 
-                 var active;
 
-                 try {
 
-                     active = ownerDoc.activeElement;
 
-                 } catch(e) {
 
-                     // IE9 throws if you access activeElement during page load (see issue #703)
 
-                     active = ownerDoc.body;
 
-                 }
 
-                 isFocused = (active === element);
 
-             }
 
-             var modelValue = valueAccessor();
 
-             ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'hasfocus', isFocused, true);
 
-             //cache the latest value, so we can avoid unnecessarily calling focus/blur in the update function
 
-             element[hasfocusLastValue] = isFocused;
 
-             element[hasfocusUpdatingProperty] = false;
 
-         };
 
-         var handleElementFocusIn = handleElementFocusChange.bind(null, true);
 
-         var handleElementFocusOut = handleElementFocusChange.bind(null, false);
 
-         ko.utils.registerEventHandler(element, "focus", handleElementFocusIn);
 
-         ko.utils.registerEventHandler(element, "focusin", handleElementFocusIn); // For IE
 
-         ko.utils.registerEventHandler(element, "blur",  handleElementFocusOut);
 
-         ko.utils.registerEventHandler(element, "focusout",  handleElementFocusOut); // For IE
 
-     },
 
-     'update': function(element, valueAccessor) {
 
-         var value = !!ko.utils.unwrapObservable(valueAccessor()); //force boolean to compare with last value
 
-         if (!element[hasfocusUpdatingProperty] && element[hasfocusLastValue] !== value) {
 
-             value ? element.focus() : element.blur();
 
-             ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, value ? "focusin" : "focusout"]); // For IE, which doesn't reliably fire "focus" or "blur" events synchronously
 
-         }
 
-     }
 
- };
 
- ko.expressionRewriting.twoWayBindings['hasfocus'] = true;
 
- ko.bindingHandlers['hasFocus'] = ko.bindingHandlers['hasfocus']; // Make "hasFocus" an alias
 
- ko.expressionRewriting.twoWayBindings['hasFocus'] = true;
 
- ko.bindingHandlers['html'] = {
 
-     'init': function() {
 
-         // Prevent binding on the dynamically-injected HTML (as developers are unlikely to expect that, and it has security implications)
 
-         return { 'controlsDescendantBindings': true };
 
-     },
 
-     'update': function (element, valueAccessor) {
 
-         // setHtml will unwrap the value if needed
 
-         ko.utils.setHtml(element, valueAccessor());
 
-     }
 
- };
 
- // Makes a binding like with or if
 
- function makeWithIfBinding(bindingKey, isWith, isNot, makeContextCallback) {
 
-     ko.bindingHandlers[bindingKey] = {
 
-         'init': function(element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-             var didDisplayOnLastUpdate,
 
-                 savedNodes;
 
-             ko.computed(function() {
 
-                 var dataValue = ko.utils.unwrapObservable(valueAccessor()),
 
-                     shouldDisplay = !isNot !== !dataValue, // equivalent to isNot ? !dataValue : !!dataValue
 
-                     isFirstRender = !savedNodes,
 
-                     needsRefresh = isFirstRender || isWith || (shouldDisplay !== didDisplayOnLastUpdate);
 
-                 if (needsRefresh) {
 
-                     // Save a copy of the inner nodes on the initial update, but only if we have dependencies.
 
-                     if (isFirstRender && ko.computedContext.getDependenciesCount()) {
 
-                         savedNodes = ko.utils.cloneNodes(ko.virtualElements.childNodes(element), true /* shouldCleanNodes */);
 
-                     }
 
-                     if (shouldDisplay) {
 
-                         if (!isFirstRender) {
 
-                             ko.virtualElements.setDomNodeChildren(element, ko.utils.cloneNodes(savedNodes));
 
-                         }
 
-                         ko.applyBindingsToDescendants(makeContextCallback ? makeContextCallback(bindingContext, dataValue) : bindingContext, element);
 
-                     } else {
 
-                         ko.virtualElements.emptyNode(element);
 
-                     }
 
-                     didDisplayOnLastUpdate = shouldDisplay;
 
-                 }
 
-             }, null, { disposeWhenNodeIsRemoved: element });
 
-             return { 'controlsDescendantBindings': true };
 
-         }
 
-     };
 
-     ko.expressionRewriting.bindingRewriteValidators[bindingKey] = false; // Can't rewrite control flow bindings
 
-     ko.virtualElements.allowedBindings[bindingKey] = true;
 
- }
 
- // Construct the actual binding handlers
 
- makeWithIfBinding('if');
 
- makeWithIfBinding('ifnot', false /* isWith */, true /* isNot */);
 
- makeWithIfBinding('with', true /* isWith */, false /* isNot */,
 
-     function(bindingContext, dataValue) {
 
-         return bindingContext['createChildContext'](dataValue);
 
-     }
 
- );
 
- var captionPlaceholder = {};
 
- ko.bindingHandlers['options'] = {
 
-     'init': function(element) {
 
-         if (ko.utils.tagNameLower(element) !== "select")
 
-             throw new Error("options binding applies only to SELECT elements");
 
-         // Remove all existing <option>s.
 
-         while (element.length > 0) {
 
-             element.remove(0);
 
-         }
 
-         // Ensures that the binding processor doesn't try to bind the options
 
-         return { 'controlsDescendantBindings': true };
 
-     },
 
-     'update': function (element, valueAccessor, allBindings) {
 
-         function selectedOptions() {
 
-             return ko.utils.arrayFilter(element.options, function (node) { return node.selected; });
 
-         }
 
-         var selectWasPreviouslyEmpty = element.length == 0,
 
-             multiple = element.multiple,
 
-             previousScrollTop = (!selectWasPreviouslyEmpty && multiple) ? element.scrollTop : null,
 
-             unwrappedArray = ko.utils.unwrapObservable(valueAccessor()),
 
-             valueAllowUnset = allBindings.get('valueAllowUnset') && allBindings['has']('value'),
 
-             includeDestroyed = allBindings.get('optionsIncludeDestroyed'),
 
-             arrayToDomNodeChildrenOptions = {},
 
-             captionValue,
 
-             filteredArray,
 
-             previousSelectedValues = [];
 
-         if (!valueAllowUnset) {
 
-             if (multiple) {
 
-                 previousSelectedValues = ko.utils.arrayMap(selectedOptions(), ko.selectExtensions.readValue);
 
-             } else if (element.selectedIndex >= 0) {
 
-                 previousSelectedValues.push(ko.selectExtensions.readValue(element.options[element.selectedIndex]));
 
-             }
 
-         }
 
-         if (unwrappedArray) {
 
-             if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
 
-                 unwrappedArray = [unwrappedArray];
 
-             // Filter out any entries marked as destroyed
 
-             filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
 
-                 return includeDestroyed || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
 
-             });
 
-             // If caption is included, add it to the array
 
-             if (allBindings['has']('optionsCaption')) {
 
-                 captionValue = ko.utils.unwrapObservable(allBindings.get('optionsCaption'));
 
-                 // If caption value is null or undefined, don't show a caption
 
-                 if (captionValue !== null && captionValue !== undefined) {
 
-                     filteredArray.unshift(captionPlaceholder);
 
-                 }
 
-             }
 
-         } else {
 
-             // If a falsy value is provided (e.g. null), we'll simply empty the select element
 
-         }
 
-         function applyToObject(object, predicate, defaultValue) {
 
-             var predicateType = typeof predicate;
 
-             if (predicateType == "function")    // Given a function; run it against the data value
 
-                 return predicate(object);
 
-             else if (predicateType == "string") // Given a string; treat it as a property name on the data value
 
-                 return object[predicate];
 
-             else                                // Given no optionsText arg; use the data value itself
 
-                 return defaultValue;
 
-         }
 
-         // The following functions can run at two different times:
 
-         // The first is when the whole array is being updated directly from this binding handler.
 
-         // The second is when an observable value for a specific array entry is updated.
 
-         // oldOptions will be empty in the first case, but will be filled with the previously generated option in the second.
 
-         var itemUpdate = false;
 
-         function optionForArrayItem(arrayEntry, index, oldOptions) {
 
-             if (oldOptions.length) {
 
-                 previousSelectedValues = !valueAllowUnset && oldOptions[0].selected ? [ ko.selectExtensions.readValue(oldOptions[0]) ] : [];
 
-                 itemUpdate = true;
 
-             }
 
-             var option = element.ownerDocument.createElement("option");
 
-             if (arrayEntry === captionPlaceholder) {
 
-                 ko.utils.setTextContent(option, allBindings.get('optionsCaption'));
 
-                 ko.selectExtensions.writeValue(option, undefined);
 
-             } else {
 
-                 // Apply a value to the option element
 
-                 var optionValue = applyToObject(arrayEntry, allBindings.get('optionsValue'), arrayEntry);
 
-                 ko.selectExtensions.writeValue(option, ko.utils.unwrapObservable(optionValue));
 
-                 // Apply some text to the option element
 
-                 var optionText = applyToObject(arrayEntry, allBindings.get('optionsText'), optionValue);
 
-                 ko.utils.setTextContent(option, optionText);
 
-             }
 
-             return [option];
 
-         }
 
-         // By using a beforeRemove callback, we delay the removal until after new items are added. This fixes a selection
 
-         // problem in IE<=8 and Firefox. See https://github.com/knockout/knockout/issues/1208
 
-         arrayToDomNodeChildrenOptions['beforeRemove'] =
 
-             function (option) {
 
-                 element.removeChild(option);
 
-             };
 
-         function setSelectionCallback(arrayEntry, newOptions) {
 
-             if (itemUpdate && valueAllowUnset) {
 
-                 // The model value is authoritative, so make sure its value is the one selected
 
-                 // There is no need to use dependencyDetection.ignore since setDomNodeChildrenFromArrayMapping does so already.
 
-                 ko.selectExtensions.writeValue(element, ko.utils.unwrapObservable(allBindings.get('value')), true /* allowUnset */);
 
-             } else if (previousSelectedValues.length) {
 
-                 // 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 isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;
 
-                 ko.utils.setOptionNodeSelectionState(newOptions[0], isSelected);
 
-                 // If this option was changed from being selected during a single-item update, notify the change
 
-                 if (itemUpdate && !isSelected) {
 
-                     ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
 
-                 }
 
-             }
 
-         }
 
-         var callback = setSelectionCallback;
 
-         if (allBindings['has']('optionsAfterRender') && typeof allBindings.get('optionsAfterRender') == "function") {
 
-             callback = function(arrayEntry, newOptions) {
 
-                 setSelectionCallback(arrayEntry, newOptions);
 
-                 ko.dependencyDetection.ignore(allBindings.get('optionsAfterRender'), null, [newOptions[0], arrayEntry !== captionPlaceholder ? arrayEntry : undefined]);
 
-             }
 
-         }
 
-         ko.utils.setDomNodeChildrenFromArrayMapping(element, filteredArray, optionForArrayItem, arrayToDomNodeChildrenOptions, callback);
 
-         ko.dependencyDetection.ignore(function () {
 
-             if (valueAllowUnset) {
 
-                 // The model value is authoritative, so make sure its value is the one selected
 
-                 ko.selectExtensions.writeValue(element, ko.utils.unwrapObservable(allBindings.get('value')), true /* allowUnset */);
 
-             } else {
 
-                 // Determine if the selection has changed as a result of updating the options list
 
-                 var selectionChanged;
 
-                 if (multiple) {
 
-                     // For a multiple-select box, compare the new selection count to the previous one
 
-                     // But if nothing was selected before, the selection can't have changed
 
-                     selectionChanged = previousSelectedValues.length && selectedOptions().length < previousSelectedValues.length;
 
-                 } else {
 
-                     // For a single-select box, compare the current value to the previous value
 
-                     // But if nothing was selected before or nothing is selected now, just look for a change in selection
 
-                     selectionChanged = (previousSelectedValues.length && element.selectedIndex >= 0)
 
-                         ? (ko.selectExtensions.readValue(element.options[element.selectedIndex]) !== previousSelectedValues[0])
 
-                         : (previousSelectedValues.length || element.selectedIndex >= 0);
 
-                 }
 
-                 // Ensure consistency between model value and selected option.
 
-                 // If the dropdown was changed so that selection is no longer the same,
 
-                 // notify the value or selectedOptions binding.
 
-                 if (selectionChanged) {
 
-                     ko.utils.triggerEvent(element, "change");
 
-                 }
 
-             }
 
-         });
 
-         // Workaround for IE bug
 
-         ko.utils.ensureSelectElementIsRenderedCorrectly(element);
 
-         if (previousScrollTop && Math.abs(previousScrollTop - element.scrollTop) > 20)
 
-             element.scrollTop = previousScrollTop;
 
-     }
 
- };
 
- ko.bindingHandlers['options'].optionValueDomDataKey = ko.utils.domData.nextKey();
 
- ko.bindingHandlers['selectedOptions'] = {
 
-     'after': ['options', 'foreach'],
 
-     'init': function (element, valueAccessor, allBindings) {
 
-         ko.utils.registerEventHandler(element, "change", function () {
 
-             var value = valueAccessor(), valueToWrite = [];
 
-             ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
 
-                 if (node.selected)
 
-                     valueToWrite.push(ko.selectExtensions.readValue(node));
 
-             });
 
-             ko.expressionRewriting.writeValueToProperty(value, allBindings, 'selectedOptions', valueToWrite);
 
-         });
 
-     },
 
-     'update': function (element, valueAccessor) {
 
-         if (ko.utils.tagNameLower(element) != "select")
 
-             throw new Error("values binding applies only to SELECT elements");
 
-         var newValue = ko.utils.unwrapObservable(valueAccessor());
 
-         if (newValue && typeof newValue.length == "number") {
 
-             ko.utils.arrayForEach(element.getElementsByTagName("option"), function(node) {
 
-                 var isSelected = ko.utils.arrayIndexOf(newValue, ko.selectExtensions.readValue(node)) >= 0;
 
-                 ko.utils.setOptionNodeSelectionState(node, isSelected);
 
-             });
 
-         }
 
-     }
 
- };
 
- ko.expressionRewriting.twoWayBindings['selectedOptions'] = true;
 
- ko.bindingHandlers['style'] = {
 
-     'update': function (element, valueAccessor) {
 
-         var value = ko.utils.unwrapObservable(valueAccessor() || {});
 
-         ko.utils.objectForEach(value, function(styleName, styleValue) {
 
-             styleValue = ko.utils.unwrapObservable(styleValue);
 
-             if (styleValue === null || styleValue === undefined || styleValue === false) {
 
-                 // Empty string removes the value, whereas null/undefined have no effect
 
-                 styleValue = "";
 
-             }
 
-             element.style[styleName] = styleValue;
 
-         });
 
-     }
 
- };
 
- ko.bindingHandlers['submit'] = {
 
-     'init': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-         if (typeof valueAccessor() != "function")
 
-             throw new Error("The value for a submit binding must be a function");
 
-         ko.utils.registerEventHandler(element, "submit", function (event) {
 
-             var handlerReturnValue;
 
-             var value = valueAccessor();
 
-             try { handlerReturnValue = value.call(bindingContext['$data'], element); }
 
-             finally {
 
-                 if (handlerReturnValue !== true) { // Normally we want to prevent default action. Developer can override this be explicitly returning true.
 
-                     if (event.preventDefault)
 
-                         event.preventDefault();
 
-                     else
 
-                         event.returnValue = false;
 
-                 }
 
-             }
 
-         });
 
-     }
 
- };
 
- ko.bindingHandlers['text'] = {
 
-     'init': function() {
 
-         // Prevent binding on the dynamically-injected text node (as developers are unlikely to expect that, and it has security implications).
 
-         // It should also make things faster, as we no longer have to consider whether the text node might be bindable.
 
-         return { 'controlsDescendantBindings': true };
 
-     },
 
-     'update': function (element, valueAccessor) {
 
-         ko.utils.setTextContent(element, valueAccessor());
 
-     }
 
- };
 
- ko.virtualElements.allowedBindings['text'] = true;
 
- (function () {
 
- if (window && window.navigator) {
 
-     var parseVersion = function (matches) {
 
-         if (matches) {
 
-             return parseFloat(matches[1]);
 
-         }
 
-     };
 
-     // Detect various browser versions because some old versions don't fully support the 'input' event
 
-     var operaVersion = window.opera && window.opera.version && parseInt(window.opera.version()),
 
-         userAgent = window.navigator.userAgent,
 
-         safariVersion = parseVersion(userAgent.match(/^(?:(?!chrome).)*version\/([^ ]*) safari/i)),
 
-         firefoxVersion = parseVersion(userAgent.match(/Firefox\/([^ ]*)/));
 
- }
 
- // IE 8 and 9 have bugs that prevent the normal events from firing when the value changes.
 
- // But it does fire the 'selectionchange' event on many of those, presumably because the
 
- // cursor is moving and that counts as the selection changing. The 'selectionchange' event is
 
- // fired at the document level only and doesn't directly indicate which element changed. We
 
- // set up just one event handler for the document and use 'activeElement' to determine which
 
- // element was changed.
 
- if (ko.utils.ieVersion < 10) {
 
-     var selectionChangeRegisteredName = ko.utils.domData.nextKey(),
 
-         selectionChangeHandlerName = ko.utils.domData.nextKey();
 
-     var selectionChangeHandler = function(event) {
 
-         var target = this.activeElement,
 
-             handler = target && ko.utils.domData.get(target, selectionChangeHandlerName);
 
-         if (handler) {
 
-             handler(event);
 
-         }
 
-     };
 
-     var registerForSelectionChangeEvent = function (element, handler) {
 
-         var ownerDoc = element.ownerDocument;
 
-         if (!ko.utils.domData.get(ownerDoc, selectionChangeRegisteredName)) {
 
-             ko.utils.domData.set(ownerDoc, selectionChangeRegisteredName, true);
 
-             ko.utils.registerEventHandler(ownerDoc, 'selectionchange', selectionChangeHandler);
 
-         }
 
-         ko.utils.domData.set(element, selectionChangeHandlerName, handler);
 
-     };
 
- }
 
- ko.bindingHandlers['textInput'] = {
 
-     'init': function (element, valueAccessor, allBindings) {
 
-         var previousElementValue = element.value,
 
-             timeoutHandle,
 
-             elementValueBeforeEvent;
 
-         var updateModel = function (event) {
 
-             clearTimeout(timeoutHandle);
 
-             elementValueBeforeEvent = timeoutHandle = undefined;
 
-             var elementValue = element.value;
 
-             if (previousElementValue !== elementValue) {
 
-                 // Provide a way for tests to know exactly which event was processed
 
-                 if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;
 
-                 previousElementValue = elementValue;
 
-                 ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);
 
-             }
 
-         };
 
-         var deferUpdateModel = function (event) {
 
-             if (!timeoutHandle) {
 
-                 // The elementValueBeforeEvent variable is set *only* during the brief gap between an
 
-                 // event firing and the updateModel function running. This allows us to ignore model
 
-                 // updates that are from the previous state of the element, usually due to techniques
 
-                 // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.
 
-                 elementValueBeforeEvent = element.value;
 
-                 var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;
 
-                 timeoutHandle = setTimeout(handler, 4);
 
-             }
 
-         };
 
-         var updateView = function () {
 
-             var modelValue = ko.utils.unwrapObservable(valueAccessor());
 
-             if (modelValue === null || modelValue === undefined) {
 
-                 modelValue = '';
 
-             }
 
-             if (elementValueBeforeEvent !== undefined && modelValue === elementValueBeforeEvent) {
 
-                 setTimeout(updateView, 4);
 
-                 return;
 
-             }
 
-             // Update the element only if the element and model are different. On some browsers, updating the value
 
-             // will move the cursor to the end of the input, which would be bad while the user is typing.
 
-             if (element.value !== modelValue) {
 
-                 previousElementValue = modelValue;  // Make sure we ignore events (propertychange) that result from updating the value
 
-                 element.value = modelValue;
 
-             }
 
-         };
 
-         var onEvent = function (event, handler) {
 
-             ko.utils.registerEventHandler(element, event, handler);
 
-         };
 
-         if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
 
-             // Provide a way for tests to specify exactly which events are bound
 
-             ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], function(eventName) {
 
-                 if (eventName.slice(0,5) == 'after') {
 
-                     onEvent(eventName.slice(5), deferUpdateModel);
 
-                 } else {
 
-                     onEvent(eventName, updateModel);
 
-                 }
 
-             });
 
-         } else {
 
-             if (ko.utils.ieVersion < 10) {
 
-                 // Internet Explorer <= 8 doesn't support the 'input' event, but does include 'propertychange' that fires whenever
 
-                 // any property of an element changes. Unlike 'input', it also fires if a property is changed from JavaScript code,
 
-                 // but that's an acceptable compromise for this binding. IE 9 does support 'input', but since it doesn't fire it
 
-                 // when using autocomplete, we'll use 'propertychange' for it also.
 
-                 onEvent('propertychange', function(event) {
 
-                     if (event.propertyName === 'value') {
 
-                         updateModel(event);
 
-                     }
 
-                 });
 
-                 if (ko.utils.ieVersion == 8) {
 
-                     // IE 8 has a bug where it fails to fire 'propertychange' on the first update following a value change from
 
-                     // JavaScript code. It also doesn't fire if you clear the entire value. To fix this, we bind to the following
 
-                     // events too.
 
-                     onEvent('keyup', updateModel);      // A single keystoke
 
-                     onEvent('keydown', updateModel);    // The first character when a key is held down
 
-                 }
 
-                 if (ko.utils.ieVersion >= 8) {
 
-                     // Internet Explorer 9 doesn't fire the 'input' event when deleting text, including using
 
-                     // the backspace, delete, or ctrl-x keys, clicking the 'x' to clear the input, dragging text
 
-                     // out of the field, and cutting or deleting text using the context menu. 'selectionchange'
 
-                     // can detect all of those except dragging text out of the field, for which we use 'dragend'.
 
-                     // These are also needed in IE8 because of the bug described above.
 
-                     registerForSelectionChangeEvent(element, updateModel);  // 'selectionchange' covers cut, paste, drop, delete, etc.
 
-                     onEvent('dragend', deferUpdateModel);
 
-                 }
 
-             } else {
 
-                 // All other supported browsers support the 'input' event, which fires whenever the content of the element is changed
 
-                 // through the user interface.
 
-                 onEvent('input', updateModel);
 
-                 if (safariVersion < 5 && ko.utils.tagNameLower(element) === "textarea") {
 
-                     // Safari <5 doesn't fire the 'input' event for <textarea> elements (it does fire 'textInput'
 
-                     // but only when typing). So we'll just catch as much as we can with keydown, cut, and paste.
 
-                     onEvent('keydown', deferUpdateModel);
 
-                     onEvent('paste', deferUpdateModel);
 
-                     onEvent('cut', deferUpdateModel);
 
-                 } else if (operaVersion < 11) {
 
-                     // Opera 10 doesn't always fire the 'input' event for cut, paste, undo & drop operations.
 
-                     // We can try to catch some of those using 'keydown'.
 
-                     onEvent('keydown', deferUpdateModel);
 
-                 } else if (firefoxVersion < 4.0) {
 
-                     // Firefox <= 3.6 doesn't fire the 'input' event when text is filled in through autocomplete
 
-                     onEvent('DOMAutoComplete', updateModel);
 
-                     // Firefox <=3.5 doesn't fire the 'input' event when text is dropped into the input.
 
-                     onEvent('dragdrop', updateModel);       // <3.5
 
-                     onEvent('drop', updateModel);           // 3.5
 
-                 }
 
-             }
 
-         }
 
-         // Bind to the change event so that we can catch programmatic updates of the value that fire this event.
 
-         onEvent('change', updateModel);
 
-         ko.computed(updateView, null, { disposeWhenNodeIsRemoved: element });
 
-     }
 
- };
 
- ko.expressionRewriting.twoWayBindings['textInput'] = true;
 
- // textinput is an alias for textInput
 
- ko.bindingHandlers['textinput'] = {
 
-     // preprocess is the only way to set up a full alias
 
-     'preprocess': function (value, name, addBinding) {
 
-         addBinding('textInput', value);
 
-     }
 
- };
 
- })();ko.bindingHandlers['uniqueName'] = {
 
-     'init': function (element, valueAccessor) {
 
-         if (valueAccessor()) {
 
-             var name = "ko_unique_" + (++ko.bindingHandlers['uniqueName'].currentIndex);
 
-             ko.utils.setElementName(element, name);
 
-         }
 
-     }
 
- };
 
- ko.bindingHandlers['uniqueName'].currentIndex = 0;
 
- ko.bindingHandlers['value'] = {
 
-     'after': ['options', 'foreach'],
 
-     'init': function (element, valueAccessor, allBindings) {
 
-         // If the value binding is placed on a radio/checkbox, then just pass through to checkedValue and quit
 
-         if (element.tagName.toLowerCase() == "input" && (element.type == "checkbox" || element.type == "radio")) {
 
-             ko.applyBindingAccessorsToNode(element, { 'checkedValue': valueAccessor });
 
-             return;
 
-         }
 
-         // Always catch "change" event; possibly other events too if asked
 
-         var eventsToCatch = ["change"];
 
-         var requestedEventsToCatch = allBindings.get("valueUpdate");
 
-         var propertyChangedFired = false;
 
-         var elementValueBeforeEvent = null;
 
-         if (requestedEventsToCatch) {
 
-             if (typeof requestedEventsToCatch == "string") // Allow both individual event names, and arrays of event names
 
-                 requestedEventsToCatch = [requestedEventsToCatch];
 
-             ko.utils.arrayPushAll(eventsToCatch, requestedEventsToCatch);
 
-             eventsToCatch = ko.utils.arrayGetDistinctValues(eventsToCatch);
 
-         }
 
-         var valueUpdateHandler = function() {
 
-             elementValueBeforeEvent = null;
 
-             propertyChangedFired = false;
 
-             var modelValue = valueAccessor();
 
-             var elementValue = ko.selectExtensions.readValue(element);
 
-             ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
 
-         }
 
-         // Workaround for https://github.com/SteveSanderson/knockout/issues/122
 
-         // IE doesn't fire "change" events on textboxes if the user selects a value from its autocomplete list
 
-         var ieAutoCompleteHackNeeded = ko.utils.ieVersion && element.tagName.toLowerCase() == "input" && element.type == "text"
 
-                                        && element.autocomplete != "off" && (!element.form || element.form.autocomplete != "off");
 
-         if (ieAutoCompleteHackNeeded && ko.utils.arrayIndexOf(eventsToCatch, "propertychange") == -1) {
 
-             ko.utils.registerEventHandler(element, "propertychange", function () { propertyChangedFired = true });
 
-             ko.utils.registerEventHandler(element, "focus", function () { propertyChangedFired = false });
 
-             ko.utils.registerEventHandler(element, "blur", function() {
 
-                 if (propertyChangedFired) {
 
-                     valueUpdateHandler();
 
-                 }
 
-             });
 
-         }
 
-         ko.utils.arrayForEach(eventsToCatch, function(eventName) {
 
-             // The syntax "after<eventname>" means "run the handler asynchronously after the event"
 
-             // This is useful, for example, to catch "keydown" events after the browser has updated the control
 
-             // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
 
-             var handler = valueUpdateHandler;
 
-             if (ko.utils.stringStartsWith(eventName, "after")) {
 
-                 handler = function() {
 
-                     // The elementValueBeforeEvent variable is non-null *only* during the brief gap between
 
-                     // a keyX event firing and the valueUpdateHandler running, which is scheduled to happen
 
-                     // at the earliest asynchronous opportunity. We store this temporary information so that
 
-                     // if, between keyX and valueUpdateHandler, the underlying model value changes separately,
 
-                     // we can overwrite that model value change with the value the user just typed. Otherwise,
 
-                     // techniques like rateLimit can trigger model changes at critical moments that will
 
-                     // override the user's inputs, causing keystrokes to be lost.
 
-                     elementValueBeforeEvent = ko.selectExtensions.readValue(element);
 
-                     setTimeout(valueUpdateHandler, 0);
 
-                 };
 
-                 eventName = eventName.substring("after".length);
 
-             }
 
-             ko.utils.registerEventHandler(element, eventName, handler);
 
-         });
 
-         var updateFromModel = function () {
 
-             var newValue = ko.utils.unwrapObservable(valueAccessor());
 
-             var elementValue = ko.selectExtensions.readValue(element);
 
-             if (elementValueBeforeEvent !== null && newValue === elementValueBeforeEvent) {
 
-                 setTimeout(updateFromModel, 0);
 
-                 return;
 
-             }
 
-             var valueHasChanged = (newValue !== elementValue);
 
-             if (valueHasChanged) {
 
-                 if (ko.utils.tagNameLower(element) === "select") {
 
-                     var allowUnset = allBindings.get('valueAllowUnset');
 
-                     var applyValueAction = function () {
 
-                         ko.selectExtensions.writeValue(element, newValue, allowUnset);
 
-                     };
 
-                     applyValueAction();
 
-                     if (!allowUnset && newValue !== ko.selectExtensions.readValue(element)) {
 
-                         // If you try to set a model value that can't be represented in an already-populated dropdown, reject that change,
 
-                         // because you're not allowed to have a model value that disagrees with a visible UI selection.
 
-                         ko.dependencyDetection.ignore(ko.utils.triggerEvent, null, [element, "change"]);
 
-                     } else {
 
-                         // Workaround for IE6 bug: It won't reliably apply values to SELECT nodes during the same execution thread
 
-                         // right after you've changed the set of OPTION nodes on it. So for that node type, we'll schedule a second thread
 
-                         // to apply the value as well.
 
-                         setTimeout(applyValueAction, 0);
 
-                     }
 
-                 } else {
 
-                     ko.selectExtensions.writeValue(element, newValue);
 
-                 }
 
-             }
 
-         };
 
-         ko.computed(updateFromModel, null, { disposeWhenNodeIsRemoved: element });
 
-     },
 
-     'update': function() {} // Keep for backwards compatibility with code that may have wrapped value binding
 
- };
 
- ko.expressionRewriting.twoWayBindings['value'] = true;
 
- ko.bindingHandlers['visible'] = {
 
-     'update': function (element, valueAccessor) {
 
-         var value = ko.utils.unwrapObservable(valueAccessor());
 
-         var isCurrentlyVisible = !(element.style.display == "none");
 
-         if (value && !isCurrentlyVisible)
 
-             element.style.display = "";
 
-         else if ((!value) && isCurrentlyVisible)
 
-             element.style.display = "none";
 
-     }
 
- };
 
- // 'click' is just a shorthand for the usual full-length event:{click:handler}
 
- makeEventHandlerShortcut('click');
 
- // If you want to make a custom template engine,
 
- //
 
- // [1] Inherit from this class (like ko.nativeTemplateEngine does)
 
- // [2] Override 'renderTemplateSource', supplying a function with this signature:
 
- //
 
- //        function (templateSource, bindingContext, options) {
 
- //            // - templateSource.text() is the text of the template you should render
 
- //            // - bindingContext.$data is the data you should pass into the template
 
- //            //   - you might also want to make bindingContext.$parent, bindingContext.$parents,
 
- //            //     and bindingContext.$root available in the template too
 
- //            // - options gives you access to any other properties set on "data-bind: { template: options }"
 
- //            // - templateDocument is the document object of the template
 
- //            //
 
- //            // 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, templateDocument) {
 
-     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, templateDocument);
 
- };
 
- ko.templateEngine.prototype['isTemplateRewritten'] = function (template, templateDocument) {
 
-     // Skip rewriting if requested
 
-     if (this['allowTemplateRewriting'] === false)
 
-         return true;
 
-     return this['makeTemplateSource'](template, templateDocument)['data']("isRewritten");
 
- };
 
- ko.templateEngine.prototype['rewriteTemplate'] = function (template, rewriterCallback, templateDocument) {
 
-     var templateSource = this['makeTemplateSource'](template, templateDocument);
 
-     var rewritten = rewriterCallback(templateSource['text']());
 
-     templateSource['text'](rewritten);
 
-     templateSource['data']("isRewritten", true);
 
- };
 
- ko.exportSymbol('templateEngine', ko.templateEngine);
 
- ko.templateRewriting = (function () {
 
-     var memoizeDataBindingAttributeSyntaxRegex = /(<([a-z]+\d*)(?:\s+(?!data-bind\s*=\s*)[a-z0-9\-]+(?:=(?:\"[^\"]*\"|\'[^\']*\'|[^>]*))?)*\s+)data-bind\s*=\s*(["'])([\s\S]*?)\3/gi;
 
-     var memoizeVirtualContainerBindingSyntaxRegex = /<!--\s*ko\b\s*([\s\S]*?)\s*-->/g;
 
-     function validateDataBindValuesForRewriting(keyValueArray) {
 
-         var allValidators = ko.expressionRewriting.bindingRewriteValidators;
 
-         for (var i = 0; i < keyValueArray.length; i++) {
 
-             var key = keyValueArray[i]['key'];
 
-             if (allValidators.hasOwnProperty(key)) {
 
-                 var validator = allValidators[key];
 
-                 if (typeof validator === "function") {
 
-                     var possibleErrorMessage = validator(keyValueArray[i]['value']);
 
-                     if (possibleErrorMessage)
 
-                         throw new Error(possibleErrorMessage);
 
-                 } else if (!validator) {
 
-                     throw new Error("This template engine does not support the '" + key + "' binding within its templates");
 
-                 }
 
-             }
 
-         }
 
-     }
 
-     function constructMemoizedTagReplacement(dataBindAttributeValue, tagToRetain, nodeName, templateEngine) {
 
-         var dataBindKeyValueArray = ko.expressionRewriting.parseObjectLiteral(dataBindAttributeValue);
 
-         validateDataBindValuesForRewriting(dataBindKeyValueArray);
 
-         var rewrittenDataBindAttributeValue = ko.expressionRewriting.preProcessBindings(dataBindKeyValueArray, {'valueAccessors':true});
 
-         // For no obvious reason, Opera fails to evaluate rewrittenDataBindAttributeValue unless it's wrapped in an additional
 
-         // anonymous function, even though Opera's built-in debugger can evaluate it anyway. No other browser requires this
 
-         // extra indirection.
 
-         var applyBindingsToNextSiblingScript =
 
-             "ko.__tr_ambtns(function($context,$element){return(function(){return{ " + rewrittenDataBindAttributeValue + " } })()},'" + nodeName.toLowerCase() + "')";
 
-         return templateEngine['createJavaScriptEvaluatorBlock'](applyBindingsToNextSiblingScript) + tagToRetain;
 
-     }
 
-     return {
 
-         ensureTemplateIsRewritten: function (template, templateEngine, templateDocument) {
 
-             if (!templateEngine['isTemplateRewritten'](template, templateDocument))
 
-                 templateEngine['rewriteTemplate'](template, function (htmlString) {
 
-                     return ko.templateRewriting.memoizeBindingAttributeSyntax(htmlString, templateEngine);
 
-                 }, templateDocument);
 
-         },
 
-         memoizeBindingAttributeSyntax: function (htmlString, templateEngine) {
 
-             return htmlString.replace(memoizeDataBindingAttributeSyntaxRegex, function () {
 
-                 return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[4], /* tagToRetain: */ arguments[1], /* nodeName: */ arguments[2], templateEngine);
 
-             }).replace(memoizeVirtualContainerBindingSyntaxRegex, function() {
 
-                 return constructMemoizedTagReplacement(/* dataBindAttributeValue: */ arguments[1], /* tagToRetain: */ "<!-- ko -->", /* nodeName: */ "#comment", templateEngine);
 
-             });
 
-         },
 
-         applyMemoizedBindingsToNextSibling: function (bindings, nodeName) {
 
-             return ko.memoization.memoize(function (domNode, bindingContext) {
 
-                 var nodeToBind = domNode.nextSibling;
 
-                 if (nodeToBind && nodeToBind.nodeName.toLowerCase() === nodeName) {
 
-                     ko.applyBindingAccessorsToNode(nodeToBind, bindings, bindingContext);
 
-                 }
 
-             });
 
-         }
 
-     }
 
- })();
 
- // Exported only because it has to be referenced by string lookup from within rewritten template
 
- ko.exportSymbol('__tr_ambtns', ko.templateRewriting.applyMemoizedBindingsToNextSibling);
 
- (function() {
 
-     // A template source represents a read/write way of accessing a template. This is to eliminate the need for template loading/saving
 
-     // logic to be duplicated in every template engine (and means they can all work with anonymous templates, etc.)
 
-     //
 
-     // Two are provided by default:
 
-     //  1. ko.templateSources.domElement       - reads/writes the text content of an arbitrary DOM element
 
-     //  2. ko.templateSources.anonymousElement - uses ko.utils.domData to read/write text *associated* with the DOM element, but
 
-     //                                           without reading/writing the actual element text content, since it will be overwritten
 
-     //                                           with the rendered template output.
 
-     // You can implement your own template source if you want to fetch/store templates somewhere other than in DOM elements.
 
-     // Template sources need to have the following functions:
 
-     //   text() 			- returns the template text from your storage location
 
-     //   text(value)		- writes the supplied template text to your storage location
 
-     //   data(key)			- reads values stored using data(key, value) - see below
 
-     //   data(key, value)	- associates "value" with this template and the key "key". Is used to store information like "isRewritten".
 
-     //
 
-     // Optionally, template sources can also have the following functions:
 
-     //   nodes()            - returns a DOM element containing the nodes of this template, where available
 
-     //   nodes(value)       - writes the given DOM element to your storage location
 
-     // If a DOM element is available for a given template source, template engines are encouraged to use it in preference over text()
 
-     // for improved speed. However, all templateSources must supply text() even if they don't supply nodes().
 
-     //
 
-     // Once you've implemented a templateSource, make your template engine use it by subclassing whatever template engine you were
 
-     // using and overriding "makeTemplateSource" to return an instance of your custom template source.
 
-     ko.templateSources = {};
 
-     // ---- ko.templateSources.domElement -----
 
-     ko.templateSources.domElement = function(element) {
 
-         this.domElement = element;
 
-     }
 
-     ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {
 
-         var tagNameLower = ko.utils.tagNameLower(this.domElement),
 
-             elemContentsProperty = tagNameLower === "script" ? "text"
 
-                                  : tagNameLower === "textarea" ? "value"
 
-                                  : "innerHTML";
 
-         if (arguments.length == 0) {
 
-             return this.domElement[elemContentsProperty];
 
-         } else {
 
-             var valueToWrite = arguments[0];
 
-             if (elemContentsProperty === "innerHTML")
 
-                 ko.utils.setHtml(this.domElement, valueToWrite);
 
-             else
 
-                 this.domElement[elemContentsProperty] = valueToWrite;
 
-         }
 
-     };
 
-     var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
 
-     ko.templateSources.domElement.prototype['data'] = function(key /*, valueToWrite */) {
 
-         if (arguments.length === 1) {
 
-             return ko.utils.domData.get(this.domElement, dataDomDataPrefix + key);
 
-         } else {
 
-             ko.utils.domData.set(this.domElement, dataDomDataPrefix + key, arguments[1]);
 
-         }
 
-     };
 
-     // ---- ko.templateSources.anonymousTemplate -----
 
-     // Anonymous templates are normally saved/retrieved as DOM nodes through "nodes".
 
-     // For compatibility, you can also read "text"; it will be serialized from the nodes on demand.
 
-     // Writing to "text" is still supported, but then the template data will not be available as DOM nodes.
 
-     var anonymousTemplatesDomDataKey = ko.utils.domData.nextKey();
 
-     ko.templateSources.anonymousTemplate = function(element) {
 
-         this.domElement = element;
 
-     }
 
-     ko.templateSources.anonymousTemplate.prototype = new ko.templateSources.domElement();
 
-     ko.templateSources.anonymousTemplate.prototype.constructor = ko.templateSources.anonymousTemplate;
 
-     ko.templateSources.anonymousTemplate.prototype['text'] = function(/* valueToWrite */) {
 
-         if (arguments.length == 0) {
 
-             var templateData = ko.utils.domData.get(this.domElement, anonymousTemplatesDomDataKey) || {};
 
-             if (templateData.textData === undefined && templateData.containerData)
 
-                 templateData.textData = templateData.containerData.innerHTML;
 
-             return templateData.textData;
 
-         } else {
 
-             var valueToWrite = arguments[0];
 
-             ko.utils.domData.set(this.domElement, anonymousTemplatesDomDataKey, {textData: valueToWrite});
 
-         }
 
-     };
 
-     ko.templateSources.domElement.prototype['nodes'] = function(/* valueToWrite */) {
 
-         if (arguments.length == 0) {
 
-             var templateData = ko.utils.domData.get(this.domElement, anonymousTemplatesDomDataKey) || {};
 
-             return templateData.containerData;
 
-         } else {
 
-             var valueToWrite = arguments[0];
 
-             ko.utils.domData.set(this.domElement, anonymousTemplatesDomDataKey, {containerData: valueToWrite});
 
-         }
 
-     };
 
-     ko.exportSymbol('templateSources', ko.templateSources);
 
-     ko.exportSymbol('templateSources.domElement', ko.templateSources.domElement);
 
-     ko.exportSymbol('templateSources.anonymousTemplate', ko.templateSources.anonymousTemplate);
 
- })();
 
- (function () {
 
-     var _templateEngine;
 
-     ko.setTemplateEngine = function (templateEngine) {
 
-         if ((templateEngine != undefined) && !(templateEngine instanceof ko.templateEngine))
 
-             throw new Error("templateEngine must inherit from ko.templateEngine");
 
-         _templateEngine = templateEngine;
 
-     }
 
-     function invokeForEachNodeInContinuousRange(firstNode, lastNode, action) {
 
-         var node, nextInQueue = firstNode, firstOutOfRangeNode = ko.virtualElements.nextSibling(lastNode);
 
-         while (nextInQueue && ((node = nextInQueue) !== firstOutOfRangeNode)) {
 
-             nextInQueue = ko.virtualElements.nextSibling(node);
 
-             action(node, nextInQueue);
 
-         }
 
-     }
 
-     function activateBindingsOnContinuousNodeArray(continuousNodeArray, bindingContext) {
 
-         // To be used on any nodes that have been rendered by a template and have been inserted into some parent element
 
-         // Walks through continuousNodeArray (which *must* be continuous, i.e., an uninterrupted sequence of sibling nodes, because
 
-         // the algorithm for walking them relies on this), and for each top-level item in the virtual-element sense,
 
-         // (1) Does a regular "applyBindings" to associate bindingContext with this node and to activate any non-memoized bindings
 
-         // (2) Unmemoizes any memos in the DOM subtree (e.g., to activate bindings that had been memoized during template rewriting)
 
-         if (continuousNodeArray.length) {
 
-             var firstNode = continuousNodeArray[0],
 
-                 lastNode = continuousNodeArray[continuousNodeArray.length - 1],
 
-                 parentNode = firstNode.parentNode,
 
-                 provider = ko.bindingProvider['instance'],
 
-                 preprocessNode = provider['preprocessNode'];
 
-             if (preprocessNode) {
 
-                 invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node, nextNodeInRange) {
 
-                     var nodePreviousSibling = node.previousSibling;
 
-                     var newNodes = preprocessNode.call(provider, node);
 
-                     if (newNodes) {
 
-                         if (node === firstNode)
 
-                             firstNode = newNodes[0] || nextNodeInRange;
 
-                         if (node === lastNode)
 
-                             lastNode = newNodes[newNodes.length - 1] || nodePreviousSibling;
 
-                     }
 
-                 });
 
-                 // Because preprocessNode can change the nodes, including the first and last nodes, update continuousNodeArray to match.
 
-                 // We need the full set, including inner nodes, because the unmemoize step might remove the first node (and so the real
 
-                 // first node needs to be in the array).
 
-                 continuousNodeArray.length = 0;
 
-                 if (!firstNode) { // preprocessNode might have removed all the nodes, in which case there's nothing left to do
 
-                     return;
 
-                 }
 
-                 if (firstNode === lastNode) {
 
-                     continuousNodeArray.push(firstNode);
 
-                 } else {
 
-                     continuousNodeArray.push(firstNode, lastNode);
 
-                     ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
 
-                 }
 
-             }
 
-             // Need to applyBindings *before* unmemoziation, because unmemoization might introduce extra nodes (that we don't want to re-bind)
 
-             // whereas a regular applyBindings won't introduce new memoized nodes
 
-             invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
 
-                 if (node.nodeType === 1 || node.nodeType === 8)
 
-                     ko.applyBindings(bindingContext, node);
 
-             });
 
-             invokeForEachNodeInContinuousRange(firstNode, lastNode, function(node) {
 
-                 if (node.nodeType === 1 || node.nodeType === 8)
 
-                     ko.memoization.unmemoizeDomNodeAndDescendants(node, [bindingContext]);
 
-             });
 
-             // Make sure any changes done by applyBindings or unmemoize are reflected in the array
 
-             ko.utils.fixUpContinuousNodeArray(continuousNodeArray, parentNode);
 
-         }
 
-     }
 
-     function getFirstNodeFromPossibleArray(nodeOrNodeArray) {
 
-         return nodeOrNodeArray.nodeType ? nodeOrNodeArray
 
-                                         : nodeOrNodeArray.length > 0 ? nodeOrNodeArray[0]
 
-                                         : null;
 
-     }
 
-     function executeTemplate(targetNodeOrNodeArray, renderMode, template, bindingContext, options) {
 
-         options = options || {};
 
-         var firstTargetNode = targetNodeOrNodeArray && getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
 
-         var templateDocument = (firstTargetNode || template || {}).ownerDocument;
 
-         var templateEngineToUse = (options['templateEngine'] || _templateEngine);
 
-         ko.templateRewriting.ensureTemplateIsRewritten(template, templateEngineToUse, templateDocument);
 
-         var renderedNodesArray = templateEngineToUse['renderTemplate'](template, bindingContext, options, templateDocument);
 
-         // Loosely check result is an array of DOM nodes
 
-         if ((typeof renderedNodesArray.length != "number") || (renderedNodesArray.length > 0 && typeof renderedNodesArray[0].nodeType != "number"))
 
-             throw new Error("Template engine must return an array of DOM nodes");
 
-         var haveAddedNodesToParent = false;
 
-         switch (renderMode) {
 
-             case "replaceChildren":
 
-                 ko.virtualElements.setDomNodeChildren(targetNodeOrNodeArray, renderedNodesArray);
 
-                 haveAddedNodesToParent = true;
 
-                 break;
 
-             case "replaceNode":
 
-                 ko.utils.replaceDomNodes(targetNodeOrNodeArray, renderedNodesArray);
 
-                 haveAddedNodesToParent = true;
 
-                 break;
 
-             case "ignoreTargetNode": break;
 
-             default:
 
-                 throw new Error("Unknown renderMode: " + renderMode);
 
-         }
 
-         if (haveAddedNodesToParent) {
 
-             activateBindingsOnContinuousNodeArray(renderedNodesArray, bindingContext);
 
-             if (options['afterRender'])
 
-                 ko.dependencyDetection.ignore(options['afterRender'], null, [renderedNodesArray, bindingContext['$data']]);
 
-         }
 
-         return renderedNodesArray;
 
-     }
 
-     function resolveTemplateName(template, data, context) {
 
-         // The template can be specified as:
 
-         if (ko.isObservable(template)) {
 
-             // 1. An observable, with string value
 
-             return template();
 
-         } else if (typeof template === 'function') {
 
-             // 2. A function of (data, context) returning a string
 
-             return template(data, context);
 
-         } else {
 
-             // 3. A string
 
-             return template;
 
-         }
 
-     }
 
-     ko.renderTemplate = function (template, dataOrBindingContext, options, targetNodeOrNodeArray, renderMode) {
 
-         options = options || {};
 
-         if ((options['templateEngine'] || _templateEngine) == undefined)
 
-             throw new Error("Set a template engine before calling renderTemplate");
 
-         renderMode = renderMode || "replaceChildren";
 
-         if (targetNodeOrNodeArray) {
 
-             var firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
 
-             var whenToDispose = function () { return (!firstTargetNode) || !ko.utils.domNodeIsAttachedToDocument(firstTargetNode); }; // Passive disposal (on next evaluation)
 
-             var activelyDisposeWhenNodeIsRemoved = (firstTargetNode && renderMode == "replaceNode") ? firstTargetNode.parentNode : firstTargetNode;
 
-             return ko.dependentObservable( // So the DOM is automatically updated when any dependency changes
 
-                 function () {
 
-                     // Ensure we've got a proper binding context to work with
 
-                     var bindingContext = (dataOrBindingContext && (dataOrBindingContext instanceof ko.bindingContext))
 
-                         ? dataOrBindingContext
 
-                         : new ko.bindingContext(ko.utils.unwrapObservable(dataOrBindingContext));
 
-                     var templateName = resolveTemplateName(template, bindingContext['$data'], bindingContext),
 
-                         renderedNodesArray = executeTemplate(targetNodeOrNodeArray, renderMode, templateName, bindingContext, options);
 
-                     if (renderMode == "replaceNode") {
 
-                         targetNodeOrNodeArray = renderedNodesArray;
 
-                         firstTargetNode = getFirstNodeFromPossibleArray(targetNodeOrNodeArray);
 
-                     }
 
-                 },
 
-                 null,
 
-                 { disposeWhen: whenToDispose, disposeWhenNodeIsRemoved: activelyDisposeWhenNodeIsRemoved }
 
-             );
 
-         } else {
 
-             // We don't yet have a DOM node to evaluate, so use a memo and render the template later when there is a DOM node
 
-             return ko.memoization.memoize(function (domNode) {
 
-                 ko.renderTemplate(template, dataOrBindingContext, options, domNode, "replaceNode");
 
-             });
 
-         }
 
-     };
 
-     ko.renderTemplateForEach = function (template, arrayOrObservableArray, options, targetNode, parentBindingContext) {
 
-         // Since setDomNodeChildrenFromArrayMapping always calls executeTemplateForArrayItem and then
 
-         // activateBindingsCallback for added items, we can store the binding context in the former to use in the latter.
 
-         var arrayItemContext;
 
-         // This will be called by setDomNodeChildrenFromArrayMapping to get the nodes to add to targetNode
 
-         var executeTemplateForArrayItem = function (arrayValue, index) {
 
-             // Support selecting template as a function of the data being rendered
 
-             arrayItemContext = parentBindingContext['createChildContext'](arrayValue, options['as'], function(context) {
 
-                 context['$index'] = index;
 
-             });
 
-             var templateName = resolveTemplateName(template, arrayValue, arrayItemContext);
 
-             return executeTemplate(null, "ignoreTargetNode", templateName, arrayItemContext, options);
 
-         }
 
-         // This will be called whenever setDomNodeChildrenFromArrayMapping has added nodes to targetNode
 
-         var activateBindingsCallback = function(arrayValue, addedNodesArray, index) {
 
-             activateBindingsOnContinuousNodeArray(addedNodesArray, arrayItemContext);
 
-             if (options['afterRender'])
 
-                 options['afterRender'](addedNodesArray, arrayValue);
 
-             // release the "cache" variable, so that it can be collected by
 
-             // the GC when its value isn't used from within the bindings anymore.
 
-             arrayItemContext = null;
 
-         };
 
-         return ko.dependentObservable(function () {
 
-             var unwrappedArray = ko.utils.unwrapObservable(arrayOrObservableArray) || [];
 
-             if (typeof unwrappedArray.length == "undefined") // Coerce single value into array
 
-                 unwrappedArray = [unwrappedArray];
 
-             // Filter out any entries marked as destroyed
 
-             var filteredArray = ko.utils.arrayFilter(unwrappedArray, function(item) {
 
-                 return options['includeDestroyed'] || item === undefined || item === null || !ko.utils.unwrapObservable(item['_destroy']);
 
-             });
 
-             // Call setDomNodeChildrenFromArrayMapping, ignoring any observables unwrapped within (most likely from a callback function).
 
-             // If the array items are observables, though, they will be unwrapped in executeTemplateForArrayItem and managed within setDomNodeChildrenFromArrayMapping.
 
-             ko.dependencyDetection.ignore(ko.utils.setDomNodeChildrenFromArrayMapping, null, [targetNode, filteredArray, executeTemplateForArrayItem, options, activateBindingsCallback]);
 
-         }, null, { disposeWhenNodeIsRemoved: targetNode });
 
-     };
 
-     var templateComputedDomDataKey = ko.utils.domData.nextKey();
 
-     function disposeOldComputedAndStoreNewOne(element, newComputed) {
 
-         var oldComputed = ko.utils.domData.get(element, templateComputedDomDataKey);
 
-         if (oldComputed && (typeof(oldComputed.dispose) == 'function'))
 
-             oldComputed.dispose();
 
-         ko.utils.domData.set(element, templateComputedDomDataKey, (newComputed && newComputed.isActive()) ? newComputed : undefined);
 
-     }
 
-     ko.bindingHandlers['template'] = {
 
-         'init': function(element, valueAccessor) {
 
-             // Support anonymous templates
 
-             var bindingValue = ko.utils.unwrapObservable(valueAccessor());
 
-             if (typeof bindingValue == "string" || bindingValue['name']) {
 
-                 // It's a named template - clear the element
 
-                 ko.virtualElements.emptyNode(element);
 
-             } else if ('nodes' in bindingValue) {
 
-                 // We've been given an array of DOM nodes. Save them as the template source.
 
-                 // There is no known use case for the node array being an observable array (if the output
 
-                 // varies, put that behavior *into* your template - that's what templates are for), and
 
-                 // the implementation would be a mess, so assert that it's not observable.
 
-                 var nodes = bindingValue['nodes'] || [];
 
-                 if (ko.isObservable(nodes)) {
 
-                     throw new Error('The "nodes" option must be a plain, non-observable array.');
 
-                 }
 
-                 var container = ko.utils.moveCleanedNodesToContainerElement(nodes); // This also removes the nodes from their current parent
 
-                 new ko.templateSources.anonymousTemplate(element)['nodes'](container);
 
-             } else {
 
-                 // It's an anonymous template - store the element contents, then clear the element
 
-                 var templateNodes = ko.virtualElements.childNodes(element),
 
-                     container = ko.utils.moveCleanedNodesToContainerElement(templateNodes); // This also removes the nodes from their current parent
 
-                 new ko.templateSources.anonymousTemplate(element)['nodes'](container);
 
-             }
 
-             return { 'controlsDescendantBindings': true };
 
-         },
 
-         'update': function (element, valueAccessor, allBindings, viewModel, bindingContext) {
 
-             var value = valueAccessor(),
 
-                 dataValue,
 
-                 options = ko.utils.unwrapObservable(value),
 
-                 shouldDisplay = true,
 
-                 templateComputed = null,
 
-                 templateName;
 
-             if (typeof options == "string") {
 
-                 templateName = value;
 
-                 options = {};
 
-             } else {
 
-                 templateName = options['name'];
 
-                 // Support "if"/"ifnot" conditions
 
-                 if ('if' in options)
 
-                     shouldDisplay = ko.utils.unwrapObservable(options['if']);
 
-                 if (shouldDisplay && 'ifnot' in options)
 
-                     shouldDisplay = !ko.utils.unwrapObservable(options['ifnot']);
 
-                 dataValue = ko.utils.unwrapObservable(options['data']);
 
-             }
 
-             if ('foreach' in options) {
 
-                 // Render once for each data point (treating data set as empty if shouldDisplay==false)
 
-                 var dataArray = (shouldDisplay && options['foreach']) || [];
 
-                 templateComputed = ko.renderTemplateForEach(templateName || element, dataArray, options, element, bindingContext);
 
-             } else if (!shouldDisplay) {
 
-                 ko.virtualElements.emptyNode(element);
 
-             } else {
 
-                 // Render once for this single data point (or use the viewModel if no data was provided)
 
-                 var innerBindingContext = ('data' in options) ?
 
-                     bindingContext['createChildContext'](dataValue, options['as']) :  // Given an explitit 'data' value, we create a child binding context for it
 
-                     bindingContext;                                                        // Given no explicit 'data' value, we retain the same binding context
 
-                 templateComputed = ko.renderTemplate(templateName || element, innerBindingContext, options, element);
 
-             }
 
-             // It only makes sense to have a single template computed per element (otherwise which one should have its output displayed?)
 
-             disposeOldComputedAndStoreNewOne(element, templateComputed);
 
-         }
 
-     };
 
-     // Anonymous templates can't be rewritten. Give a nice error message if you try to do it.
 
-     ko.expressionRewriting.bindingRewriteValidators['template'] = function(bindingValue) {
 
-         var parsedBindingValue = ko.expressionRewriting.parseObjectLiteral(bindingValue);
 
-         if ((parsedBindingValue.length == 1) && parsedBindingValue[0]['unknown'])
 
-             return null; // It looks like a string literal, not an object literal, so treat it as a named template (which is allowed for rewriting)
 
-         if (ko.expressionRewriting.keyValueArrayContainsKey(parsedBindingValue, "name"))
 
-             return null; // Named templates can be rewritten, so return "no error"
 
-         return "This template engine does not support anonymous templates nested within its templates";
 
-     };
 
-     ko.virtualElements.allowedBindings['template'] = true;
 
- })();
 
- ko.exportSymbol('setTemplateEngine', ko.setTemplateEngine);
 
- ko.exportSymbol('renderTemplate', ko.renderTemplate);
 
- // Go through the items that have been added and deleted and try to find matches between them.
 
- ko.utils.findMovesInArrayComparison = function (left, right, limitFailedCompares) {
 
-     if (left.length && right.length) {
 
-         var failedCompares, l, r, leftItem, rightItem;
 
-         for (failedCompares = l = 0; (!limitFailedCompares || failedCompares < limitFailedCompares) && (leftItem = left[l]); ++l) {
 
-             for (r = 0; rightItem = right[r]; ++r) {
 
-                 if (leftItem['value'] === rightItem['value']) {
 
-                     leftItem['moved'] = rightItem['index'];
 
-                     rightItem['moved'] = leftItem['index'];
 
-                     right.splice(r, 1);         // This item is marked as moved; so remove it from right list
 
-                     failedCompares = r = 0;     // Reset failed compares count because we're checking for consecutive failures
 
-                     break;
 
-                 }
 
-             }
 
-             failedCompares += r;
 
-         }
 
-     }
 
- };
 
- ko.utils.compareArrays = (function () {
 
-     var statusNotInOld = 'added', statusNotInNew = 'deleted';
 
-     // Simple calculation based on Levenshtein distance.
 
-     function compareArrays(oldArray, newArray, options) {
 
-         // For backward compatibility, if the third arg is actually a bool, interpret
 
-         // it as the old parameter 'dontLimitMoves'. Newer code should use { dontLimitMoves: true }.
 
-         options = (typeof options === 'boolean') ? { 'dontLimitMoves': options } : (options || {});
 
-         oldArray = oldArray || [];
 
-         newArray = newArray || [];
 
-         if (oldArray.length <= newArray.length)
 
-             return compareSmallArrayToBigArray(oldArray, newArray, statusNotInOld, statusNotInNew, options);
 
-         else
 
-             return compareSmallArrayToBigArray(newArray, oldArray, statusNotInNew, statusNotInOld, options);
 
-     }
 
-     function compareSmallArrayToBigArray(smlArray, bigArray, statusNotInSml, statusNotInBig, options) {
 
-         var myMin = Math.min,
 
-             myMax = Math.max,
 
-             editDistanceMatrix = [],
 
-             smlIndex, smlIndexMax = smlArray.length,
 
-             bigIndex, bigIndexMax = bigArray.length,
 
-             compareRange = (bigIndexMax - smlIndexMax) || 1,
 
-             maxDistance = smlIndexMax + bigIndexMax + 1,
 
-             thisRow, lastRow,
 
-             bigIndexMaxForRow, bigIndexMinForRow;
 
-         for (smlIndex = 0; smlIndex <= smlIndexMax; smlIndex++) {
 
-             lastRow = thisRow;
 
-             editDistanceMatrix.push(thisRow = []);
 
-             bigIndexMaxForRow = myMin(bigIndexMax, smlIndex + compareRange);
 
-             bigIndexMinForRow = myMax(0, smlIndex - 1);
 
-             for (bigIndex = bigIndexMinForRow; bigIndex <= bigIndexMaxForRow; bigIndex++) {
 
-                 if (!bigIndex)
 
-                     thisRow[bigIndex] = smlIndex + 1;
 
-                 else if (!smlIndex)  // Top row - transform empty array into new array via additions
 
-                     thisRow[bigIndex] = bigIndex + 1;
 
-                 else if (smlArray[smlIndex - 1] === bigArray[bigIndex - 1])
 
-                     thisRow[bigIndex] = lastRow[bigIndex - 1];                  // copy value (no edit)
 
-                 else {
 
-                     var northDistance = lastRow[bigIndex] || maxDistance;       // not in big (deletion)
 
-                     var westDistance = thisRow[bigIndex - 1] || maxDistance;    // not in small (addition)
 
-                     thisRow[bigIndex] = myMin(northDistance, westDistance) + 1;
 
-                 }
 
-             }
 
-         }
 
-         var editScript = [], meMinusOne, notInSml = [], notInBig = [];
 
-         for (smlIndex = smlIndexMax, bigIndex = bigIndexMax; smlIndex || bigIndex;) {
 
-             meMinusOne = editDistanceMatrix[smlIndex][bigIndex] - 1;
 
-             if (bigIndex && meMinusOne === editDistanceMatrix[smlIndex][bigIndex-1]) {
 
-                 notInSml.push(editScript[editScript.length] = {     // added
 
-                     'status': statusNotInSml,
 
-                     'value': bigArray[--bigIndex],
 
-                     'index': bigIndex });
 
-             } else if (smlIndex && meMinusOne === editDistanceMatrix[smlIndex - 1][bigIndex]) {
 
-                 notInBig.push(editScript[editScript.length] = {     // deleted
 
-                     'status': statusNotInBig,
 
-                     'value': smlArray[--smlIndex],
 
-                     'index': smlIndex });
 
-             } else {
 
-                 --bigIndex;
 
-                 --smlIndex;
 
-                 if (!options['sparse']) {
 
-                     editScript.push({
 
-                         'status': "retained",
 
-                         'value': bigArray[bigIndex] });
 
-                 }
 
-             }
 
-         }
 
-         // Set a limit on the number of consecutive non-matching comparisons; having it a multiple of
 
-         // smlIndexMax keeps the time complexity of this algorithm linear.
 
-         ko.utils.findMovesInArrayComparison(notInSml, notInBig, smlIndexMax * 10);
 
-         return editScript.reverse();
 
-     }
 
-     return compareArrays;
 
- })();
 
- ko.exportSymbol('utils.compareArrays', ko.utils.compareArrays);
 
- (function () {
 
-     // Objective:
 
-     // * Given an input array, a container DOM node, and a function from array elements to arrays of DOM nodes,
 
-     //   map the array elements to arrays of DOM nodes, concatenate together all these arrays, and use them to populate the container DOM node
 
-     // * Next time we're given the same combination of things (with the array possibly having mutated), update the container DOM node
 
-     //   so that its children is again the concatenation of the mappings of the array elements, but don't re-map any array elements that we
 
-     //   previously mapped - retain those nodes, and just insert/delete other ones
 
-     // "callbackAfterAddingNodes" will be invoked after any "mapping"-generated nodes are inserted into the container node
 
-     // You can use this, for example, to activate bindings on those nodes.
 
-     function mapNodeAndRefreshWhenChanged(containerNode, mapping, valueToMap, callbackAfterAddingNodes, index) {
 
-         // Map this array value inside a dependentObservable so we re-map when any dependency changes
 
-         var mappedNodes = [];
 
-         var dependentObservable = ko.dependentObservable(function() {
 
-             var newMappedNodes = mapping(valueToMap, index, ko.utils.fixUpContinuousNodeArray(mappedNodes, containerNode)) || [];
 
-             // On subsequent evaluations, just replace the previously-inserted DOM nodes
 
-             if (mappedNodes.length > 0) {
 
-                 ko.utils.replaceDomNodes(mappedNodes, newMappedNodes);
 
-                 if (callbackAfterAddingNodes)
 
-                     ko.dependencyDetection.ignore(callbackAfterAddingNodes, null, [valueToMap, newMappedNodes, index]);
 
-             }
 
-             // Replace the contents of the mappedNodes array, thereby updating the record
 
-             // of which nodes would be deleted if valueToMap was itself later removed
 
-             mappedNodes.length = 0;
 
-             ko.utils.arrayPushAll(mappedNodes, newMappedNodes);
 
-         }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: function() { return !ko.utils.anyDomNodeIsAttachedToDocument(mappedNodes); } });
 
-         return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };
 
-     }
 
-     var lastMappingResultDomDataKey = ko.utils.domData.nextKey();
 
-     ko.utils.setDomNodeChildrenFromArrayMapping = function (domNode, array, mapping, options, callbackAfterAddingNodes) {
 
-         // Compare the provided array against the previous one
 
-         array = array || [];
 
-         options = options || {};
 
-         var isFirstExecution = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) === undefined;
 
-         var lastMappingResult = ko.utils.domData.get(domNode, lastMappingResultDomDataKey) || [];
 
-         var lastArray = ko.utils.arrayMap(lastMappingResult, function (x) { return x.arrayEntry; });
 
-         var editScript = ko.utils.compareArrays(lastArray, array, options['dontLimitMoves']);
 
-         // Build the new mapping result
 
-         var newMappingResult = [];
 
-         var lastMappingResultIndex = 0;
 
-         var newMappingResultIndex = 0;
 
-         var nodesToDelete = [];
 
-         var itemsToProcess = [];
 
-         var itemsForBeforeRemoveCallbacks = [];
 
-         var itemsForMoveCallbacks = [];
 
-         var itemsForAfterAddCallbacks = [];
 
-         var mapData;
 
-         function itemMovedOrRetained(editScriptIndex, oldPosition) {
 
-             mapData = lastMappingResult[oldPosition];
 
-             if (newMappingResultIndex !== oldPosition)
 
-                 itemsForMoveCallbacks[editScriptIndex] = mapData;
 
-             // Since updating the index might change the nodes, do so before calling fixUpContinuousNodeArray
 
-             mapData.indexObservable(newMappingResultIndex++);
 
-             ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode);
 
-             newMappingResult.push(mapData);
 
-             itemsToProcess.push(mapData);
 
-         }
 
-         function callCallback(callback, items) {
 
-             if (callback) {
 
-                 for (var i = 0, n = items.length; i < n; i++) {
 
-                     if (items[i]) {
 
-                         ko.utils.arrayForEach(items[i].mappedNodes, function(node) {
 
-                             callback(node, i, items[i].arrayEntry);
 
-                         });
 
-                     }
 
-                 }
 
-             }
 
-         }
 
-         for (var i = 0, editScriptItem, movedIndex; editScriptItem = editScript[i]; i++) {
 
-             movedIndex = editScriptItem['moved'];
 
-             switch (editScriptItem['status']) {
 
-                 case "deleted":
 
-                     if (movedIndex === undefined) {
 
-                         mapData = lastMappingResult[lastMappingResultIndex];
 
-                         // Stop tracking changes to the mapping for these nodes
 
-                         if (mapData.dependentObservable)
 
-                             mapData.dependentObservable.dispose();
 
-                         // Queue these nodes for later removal
 
-                         nodesToDelete.push.apply(nodesToDelete, ko.utils.fixUpContinuousNodeArray(mapData.mappedNodes, domNode));
 
-                         if (options['beforeRemove']) {
 
-                             itemsForBeforeRemoveCallbacks[i] = mapData;
 
-                             itemsToProcess.push(mapData);
 
-                         }
 
-                     }
 
-                     lastMappingResultIndex++;
 
-                     break;
 
-                 case "retained":
 
-                     itemMovedOrRetained(i, lastMappingResultIndex++);
 
-                     break;
 
-                 case "added":
 
-                     if (movedIndex !== undefined) {
 
-                         itemMovedOrRetained(i, movedIndex);
 
-                     } else {
 
-                         mapData = { arrayEntry: editScriptItem['value'], indexObservable: ko.observable(newMappingResultIndex++) };
 
-                         newMappingResult.push(mapData);
 
-                         itemsToProcess.push(mapData);
 
-                         if (!isFirstExecution)
 
-                             itemsForAfterAddCallbacks[i] = mapData;
 
-                     }
 
-                     break;
 
-             }
 
-         }
 
-         // Call beforeMove first before any changes have been made to the DOM
 
-         callCallback(options['beforeMove'], itemsForMoveCallbacks);
 
-         // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)
 
-         ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
 
-         // Next add/reorder the remaining items (will include deleted items if there's a beforeRemove callback)
 
-         for (var i = 0, nextNode = ko.virtualElements.firstChild(domNode), lastNode, node; mapData = itemsToProcess[i]; i++) {
 
-             // Get nodes for newly added items
 
-             if (!mapData.mappedNodes)
 
-                 ko.utils.extend(mapData, mapNodeAndRefreshWhenChanged(domNode, mapping, mapData.arrayEntry, callbackAfterAddingNodes, mapData.indexObservable));
 
-             // Put nodes in the right place if they aren't there already
 
-             for (var j = 0; node = mapData.mappedNodes[j]; nextNode = node.nextSibling, lastNode = node, j++) {
 
-                 if (node !== nextNode)
 
-                     ko.virtualElements.insertAfter(domNode, node, lastNode);
 
-             }
 
-             // Run the callbacks for newly added nodes (for example, to apply bindings, etc.)
 
-             if (!mapData.initialized && callbackAfterAddingNodes) {
 
-                 callbackAfterAddingNodes(mapData.arrayEntry, mapData.mappedNodes, mapData.indexObservable);
 
-                 mapData.initialized = true;
 
-             }
 
-         }
 
-         // If there's a beforeRemove callback, call it after reordering.
 
-         // Note that we assume that the beforeRemove callback will usually be used to remove the nodes using
 
-         // some sort of animation, which is why we first reorder the nodes that will be removed. If the
 
-         // callback instead removes the nodes right away, it would be more efficient to skip reordering them.
 
-         // Perhaps we'll make that change in the future if this scenario becomes more common.
 
-         callCallback(options['beforeRemove'], itemsForBeforeRemoveCallbacks);
 
-         // Finally call afterMove and afterAdd callbacks
 
-         callCallback(options['afterMove'], itemsForMoveCallbacks);
 
-         callCallback(options['afterAdd'], itemsForAfterAddCallbacks);
 
-         // Store a copy of the array items we just considered so we can difference it next time
 
-         ko.utils.domData.set(domNode, lastMappingResultDomDataKey, newMappingResult);
 
-     }
 
- })();
 
- ko.exportSymbol('utils.setDomNodeChildrenFromArrayMapping', ko.utils.setDomNodeChildrenFromArrayMapping);
 
- ko.nativeTemplateEngine = function () {
 
-     this['allowTemplateRewriting'] = false;
 
- }
 
- ko.nativeTemplateEngine.prototype = new ko.templateEngine();
 
- ko.nativeTemplateEngine.prototype.constructor = ko.nativeTemplateEngine;
 
- ko.nativeTemplateEngine.prototype['renderTemplateSource'] = function (templateSource, bindingContext, options, templateDocument) {
 
-     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, templateDocument);
 
-     }
 
- };
 
- ko.nativeTemplateEngine.instance = new ko.nativeTemplateEngine();
 
- ko.setTemplateEngine(ko.nativeTemplateEngine.instance);
 
- ko.exportSymbol('nativeTemplateEngine', ko.nativeTemplateEngine);
 
- (function() {
 
-     ko.jqueryTmplTemplateEngine = function () {
 
-         // Detect which version of jquery-tmpl you're using. Unfortunately jquery-tmpl
 
-         // doesn't expose a version number, so we have to infer it.
 
-         // Note that as of Knockout 1.3, we only support jQuery.tmpl 1.0.0pre and later,
 
-         // which KO internally refers to as version "2", so older versions are no longer detected.
 
-         var jQueryTmplVersion = this.jQueryTmplVersion = (function() {
 
-             if (!jQueryInstance || !(jQueryInstance['tmpl']))
 
-                 return 0;
 
-             // Since it exposes no official version number, we use our own numbering system. To be updated as jquery-tmpl evolves.
 
-             try {
 
-                 if (jQueryInstance['tmpl']['tag']['tmpl']['open'].toString().indexOf('__') >= 0) {
 
-                     // Since 1.0.0pre, custom tags should append markup to an array called "__"
 
-                     return 2; // Final version of jquery.tmpl
 
-                 }
 
-             } catch(ex) { /* Apparently not the version we were looking for */ }
 
-             return 1; // Any older version that we don't support
 
-         })();
 
-         function ensureHasReferencedJQueryTemplates() {
 
-             if (jQueryTmplVersion < 2)
 
-                 throw new Error("Your version of jQuery.tmpl is too old. Please upgrade to jQuery.tmpl 1.0.0pre or later.");
 
-         }
 
-         function executeTemplate(compiledTemplate, data, jQueryTemplateOptions) {
 
-             return jQueryInstance['tmpl'](compiledTemplate, data, jQueryTemplateOptions);
 
-         }
 
-         this['renderTemplateSource'] = function(templateSource, bindingContext, options, templateDocument) {
 
-             templateDocument = templateDocument || document;
 
-             options = options || {};
 
-             ensureHasReferencedJQueryTemplates();
 
-             // Ensure we have stored a precompiled version of this template (don't want to reparse on every render)
 
-             var precompiled = templateSource['data']('precompiled');
 
-             if (!precompiled) {
 
-                 var templateText = templateSource['text']() || "";
 
-                 // Wrap in "with($whatever.koBindingContext) { ... }"
 
-                 templateText = "{{ko_with $item.koBindingContext}}" + templateText + "{{/ko_with}}";
 
-                 precompiled = jQueryInstance['template'](null, templateText);
 
-                 templateSource['data']('precompiled', precompiled);
 
-             }
 
-             var data = [bindingContext['$data']]; // Prewrap the data in an array to stop jquery.tmpl from trying to unwrap any arrays
 
-             var jQueryTemplateOptions = jQueryInstance['extend']({ 'koBindingContext': bindingContext }, options['templateOptions']);
 
-             var resultNodes = executeTemplate(precompiled, data, jQueryTemplateOptions);
 
-             resultNodes['appendTo'](templateDocument.createElement("div")); // Using "appendTo" forces jQuery/jQuery.tmpl to perform necessary cleanup work
 
-             jQueryInstance['fragments'] = {}; // Clear jQuery's fragment cache to avoid a memory leak after a large number of template renders
 
-             return resultNodes;
 
-         };
 
-         this['createJavaScriptEvaluatorBlock'] = function(script) {
 
-             return "{{ko_code ((function() { return " + script + " })()) }}";
 
-         };
 
-         this['addTemplate'] = function(templateName, templateMarkup) {
 
-             document.write("<script type='text/html' id='" + templateName + "'>" + templateMarkup + "<" + "/script>");
 
-         };
 
-         if (jQueryTmplVersion > 0) {
 
-             jQueryInstance['tmpl']['tag']['ko_code'] = {
 
-                 open: "__.push($1 || '');"
 
-             };
 
-             jQueryInstance['tmpl']['tag']['ko_with'] = {
 
-                 open: "with($1) {",
 
-                 close: "} "
 
-             };
 
-         }
 
-     };
 
-     ko.jqueryTmplTemplateEngine.prototype = new ko.templateEngine();
 
-     ko.jqueryTmplTemplateEngine.prototype.constructor = ko.jqueryTmplTemplateEngine;
 
-     // Use this one by default *only if jquery.tmpl is referenced*
 
-     var jqueryTmplTemplateEngineInstance = new ko.jqueryTmplTemplateEngine();
 
-     if (jqueryTmplTemplateEngineInstance.jQueryTmplVersion > 0)
 
-         ko.setTemplateEngine(jqueryTmplTemplateEngineInstance);
 
-     ko.exportSymbol('jqueryTmplTemplateEngine', ko.jqueryTmplTemplateEngine);
 
- })();
 
- }));
 
- }());
 
- })();
 
 
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