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treeview.js
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			/*
			Copyright (c) 2010, Yahoo! Inc. All rights reserved.
			Code licensed under the BSD License:
			http://developer.yahoo.com/yui/license.html
			version: 2.8.2r1
			*/
			(function () {
			var Dom = YAHOO.util.Dom,
			Event = YAHOO.util.Event,
			Lang = YAHOO.lang,
			Widget = YAHOO.widget;



			/**
			* The treeview widget is a generic tree building tool.
			* @module treeview
			* @title TreeView Widget
			* @requires yahoo, dom, event
			* @optional animation, json, calendar
			* @namespace YAHOO.widget
			*/

			/**
			* Contains the tree view state data and the root node.
			*
			* @class TreeView
			* @uses YAHOO.util.EventProvider
			* @constructor
			* @param {string\|HTMLElement} id The id of the element, or the element itself that the tree will be inserted into.
			* Existing markup in this element, if valid, will be used to build the tree
			* @param {Array\|Object\|String} oConfig (optional) If present, it will be used to build the tree via method <a href="#method_buildTreeFromObject">buildTreeFromObject</a>
			*
			*/
			YAHOO.widget.TreeView = function(id, oConfig) {
			if (id) { this.init(id); }
			if (oConfig) {
			this.buildTreeFromObject(oConfig);
			} else if (Lang.trim(this._el.innerHTML)) {
			this.buildTreeFromMarkup(id);
			}
			};

			var TV = Widget.TreeView;

			TV.prototype = {

			/**
			* The id of tree container element
			* @property id
			* @type String
			*/
			id: null,

			/**
			* The host element for this tree
			* @property _el
			* @private
			* @type HTMLelement
			*/
			_el: null,

			/**
			* Flat collection of all nodes in this tree. This is a sparse
			* array, so the length property can't be relied upon for a
			* node count for the tree.
			* @property _nodes
			* @type Node[]
			* @private
			*/
			_nodes: null,

			/**
			* We lock the tree control while waiting for the dynamic loader to return
			* @property locked
			* @type boolean
			*/
			locked: false,

			/**
			* The animation to use for expanding children, if any
			* @property _expandAnim
			* @type string
			* @private
			*/
			_expandAnim: null,

			/**
			* The animation to use for collapsing children, if any
			* @property _collapseAnim
			* @type string
			* @private
			*/
			_collapseAnim: null,

			/**
			* The current number of animations that are executing
			* @property _animCount
			* @type int
			* @private
			*/
			_animCount: 0,

			/**
			* The maximum number of animations to run at one time.
			* @property maxAnim
			* @type int
			*/
			maxAnim: 2,

			/**
			* Whether there is any subscriber to dblClickEvent
			* @property _hasDblClickSubscriber
			* @type boolean
			* @private
			*/
			_hasDblClickSubscriber: false,

			/**
			* Stores the timer used to check for double clicks
			* @property _dblClickTimer
			* @type window.timer object
			* @private
			*/
			_dblClickTimer: null,

			/**
			* A reference to the Node currently having the focus or null if none.
			* @property currentFocus
			* @type YAHOO.widget.Node
			*/
			currentFocus: null,

			/**
			* If true, only one Node can be highlighted at a time
			* @property singleNodeHighlight
			* @type boolean
			* @default false
			*/

			singleNodeHighlight: false,

			/**
			* A reference to the Node that is currently highlighted.
			* It is only meaningful if singleNodeHighlight is enabled
			* @property _currentlyHighlighted
			* @type YAHOO.widget.Node
			* @default null
			* @private
			*/

			_currentlyHighlighted: null,

			/**
			* Sets up the animation for expanding children
			* @method setExpandAnim
			* @param {string} type the type of animation (acceptable values defined
			* in YAHOO.widget.TVAnim)
			*/
			setExpandAnim: function(type) {
			this._expandAnim = (Widget.TVAnim.isValid(type)) ? type : null;
			},

			/**
			* Sets up the animation for collapsing children
			* @method setCollapseAnim
			* @param {string} type of animation (acceptable values defined in
			* YAHOO.widget.TVAnim)
			*/
			setCollapseAnim: function(type) {
			this._collapseAnim = (Widget.TVAnim.isValid(type)) ? type : null;
			},

			/**
			* Perform the expand animation if configured, or just show the
			* element if not configured or too many animations are in progress
			* @method animateExpand
			* @param el {HTMLElement} the element to animate
			* @param node {YAHOO.util.Node} the node that was expanded
			* @return {boolean} true if animation could be invoked, false otherwise
			*/
			animateExpand: function(el, node) {

			if (this._expandAnim && this._animCount < this.maxAnim) {
			// this.locked = true;
			var tree = this;
			var a = Widget.TVAnim.getAnim(this._expandAnim, el,
			function() { tree.expandComplete(node); });
			if (a) {
			++this._animCount;
			this.fireEvent("animStart", {
			"node": node,
			"type": "expand"
			});
			a.animate();
			}

			return true;
			}

			return false;
			},

			/**
			* Perform the collapse animation if configured, or just show the
			* element if not configured or too many animations are in progress
			* @method animateCollapse
			* @param el {HTMLElement} the element to animate
			* @param node {YAHOO.util.Node} the node that was expanded
			* @return {boolean} true if animation could be invoked, false otherwise
			*/
			animateCollapse: function(el, node) {

			if (this._collapseAnim && this._animCount < this.maxAnim) {
			// this.locked = true;
			var tree = this;
			var a = Widget.TVAnim.getAnim(this._collapseAnim, el,
			function() { tree.collapseComplete(node); });
			if (a) {
			++this._animCount;
			this.fireEvent("animStart", {
			"node": node,
			"type": "collapse"
			});
			a.animate();
			}

			return true;
			}

			return false;
			},

			/**
			* Function executed when the expand animation completes
			* @method expandComplete
			*/
			expandComplete: function(node) {
			--this._animCount;
			this.fireEvent("animComplete", {
			"node": node,
			"type": "expand"
			});
			// this.locked = false;
			},

			/**
			* Function executed when the collapse animation completes
			* @method collapseComplete
			*/
			collapseComplete: function(node) {
			--this._animCount;
			this.fireEvent("animComplete", {
			"node": node,
			"type": "collapse"
			});
			// this.locked = false;
			},

			/**
			* Initializes the tree
			* @method init
			* @parm {string\|HTMLElement} id the id of the element that will hold the tree
			* @private
			*/
			init: function(id) {
			this._el = Dom.get(id);
			this.id = Dom.generateId(this._el,"yui-tv-auto-id-");

			/**
			* When animation is enabled, this event fires when the animation
			* starts
			* @event animStart
			* @type CustomEvent
			* @param {YAHOO.widget.Node} oArgs.node the node that is expanding/collapsing
			* @param {String} oArgs.type the type of animation ("expand" or "collapse")
			*/
			this.createEvent("animStart", this);

			/**
			* When animation is enabled, this event fires when the animation
			* completes
			* @event animComplete
			* @type CustomEvent
			* @param {YAHOO.widget.Node} oArgs.node the node that is expanding/collapsing
			* @param {String} oArgs.type the type of animation ("expand" or "collapse")
			*/
			this.createEvent("animComplete", this);

			/**
			* Fires when a node is going to be collapsed. Return false to stop
			* the collapse.
			* @event collapse
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that is collapsing
			*/
			this.createEvent("collapse", this);

			/**
			* Fires after a node is successfully collapsed. This event will not fire
			* if the "collapse" event was cancelled.
			* @event collapseComplete
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that was collapsed
			*/
			this.createEvent("collapseComplete", this);

			/**
			* Fires when a node is going to be expanded. Return false to stop
			* the collapse.
			* @event expand
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that is expanding
			*/
			this.createEvent("expand", this);

			/**
			* Fires after a node is successfully expanded. This event will not fire
			* if the "expand" event was cancelled.
			* @event expandComplete
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that was expanded
			*/
			this.createEvent("expandComplete", this);

			/**
			* Fires when the Enter key is pressed on a node that has the focus
			* @event enterKeyPressed
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that has the focus
			*/
			this.createEvent("enterKeyPressed", this);

			/**
			* Fires when the label in a TextNode or MenuNode or content in an HTMLNode receives a Click.
			* The listener may return false to cancel toggling and focusing on the node.
			* @event clickEvent
			* @type CustomEvent
			* @param oArgs.event {HTMLEvent} The event object
			* @param oArgs.node {YAHOO.widget.Node} node the node that was clicked
			*/
			this.createEvent("clickEvent", this);

			/**
			* Fires when the focus receives the focus, when it changes from a Node
			* to another Node or when it is completely lost (blurred)
			* @event focusChanged
			* @type CustomEvent
			* @param oArgs.oldNode {YAHOO.widget.Node} Node that had the focus or null if none
			* @param oArgs.newNode {YAHOO.widget.Node} Node that receives the focus or null if none
			*/

			this.createEvent('focusChanged',this);

			/**
			* Fires when the label in a TextNode or MenuNode or content in an HTMLNode receives a double Click
			* @event dblClickEvent
			* @type CustomEvent
			* @param oArgs.event {HTMLEvent} The event object
			* @param oArgs.node {YAHOO.widget.Node} node the node that was clicked
			*/
			var self = this;
			this.createEvent("dblClickEvent", {
			scope:this,
			onSubscribeCallback: function() {
			self._hasDblClickSubscriber = true;
			}
			});

			/**
			* Custom event that is fired when the text node label is clicked.
			* The node clicked is provided as an argument
			*
			* @event labelClick
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node clicked
			* @deprecated use clickEvent or dblClickEvent
			*/
			this.createEvent("labelClick", this);

			/**
			* Custom event fired when the highlight of a node changes.
			* The node that triggered the change is provided as an argument:
			* The status of the highlight can be checked in
			* <a href="YAHOO.widget.Node.html#property_highlightState">nodeRef.highlightState</a>.
			* Depending on <a href="YAHOO.widget.Node.html#property_propagateHighlight">nodeRef.propagateHighlight</a>, other nodes might have changed
			* @event highlightEvent
			* @type CustomEvent
			* @param node {YAHOO.widget.Node} the node that started the change in highlighting state
			*/
			this.createEvent("highlightEvent",this);



			this._nodes = [];

			// store a global reference
			TV.trees[this.id] = this;

			// Set up the root node
			this.root = new Widget.RootNode(this);

			var LW = Widget.LogWriter;



			if (this._initEditor) {
			this._initEditor();
			}

			// YAHOO.util.Event.onContentReady(this.id, this.handleAvailable, this, true);
			// YAHOO.util.Event.on(this.id, "click", this.handleClick, this, true);
			},

			//handleAvailable: function() {
			//var Event = YAHOO.util.Event;
			//Event.on(this.id,
			//},
			/**
			* Builds the TreeView from an object.
			* This is the method called by the constructor to build the tree when it has a second argument.
			* A tree can be described by an array of objects, each object corresponding to a node.
			* Node descriptions may contain values for any property of a node plus the following extra properties: <ul>
			* <li>type: can be one of the following:<ul>
			* <li> A shortname for a node type (<code>'text','menu','html'</code>) </li>
			* <li>The name of a Node class under YAHOO.widget (<code>'TextNode', 'MenuNode', 'DateNode'</code>, etc) </li>
			* <li>a reference to an actual class: <code>YAHOO.widget.DateNode</code></li>
			* </ul></li>
			* <li>children: an array containing further node definitions</li></ul>
			* A string instead of an object will produce a node of type 'text' with the given string as its label.
			* @method buildTreeFromObject
			* @param oConfig {Array\|Object\|String} array containing a full description of the tree.
			* An object or a string will be turned into an array with the given object or string as its only element.
			*
			*/
			buildTreeFromObject: function (oConfig) {
			var build = function (parent, oConfig) {
			var i, item, node, children, type, NodeType, ThisType;
			for (i = 0; i < oConfig.length; i++) {
			item = oConfig[i];
			if (Lang.isString(item)) {
			node = new Widget.TextNode(item, parent);
			} else if (Lang.isObject(item)) {
			children = item.children;
			delete item.children;
			type = item.type \|\| 'text';
			delete item.type;
			switch (Lang.isString(type) && type.toLowerCase()) {
			case 'text':
			node = new Widget.TextNode(item, parent);
			break;
			case 'menu':
			node = new Widget.MenuNode(item, parent);
			break;
			case 'html':
			node = new Widget.HTMLNode(item, parent);
			break;
			default:
			if (Lang.isString(type)) {
			NodeType = Widget[type];
			} else {
			NodeType = type;
			}
			if (Lang.isObject(NodeType)) {
			for (ThisType = NodeType; ThisType && ThisType !== Widget.Node; ThisType = ThisType.superclass.constructor) {}
			if (ThisType) {
			node = new NodeType(item, parent);
			} else {
			}
			} else {
			}
			}
			if (children) {
			build(node,children);
			}
			} else {
			}
			}
			};
			if (!Lang.isArray(oConfig)) {
			oConfig = [oConfig];
			}


			build(this.root,oConfig);
			},
			/**
			* Builds the TreeView from existing markup. Markup should consist of <UL> or <OL> elements containing <LI> elements.
			* Each <LI> can have one element used as label and a second optional element which is to be a <UL> or <OL>
			* containing nested nodes.
			* Depending on what the first element of the <LI> element is, the following Nodes will be created: <ul>
			* <li>plain text: a regular TextNode</li>
			* <li>anchor <A>: a TextNode with its <code>href</code> and <code>target</code> taken from the anchor</li>
			* <li>anything else: an HTMLNode</li></ul>
			* Only the first outermost (un-)ordered list in the markup and its children will be parsed.
			* Nodes will be collapsed unless an <LI> tag has a className called 'expanded'.
			* All other className attributes will be copied over to the Node className property.
			* If the <LI> element contains an attribute called <code>yuiConfig</code>, its contents should be a JSON-encoded object
			* as the one used in method <a href="#method_buildTreeFromObject">buildTreeFromObject</a>.
			* @method buildTreeFromMarkup
			* @param id {string\|HTMLElement} The id of the element that contains the markup or a reference to it.
			*/
			buildTreeFromMarkup: function (id) {
			var build = function (markup) {
			var el, child, branch = [], config = {}, label, yuiConfig;
			// Dom's getFirstChild and getNextSibling skip over text elements
			for (el = Dom.getFirstChild(markup); el; el = Dom.getNextSibling(el)) {
			switch (el.tagName.toUpperCase()) {
			case 'LI':
			label = '';
			config = {
			expanded: Dom.hasClass(el,'expanded'),
			title: el.title \|\| el.alt \|\| null,
			className: Lang.trim(el.className.replace(/\bexpanded\b/,'')) \|\| null
			};
			// I cannot skip over text elements here because I want them for labels
			child = el.firstChild;
			if (child.nodeType == 3) {
			// nodes with only whitespace, tabs and new lines don't count, they are probably just formatting.
			label = Lang.trim(child.nodeValue.replace(/[\n\t\r]*/g,''));
			if (label) {
			config.type = 'text';
			config.label = label;
			} else {
			child = Dom.getNextSibling(child);
			}
			}
			if (!label) {
			if (child.tagName.toUpperCase() == 'A') {
			config.type = 'text';
			config.label = child.innerHTML;
			config.href = child.href;
			config.target = child.target;
			config.title = child.title \|\| child.alt \|\| config.title;
			} else {
			config.type = 'html';
			var d = document.createElement('div');
			d.appendChild(child.cloneNode(true));
			config.html = d.innerHTML;
			config.hasIcon = true;
			}
			}
			// see if after the label it has a further list which will become children of this node.
			child = Dom.getNextSibling(child);
			switch (child && child.tagName.toUpperCase()) {
			case 'UL':
			case 'OL':
			config.children = build(child);
			break;
			}
			// if there are further elements or text, it will be ignored.

			if (YAHOO.lang.JSON) {
			yuiConfig = el.getAttribute('yuiConfig');
			if (yuiConfig) {
			yuiConfig = YAHOO.lang.JSON.parse(yuiConfig);
			config = YAHOO.lang.merge(config,yuiConfig);
			}
			}

			branch.push(config);
			break;
			case 'UL':
			case 'OL':
			config = {
			type: 'text',
			label: '',
			children: build(child)
			};
			branch.push(config);
			break;
			}
			}
			return branch;
			};

			var markup = Dom.getChildrenBy(Dom.get(id),function (el) {
			var tag = el.tagName.toUpperCase();
			return tag == 'UL' \|\| tag == 'OL';
			});
			if (markup.length) {
			this.buildTreeFromObject(build(markup[0]));
			} else {
			}
			},
			/**
			* Returns the TD element where the event has occurred
			* @method _getEventTargetTdEl
			* @private
			*/
			_getEventTargetTdEl: function (ev) {
			var target = Event.getTarget(ev);
			// go up looking for a TD with a className with a ygtv prefix
			while (target && !(target.tagName.toUpperCase() == 'TD' && Dom.hasClass(target.parentNode,'ygtvrow'))) {
			target = Dom.getAncestorByTagName(target,'td');
			}
			if (Lang.isNull(target)) { return null; }
			// If it is a spacer cell, do nothing
			if (/\bygtv(blank)?depthcell/.test(target.className)) { return null;}
			// If it has an id, search for the node number and see if it belongs to a node in this tree.
			if (target.id) {
			var m = target.id.match(/\bygtv([^\d])(.)/);
			if (m && m[2] && this._nodes[m[2]]) {
			return target;
			}
			}
			return null;
			},
			/**
			* Event listener for click events
			* @method _onClickEvent
			* @private
			*/
			_onClickEvent: function (ev) {
			var self = this,
			td = this._getEventTargetTdEl(ev),
			node,
			target,
			toggle = function (force) {
			node.focus();
			if (force \|\| !node.href) {
			node.toggle();
			try {
			Event.preventDefault(ev);
			} catch (e) {
			// @TODO
			// For some reason IE8 is providing an event object with
			// most of the fields missing, but only when clicking on
			// the node's label, and only when working with inline
			// editing. This generates a "Member not found" error
			// in that browser. Determine if this is a browser
			// bug, or a problem with this code. Already checked to
			// see if the problem has to do with access the event
			// in the outer scope, and that isn't the problem.
			// Maybe the markup for inline editing is broken.
			}
			}
			};

			if (!td) {
			return;
			}

			node = this.getNodeByElement(td);
			if (!node) {
			return;
			}

			// exception to handle deprecated event labelClick
			// @TODO take another look at this deprecation. It is common for people to
			// only be interested in the label click, so why make them have to test
			// the node type to figure out whether the click was on the label?
			target = Event.getTarget(ev);
			if (Dom.hasClass(target, node.labelStyle) \|\| Dom.getAncestorByClassName(target,node.labelStyle)) {
			this.fireEvent('labelClick',node);
			}

			// If it is a toggle cell, toggle
			if (/\bygtv[tl][mp]h?h?/.test(td.className)) {
			toggle(true);
			} else {
			if (this._dblClickTimer) {
			window.clearTimeout(this._dblClickTimer);
			this._dblClickTimer = null;
			} else {
			if (this._hasDblClickSubscriber) {
			this._dblClickTimer = window.setTimeout(function () {
			self._dblClickTimer = null;
			if (self.fireEvent('clickEvent', {event:ev,node:node}) !== false) {
			toggle();
			}
			}, 200);
			} else {
			if (self.fireEvent('clickEvent', {event:ev,node:node}) !== false) {
			toggle();
			}
			}
			}
			}
			},

			/**
			* Event listener for double-click events
			* @method _onDblClickEvent
			* @private
			*/
			_onDblClickEvent: function (ev) {
			if (!this._hasDblClickSubscriber) { return; }
			var td = this._getEventTargetTdEl(ev);
			if (!td) {return;}

			if (!(/\bygtv[tl][mp]h?h?/.test(td.className))) {
			this.fireEvent('dblClickEvent', {event:ev, node:this.getNodeByElement(td)});
			if (this._dblClickTimer) {
			window.clearTimeout(this._dblClickTimer);
			this._dblClickTimer = null;
			}
			}
			},
			/**
			* Event listener for mouse over events
			* @method _onMouseOverEvent
			* @private
			*/
			_onMouseOverEvent:function (ev) {
			var target;
			if ((target = this._getEventTargetTdEl(ev)) && (target = this.getNodeByElement(target)) && (target = target.getToggleEl())) {
			target.className = target.className.replace(/\bygtv([lt])([mp])\b/gi,'ygtv$1$2h');
			}
			},
			/**
			* Event listener for mouse out events
			* @method _onMouseOutEvent
			* @private
			*/
			_onMouseOutEvent: function (ev) {
			var target;
			if ((target = this._getEventTargetTdEl(ev)) && (target = this.getNodeByElement(target)) && (target = target.getToggleEl())) {
			target.className = target.className.replace(/\bygtv([lt])([mp])h\b/gi,'ygtv$1$2');
			}
			},
			/**
			* Event listener for key down events
			* @method _onKeyDownEvent
			* @private
			*/
			_onKeyDownEvent: function (ev) {
			var target = Event.getTarget(ev),
			node = this.getNodeByElement(target),
			newNode = node,
			KEY = YAHOO.util.KeyListener.KEY;

			switch(ev.keyCode) {
			case KEY.UP:
			do {
			if (newNode.previousSibling) {
			newNode = newNode.previousSibling;
			} else {
			newNode = newNode.parent;
			}
			} while (newNode && !newNode._canHaveFocus());
			if (newNode) { newNode.focus(); }
			Event.preventDefault(ev);
			break;
			case KEY.DOWN:
			do {
			if (newNode.nextSibling) {
			newNode = newNode.nextSibling;
			} else {
			newNode.expand();
			newNode = (newNode.children.length \|\| null) && newNode.children[0];
			}
			} while (newNode && !newNode._canHaveFocus);
			if (newNode) { newNode.focus();}
			Event.preventDefault(ev);
			break;
			case KEY.LEFT:
			do {
			if (newNode.parent) {
			newNode = newNode.parent;
			} else {
			newNode = newNode.previousSibling;
			}
			} while (newNode && !newNode._canHaveFocus());
			if (newNode) { newNode.focus();}
			Event.preventDefault(ev);
			break;
			case KEY.RIGHT:
			var self = this,
			moveFocusRight,
			focusOnExpand = function (newNode) {
			self.unsubscribe('expandComplete',focusOnExpand);
			moveFocusRight(newNode);
			};
			moveFocusRight = function (newNode) {
			do {
			if (newNode.isDynamic() && !newNode.childrenRendered) {
			self.subscribe('expandComplete',focusOnExpand);
			newNode.expand();
			newNode = null;
			break;
			} else {
			newNode.expand();
			if (newNode.children.length) {
			newNode = newNode.children[0];
			} else {
			newNode = newNode.nextSibling;
			}
			}
			} while (newNode && !newNode._canHaveFocus());
			if (newNode) { newNode.focus();}
			};

			moveFocusRight(newNode);
			Event.preventDefault(ev);
			break;
			case KEY.ENTER:
			if (node.href) {
			if (node.target) {
			window.open(node.href,node.target);
			} else {
			window.location(node.href);
			}
			} else {
			node.toggle();
			}
			this.fireEvent('enterKeyPressed',node);
			Event.preventDefault(ev);
			break;
			case KEY.HOME:
			newNode = this.getRoot();
			if (newNode.children.length) {newNode = newNode.children[0];}
			if (newNode._canHaveFocus()) { newNode.focus(); }
			Event.preventDefault(ev);
			break;
			case KEY.END:
			newNode = newNode.parent.children;
			newNode = newNode[newNode.length -1];
			if (newNode._canHaveFocus()) { newNode.focus(); }
			Event.preventDefault(ev);
			break;
			// case KEY.PAGE_UP:
			// break;
			// case KEY.PAGE_DOWN:
			// break;
			case 107: // plus key
			if (ev.shiftKey) {
			node.parent.expandAll();
			} else {
			node.expand();
			}
			break;
			case 109: // minus key
			if (ev.shiftKey) {
			node.parent.collapseAll();
			} else {
			node.collapse();
			}
			break;
			default:
			break;
			}
			},
			/**
			* Renders the tree boilerplate and visible nodes
			* @method render
			*/
			render: function() {
			var html = this.root.getHtml(),
			el = this.getEl();
			el.innerHTML = html;
			if (!this._hasEvents) {
			Event.on(el, 'click', this._onClickEvent, this, true);
			Event.on(el, 'dblclick', this._onDblClickEvent, this, true);
			Event.on(el, 'mouseover', this._onMouseOverEvent, this, true);
			Event.on(el, 'mouseout', this._onMouseOutEvent, this, true);
			Event.on(el, 'keydown', this._onKeyDownEvent, this, true);
			}
			this._hasEvents = true;
			},

			/**
			* Returns the tree's host element
			* @method getEl
			* @return {HTMLElement} the host element
			*/
			getEl: function() {
			if (! this._el) {
			this._el = Dom.get(this.id);
			}
			return this._el;
			},

			/**
			* Nodes register themselves with the tree instance when they are created.
			* @method regNode
			* @param node {Node} the node to register
			* @private
			*/
			regNode: function(node) {
			this._nodes[node.index] = node;
			},

			/**
			* Returns the root node of this tree
			* @method getRoot
			* @return {Node} the root node
			*/
			getRoot: function() {
			return this.root;
			},

			/**
			* Configures this tree to dynamically load all child data
			* @method setDynamicLoad
			* @param {function} fnDataLoader the function that will be called to get the data
			* @param iconMode {int} configures the icon that is displayed when a dynamic
			* load node is expanded the first time without children. By default, the
			* "collapse" icon will be used. If set to 1, the leaf node icon will be
			* displayed.
			*/
			setDynamicLoad: function(fnDataLoader, iconMode) {
			this.root.setDynamicLoad(fnDataLoader, iconMode);
			},

			/**
			* Expands all child nodes. Note: this conflicts with the "multiExpand"
			* node property. If expand all is called in a tree with nodes that
			* do not allow multiple siblings to be displayed, only the last sibling
			* will be expanded.
			* @method expandAll
			*/
			expandAll: function() {
			if (!this.locked) {
			this.root.expandAll();
			}
			},

			/**
			* Collapses all expanded child nodes in the entire tree.
			* @method collapseAll
			*/
			collapseAll: function() {
			if (!this.locked) {
			this.root.collapseAll();
			}
			},

			/**
			* Returns a node in the tree that has the specified index (this index
			* is created internally, so this function probably will only be used
			* in html generated for a given node.)
			* @method getNodeByIndex
			* @param {int} nodeIndex the index of the node wanted
			* @return {Node} the node with index=nodeIndex, null if no match
			*/
			getNodeByIndex: function(nodeIndex) {
			var n = this._nodes[nodeIndex];
			return (n) ? n : null;
			},

			/**
			* Returns a node that has a matching property and value in the data
			* object that was passed into its constructor.
			* @method getNodeByProperty
			* @param {object} property the property to search (usually a string)
			* @param {object} value the value we want to find (usuall an int or string)
			* @return {Node} the matching node, null if no match
			*/
			getNodeByProperty: function(property, value) {
			for (var i in this._nodes) {
			if (this._nodes.hasOwnProperty(i)) {
			var n = this._nodes[i];
			if ((property in n && n[property] == value) \|\| (n.data && value == n.data[property])) {
			return n;
			}
			}
			}

			return null;
			},

			/**
			* Returns a collection of nodes that have a matching property
			* and value in the data object that was passed into its constructor.
			* @method getNodesByProperty
			* @param {object} property the property to search (usually a string)
			* @param {object} value the value we want to find (usuall an int or string)
			* @return {Array} the matching collection of nodes, null if no match
			*/
			getNodesByProperty: function(property, value) {
			var values = [];
			for (var i in this._nodes) {
			if (this._nodes.hasOwnProperty(i)) {
			var n = this._nodes[i];
			if ((property in n && n[property] == value) \|\| (n.data && value == n.data[property])) {
			values.push(n);
			}
			}
			}

			return (values.length) ? values : null;
			},


			/**
			* Returns a collection of nodes that have passed the test function
			* passed as its only argument.
			* The function will receive a reference to each node to be tested.
			* @method getNodesBy
			* @param {function} a boolean function that receives a Node instance and returns true to add the node to the results list
			* @return {Array} the matching collection of nodes, null if no match
			*/
			getNodesBy: function(fn) {
			var values = [];
			for (var i in this._nodes) {
			if (this._nodes.hasOwnProperty(i)) {
			var n = this._nodes[i];
			if (fn(n)) {
			values.push(n);
			}
			}
			}
			return (values.length) ? values : null;
			},
			/**
			* Returns the treeview node reference for an ancestor element
			* of the node, or null if it is not contained within any node
			* in this tree.
			* @method getNodeByElement
			* @param el {HTMLElement} the element to test
			* @return {YAHOO.widget.Node} a node reference or null
			*/
			getNodeByElement: function(el) {

			var p=el, m, re=/ygtv([^\d])(.)/;

			do {

			if (p && p.id) {
			m = p.id.match(re);
			if (m && m[2]) {
			return this.getNodeByIndex(m[2]);
			}
			}

			p = p.parentNode;

			if (!p \|\| !p.tagName) {
			break;
			}

			}
			while (p.id !== this.id && p.tagName.toLowerCase() !== "body");

			return null;
			},

			/**
			* When in singleNodeHighlight it returns the node highlighted
			* or null if none. Returns null if singleNodeHighlight is false.
			* @method getHighlightedNode
			* @return {YAHOO.widget.Node} a node reference or null
			*/
			getHighlightedNode: function() {
			return this._currentlyHighlighted;
			},


			/**
			* Removes the node and its children, and optionally refreshes the
			* branch of the tree that was affected.
			* @method removeNode
			* @param {Node} node to remove
			* @param {boolean} autoRefresh automatically refreshes branch if true
			* @return {boolean} False is there was a problem, true otherwise.
			*/
			removeNode: function(node, autoRefresh) {

			// Don't delete the root node
			if (node.isRoot()) {
			return false;
			}

			// Get the branch that we may need to refresh
			var p = node.parent;
			if (p.parent) {
			p = p.parent;
			}

			// Delete the node and its children
			this._deleteNode(node);

			// Refresh the parent of the parent
			if (autoRefresh && p && p.childrenRendered) {
			p.refresh();
			}

			return true;
			},

			/**
			* wait until the animation is complete before deleting
			* to avoid javascript errors
			* @method _removeChildren_animComplete
			* @param o the custom event payload
			* @private
			*/
			_removeChildren_animComplete: function(o) {
			this.unsubscribe(this._removeChildren_animComplete);
			this.removeChildren(o.node);
			},

			/**
			* Deletes this nodes child collection, recursively. Also collapses
			* the node, and resets the dynamic load flag. The primary use for
			* this method is to purge a node and allow it to fetch its data
			* dynamically again.
			* @method removeChildren
			* @param {Node} node the node to purge
			*/
			removeChildren: function(node) {

			if (node.expanded) {
			// wait until the animation is complete before deleting to
			// avoid javascript errors
			if (this._collapseAnim) {
			this.subscribe("animComplete",
			this._removeChildren_animComplete, this, true);
			Widget.Node.prototype.collapse.call(node);
			return;
			}

			node.collapse();
			}

			while (node.children.length) {
			this._deleteNode(node.children[0]);
			}

			if (node.isRoot()) {
			Widget.Node.prototype.expand.call(node);
			}

			node.childrenRendered = false;
			node.dynamicLoadComplete = false;

			node.updateIcon();
			},

			/**
			* Deletes the node and recurses children
			* @method _deleteNode
			* @private
			*/
			_deleteNode: function(node) {
			// Remove all the child nodes first
			this.removeChildren(node);

			// Remove the node from the tree
			this.popNode(node);
			},

			/**
			* Removes the node from the tree, preserving the child collection
			* to make it possible to insert the branch into another part of the
			* tree, or another tree.
			* @method popNode
			* @param {Node} node to remove
			*/
			popNode: function(node) {
			var p = node.parent;

			// Update the parent's collection of children
			var a = [];

			for (var i=0, len=p.children.length;i<len;++i) {
			if (p.children[i] != node) {
			a[a.length] = p.children[i];
			}
			}

			p.children = a;

			// reset the childrenRendered flag for the parent
			p.childrenRendered = false;

			// Update the sibling relationship
			if (node.previousSibling) {
			node.previousSibling.nextSibling = node.nextSibling;
			}

			if (node.nextSibling) {
			node.nextSibling.previousSibling = node.previousSibling;
			}

			if (this.currentFocus == node) {
			this.currentFocus = null;
			}
			if (this._currentlyHighlighted == node) {
			this._currentlyHighlighted = null;
			}

			node.parent = null;
			node.previousSibling = null;
			node.nextSibling = null;
			node.tree = null;

			// Update the tree's node collection
			delete this._nodes[node.index];
			},

			/**
			* Nulls out the entire TreeView instance and related objects, removes attached
			* event listeners, and clears out DOM elements inside the container. After
			* calling this method, the instance reference should be expliclitly nulled by
			* implementer, as in myDataTable = null. Use with caution!
			*
			* @method destroy
			*/
			destroy : function() {
			// Since the label editor can be separated from the main TreeView control
			// the destroy method for it might not be there.
			if (this._destroyEditor) { this._destroyEditor(); }
			var el = this.getEl();
			Event.removeListener(el,'click');
			Event.removeListener(el,'dblclick');
			Event.removeListener(el,'mouseover');
			Event.removeListener(el,'mouseout');
			Event.removeListener(el,'keydown');
			for (var i = 0 ; i < this._nodes.length; i++) {
			var node = this._nodes[i];
			if (node && node.destroy) {node.destroy(); }
			}
			el.innerHTML = '';
			this._hasEvents = false;
			},




			/**
			* TreeView instance toString
			* @method toString
			* @return {string} string representation of the tree
			*/
			toString: function() {
			return "TreeView " + this.id;
			},

			/**
			* Count of nodes in tree
			* @method getNodeCount
			* @return {int} number of nodes in the tree
			*/
			getNodeCount: function() {
			return this.getRoot().getNodeCount();
			},

			/**
			* Returns an object which could be used to rebuild the tree.
			* It can be passed to the tree constructor to reproduce the same tree.
			* It will return false if any node loads dynamically, regardless of whether it is loaded or not.
			* @method getTreeDefinition
			* @return {Object \| false} definition of the tree or false if any node is defined as dynamic
			*/
			getTreeDefinition: function() {
			return this.getRoot().getNodeDefinition();
			},

			/**
			* Abstract method that is executed when a node is expanded
			* @method onExpand
			* @param node {Node} the node that was expanded
			* @deprecated use treeobj.subscribe("expand") instead
			*/
			onExpand: function(node) { },

			/**
			* Abstract method that is executed when a node is collapsed.
			* @method onCollapse
			* @param node {Node} the node that was collapsed.
			* @deprecated use treeobj.subscribe("collapse") instead
			*/
			onCollapse: function(node) { },

			/**
			* Sets the value of a property for all loaded nodes in the tree.
			* @method setNodesProperty
			* @param name {string} Name of the property to be set
			* @param value {any} value to be set
			* @param refresh {boolean} if present and true, it does a refresh
			*/
			setNodesProperty: function(name, value, refresh) {
			this.root.setNodesProperty(name,value);
			if (refresh) {
			this.root.refresh();
			}
			},
			/**
			* Event listener to toggle node highlight.
			* Can be assigned as listener to clickEvent, dblClickEvent and enterKeyPressed.
			* It returns false to prevent the default action.
			* @method onEventToggleHighlight
			* @param oArgs {any} it takes the arguments of any of the events mentioned above
			* @return {false} Always cancels the default action for the event
			*/
			onEventToggleHighlight: function (oArgs) {
			var node;
			if ('node' in oArgs && oArgs.node instanceof Widget.Node) {
			node = oArgs.node;
			} else if (oArgs instanceof Widget.Node) {
			node = oArgs;
			} else {
			return false;
			}
			node.toggleHighlight();
			return false;
			}


			};

			/* Backwards compatibility aliases */
			var PROT = TV.prototype;
			/**
			* Renders the tree boilerplate and visible nodes.
			* Alias for render
			* @method draw
			* @deprecated Use render instead
			*/
			PROT.draw = PROT.render;

			/* end backwards compatibility aliases */

			YAHOO.augment(TV, YAHOO.util.EventProvider);

			/**
			* Running count of all nodes created in all trees. This is
			* used to provide unique identifies for all nodes. Deleting
			* nodes does not change the nodeCount.
			* @property YAHOO.widget.TreeView.nodeCount
			* @type int
			* @static
			*/
			TV.nodeCount = 0;

			/**
			* Global cache of tree instances
			* @property YAHOO.widget.TreeView.trees
			* @type Array
			* @static
			* @private
			*/
			TV.trees = [];

			/**
			* Global method for getting a tree by its id. Used in the generated
			* tree html.
			* @method YAHOO.widget.TreeView.getTree
			* @param treeId {String} the id of the tree instance
			* @return {TreeView} the tree instance requested, null if not found.
			* @static
			*/
			TV.getTree = function(treeId) {
			var t = TV.trees[treeId];
			return (t) ? t : null;
			};


			/**
			* Global method for getting a node by its id. Used in the generated
			* tree html.
			* @method YAHOO.widget.TreeView.getNode
			* @param treeId {String} the id of the tree instance
			* @param nodeIndex {String} the index of the node to return
			* @return {Node} the node instance requested, null if not found
			* @static
			*/
			TV.getNode = function(treeId, nodeIndex) {
			var t = TV.getTree(treeId);
			return (t) ? t.getNodeByIndex(nodeIndex) : null;
			};


			/**
			* Class name assigned to elements that have the focus
			*
			* @property TreeView.FOCUS_CLASS_NAME
			* @type String
			* @static
			* @final
			* @default "ygtvfocus"

			*/
			TV.FOCUS_CLASS_NAME = 'ygtvfocus';



			})();

			(function () {
			var Dom = YAHOO.util.Dom,
			Lang = YAHOO.lang,
			Event = YAHOO.util.Event;
			/**
			* The base class for all tree nodes. The node's presentation and behavior in
			* response to mouse events is handled in Node subclasses.
			* @namespace YAHOO.widget
			* @class Node
			* @uses YAHOO.util.EventProvider
			* @param oData {object} a string or object containing the data that will
			* be used to render this node, and any custom attributes that should be
			* stored with the node (which is available in noderef.data).
			* All values in oData will be used to set equally named properties in the node
			* as long as the node does have such properties, they are not undefined, private or functions,
			* the rest of the values will be stored in noderef.data
			* @param oParent {Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state (deprecated, use oData.expanded)
			* @constructor
			*/
			YAHOO.widget.Node = function(oData, oParent, expanded) {
			if (oData) { this.init(oData, oParent, expanded); }
			};

			YAHOO.widget.Node.prototype = {

			/**
			* The index for this instance obtained from global counter in YAHOO.widget.TreeView.
			* @property index
			* @type int
			*/
			index: 0,

			/**
			* This node's child node collection.
			* @property children
			* @type Node[]
			*/
			children: null,

			/**
			* Tree instance this node is part of
			* @property tree
			* @type TreeView
			*/
			tree: null,

			/**
			* The data linked to this node. This can be any object or primitive
			* value, and the data can be used in getNodeHtml().
			* @property data
			* @type object
			*/
			data: null,

			/**
			* Parent node
			* @property parent
			* @type Node
			*/
			parent: null,

			/**
			* The depth of this node. We start at -1 for the root node.
			* @property depth
			* @type int
			*/
			depth: -1,

			/**
			* The node's expanded/collapsed state
			* @property expanded
			* @type boolean
			*/
			expanded: false,

			/**
			* Can multiple children be expanded at once?
			* @property multiExpand
			* @type boolean
			*/
			multiExpand: true,

			/**
			* Should we render children for a collapsed node? It is possible that the
			* implementer will want to render the hidden data... @todo verify that we
			* need this, and implement it if we do.
			* @property renderHidden
			* @type boolean
			*/
			renderHidden: false,

			/**
			* This flag is set to true when the html is generated for this node's
			* children, and set to false when new children are added.
			* @property childrenRendered
			* @type boolean
			*/
			childrenRendered: false,

			/**
			* Dynamically loaded nodes only fetch the data the first time they are
			* expanded. This flag is set to true once the data has been fetched.
			* @property dynamicLoadComplete
			* @type boolean
			*/
			dynamicLoadComplete: false,

			/**
			* This node's previous sibling
			* @property previousSibling
			* @type Node
			*/
			previousSibling: null,

			/**
			* This node's next sibling
			* @property nextSibling
			* @type Node
			*/
			nextSibling: null,

			/**
			* We can set the node up to call an external method to get the child
			* data dynamically.
			* @property _dynLoad
			* @type boolean
			* @private
			*/
			_dynLoad: false,

			/**
			* Function to execute when we need to get this node's child data.
			* @property dataLoader
			* @type function
			*/
			dataLoader: null,

			/**
			* This is true for dynamically loading nodes while waiting for the
			* callback to return.
			* @property isLoading
			* @type boolean
			*/
			isLoading: false,

			/**
			* The toggle/branch icon will not show if this is set to false. This
			* could be useful if the implementer wants to have the child contain
			* extra info about the parent, rather than an actual node.
			* @property hasIcon
			* @type boolean
			*/
			hasIcon: true,

			/**
			* Used to configure what happens when a dynamic load node is expanded
			* and we discover that it does not have children. By default, it is
			* treated as if it still could have children (plus/minus icon). Set
			* iconMode to have it display like a leaf node instead.
			* @property iconMode
			* @type int
			*/
			iconMode: 0,

			/**
			* Specifies whether or not the content area of the node should be allowed
			* to wrap.
			* @property nowrap
			* @type boolean
			* @default false
			*/
			nowrap: false,

			/**
			* If true, the node will alway be rendered as a leaf node. This can be
			* used to override the presentation when dynamically loading the entire
			* tree. Setting this to true also disables the dynamic load call for the
			* node.
			* @property isLeaf
			* @type boolean
			* @default false
			*/
			isLeaf: false,

			/**
			* The CSS class for the html content container. Defaults to ygtvhtml, but
			* can be overridden to provide a custom presentation for a specific node.
			* @property contentStyle
			* @type string
			*/
			contentStyle: "",


			/**
			* The generated id that will contain the data passed in by the implementer.
			* @property contentElId
			* @type string
			*/
			contentElId: null,

			/**
			* Enables node highlighting. If true, the node can be highlighted and/or propagate highlighting
			* @property enableHighlight
			* @type boolean
			* @default true
			*/
			enableHighlight: true,

			/**
			* Stores the highlight state. Can be any of:
			* <ul>
			* <li>0 - not highlighted</li>
			* <li>1 - highlighted</li>
			* <li>2 - some children highlighted</li>
			* </ul>
			* @property highlightState
			* @type integer
			* @default 0
			*/

			highlightState: 0,

			/**
			* Tells whether highlighting will be propagated up to the parents of the clicked node
			* @property propagateHighlightUp
			* @type boolean
			* @default false
			*/

			propagateHighlightUp: false,

			/**
			* Tells whether highlighting will be propagated down to the children of the clicked node
			* @property propagateHighlightDown
			* @type boolean
			* @default false
			*/

			propagateHighlightDown: false,

			/**
			* User-defined className to be added to the Node
			* @property className
			* @type string
			* @default null
			*/

			className: null,

			/**
			* The node type
			* @property _type
			* @private
			* @type string
			* @default "Node"
			*/
			_type: "Node",

			/*
			spacerPath: "http://l.yimg.com/a/i/space.gif",
			expandedText: "Expanded",
			collapsedText: "Collapsed",
			loadingText: "Loading",
			*/

			/**
			* Initializes this node, gets some of the properties from the parent
			* @method init
			* @param oData {object} a string or object containing the data that will
			* be used to render this node
			* @param oParent {Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state
			*/
			init: function(oData, oParent, expanded) {

			this.data = {};
			this.children = [];
			this.index = YAHOO.widget.TreeView.nodeCount;
			++YAHOO.widget.TreeView.nodeCount;
			this.contentElId = "ygtvcontentel" + this.index;

			if (Lang.isObject(oData)) {
			for (var property in oData) {
			if (oData.hasOwnProperty(property)) {
			if (property.charAt(0) != '_' && !Lang.isUndefined(this[property]) && !Lang.isFunction(this[property]) ) {
			this[property] = oData[property];
			} else {
			this.data[property] = oData[property];
			}
			}
			}
			}
			if (!Lang.isUndefined(expanded) ) { this.expanded = expanded; }


			/**
			* The parentChange event is fired when a parent element is applied
			* to the node. This is useful if you need to apply tree-level
			* properties to a tree that need to happen if a node is moved from
			* one tree to another.
			*
			* @event parentChange
			* @type CustomEvent
			*/
			this.createEvent("parentChange", this);

			// oParent should never be null except when we create the root node.
			if (oParent) {
			oParent.appendChild(this);
			}
			},

			/**
			* Certain properties for the node cannot be set until the parent
			* is known. This is called after the node is inserted into a tree.
			* the parent is also applied to this node's children in order to
			* make it possible to move a branch from one tree to another.
			* @method applyParent
			* @param {Node} parentNode this node's parent node
			* @return {boolean} true if the application was successful
			*/
			applyParent: function(parentNode) {
			if (!parentNode) {
			return false;
			}

			this.tree = parentNode.tree;
			this.parent = parentNode;
			this.depth = parentNode.depth + 1;

			// @todo why was this put here. This causes new nodes added at the
			// root level to lose the menu behavior.
			// if (! this.multiExpand) {
			// this.multiExpand = parentNode.multiExpand;
			// }

			this.tree.regNode(this);
			parentNode.childrenRendered = false;

			// cascade update existing children
			for (var i=0, len=this.children.length;i<len;++i) {
			this.children[i].applyParent(this);
			}

			this.fireEvent("parentChange");

			return true;
			},

			/**
			* Appends a node to the child collection.
			* @method appendChild
			* @param childNode {Node} the new node
			* @return {Node} the child node
			* @private
			*/
			appendChild: function(childNode) {
			if (this.hasChildren()) {
			var sib = this.children[this.children.length - 1];
			sib.nextSibling = childNode;
			childNode.previousSibling = sib;
			}
			this.children[this.children.length] = childNode;
			childNode.applyParent(this);

			// part of the IE display issue workaround. If child nodes
			// are added after the initial render, and the node was
			// instantiated with expanded = true, we need to show the
			// children div now that the node has a child.
			if (this.childrenRendered && this.expanded) {
			this.getChildrenEl().style.display = "";
			}

			return childNode;
			},

			/**
			* Appends this node to the supplied node's child collection
			* @method appendTo
			* @param parentNode {Node} the node to append to.
			* @return {Node} The appended node
			*/
			appendTo: function(parentNode) {
			return parentNode.appendChild(this);
			},

			/**
			* Inserts this node before this supplied node
			* @method insertBefore
			* @param node {Node} the node to insert this node before
			* @return {Node} the inserted node
			*/
			insertBefore: function(node) {
			var p = node.parent;
			if (p) {

			if (this.tree) {
			this.tree.popNode(this);
			}

			var refIndex = node.isChildOf(p);
			p.children.splice(refIndex, 0, this);
			if (node.previousSibling) {
			node.previousSibling.nextSibling = this;
			}
			this.previousSibling = node.previousSibling;
			this.nextSibling = node;
			node.previousSibling = this;

			this.applyParent(p);
			}

			return this;
			},

			/**
			* Inserts this node after the supplied node
			* @method insertAfter
			* @param node {Node} the node to insert after
			* @return {Node} the inserted node
			*/
			insertAfter: function(node) {
			var p = node.parent;
			if (p) {

			if (this.tree) {
			this.tree.popNode(this);
			}

			var refIndex = node.isChildOf(p);

			if (!node.nextSibling) {
			this.nextSibling = null;
			return this.appendTo(p);
			}

			p.children.splice(refIndex + 1, 0, this);

			node.nextSibling.previousSibling = this;
			this.previousSibling = node;
			this.nextSibling = node.nextSibling;
			node.nextSibling = this;

			this.applyParent(p);
			}

			return this;
			},

			/**
			* Returns true if the Node is a child of supplied Node
			* @method isChildOf
			* @param parentNode {Node} the Node to check
			* @return {boolean} The node index if this Node is a child of
			* supplied Node, else -1.
			* @private
			*/
			isChildOf: function(parentNode) {
			if (parentNode && parentNode.children) {
			for (var i=0, len=parentNode.children.length; i<len ; ++i) {
			if (parentNode.children[i] === this) {
			return i;
			}
			}
			}

			return -1;
			},

			/**
			* Returns a node array of this node's siblings, null if none.
			* @method getSiblings
			* @return Node[]
			*/
			getSiblings: function() {
			var sib = this.parent.children.slice(0);
			for (var i=0;i < sib.length && sib[i] != this;i++) {}
			sib.splice(i,1);
			if (sib.length) { return sib; }
			return null;
			},

			/**
			* Shows this node's children
			* @method showChildren
			*/
			showChildren: function() {
			if (!this.tree.animateExpand(this.getChildrenEl(), this)) {
			if (this.hasChildren()) {
			this.getChildrenEl().style.display = "";
			}
			}
			},

			/**
			* Hides this node's children
			* @method hideChildren
			*/
			hideChildren: function() {

			if (!this.tree.animateCollapse(this.getChildrenEl(), this)) {
			this.getChildrenEl().style.display = "none";
			}
			},

			/**
			* Returns the id for this node's container div
			* @method getElId
			* @return {string} the element id
			*/
			getElId: function() {
			return "ygtv" + this.index;
			},

			/**
			* Returns the id for this node's children div
			* @method getChildrenElId
			* @return {string} the element id for this node's children div
			*/
			getChildrenElId: function() {
			return "ygtvc" + this.index;
			},

			/**
			* Returns the id for this node's toggle element
			* @method getToggleElId
			* @return {string} the toggel element id
			*/
			getToggleElId: function() {
			return "ygtvt" + this.index;
			},


			/*
			* Returns the id for this node's spacer image. The spacer is positioned
			* over the toggle and provides feedback for screen readers.
			* @method getSpacerId
			* @return {string} the id for the spacer image
			*/
			/*
			getSpacerId: function() {
			return "ygtvspacer" + this.index;
			},
			*/

			/**
			* Returns this node's container html element
			* @method getEl
			* @return {HTMLElement} the container html element
			*/
			getEl: function() {
			return Dom.get(this.getElId());
			},

			/**
			* Returns the div that was generated for this node's children
			* @method getChildrenEl
			* @return {HTMLElement} this node's children div
			*/
			getChildrenEl: function() {
			return Dom.get(this.getChildrenElId());
			},

			/**
			* Returns the element that is being used for this node's toggle.
			* @method getToggleEl
			* @return {HTMLElement} this node's toggle html element
			*/
			getToggleEl: function() {
			return Dom.get(this.getToggleElId());
			},
			/**
			* Returns the outer html element for this node's content
			* @method getContentEl
			* @return {HTMLElement} the element
			*/
			getContentEl: function() {
			return Dom.get(this.contentElId);
			},


			/*
			* Returns the element that is being used for this node's spacer.
			* @method getSpacer
			* @return {HTMLElement} this node's spacer html element
			*/
			/*
			getSpacer: function() {
			return document.getElementById( this.getSpacerId() ) \|\| {};
			},
			*/

			/*
			getStateText: function() {
			if (this.isLoading) {
			return this.loadingText;
			} else if (this.hasChildren(true)) {
			if (this.expanded) {
			return this.expandedText;
			} else {
			return this.collapsedText;
			}
			} else {
			return "";
			}
			},
			*/

			/**
			* Hides this nodes children (creating them if necessary), changes the toggle style.
			* @method collapse
			*/
			collapse: function() {
			// Only collapse if currently expanded
			if (!this.expanded) { return; }

			// fire the collapse event handler
			var ret = this.tree.onCollapse(this);

			if (false === ret) {
			return;
			}

			ret = this.tree.fireEvent("collapse", this);

			if (false === ret) {
			return;
			}


			if (!this.getEl()) {
			this.expanded = false;
			} else {
			// hide the child div
			this.hideChildren();
			this.expanded = false;

			this.updateIcon();
			}

			// this.getSpacer().title = this.getStateText();

			ret = this.tree.fireEvent("collapseComplete", this);

			},

			/**
			* Shows this nodes children (creating them if necessary), changes the
			* toggle style, and collapses its siblings if multiExpand is not set.
			* @method expand
			*/
			expand: function(lazySource) {
			// Only expand if currently collapsed.
			if (this.isLoading \|\| (this.expanded && !lazySource)) {
			return;
			}

			var ret = true;

			// When returning from the lazy load handler, expand is called again
			// in order to render the new children. The "expand" event already
			// fired before fething the new data, so we need to skip it now.
			if (!lazySource) {
			// fire the expand event handler
			ret = this.tree.onExpand(this);

			if (false === ret) {
			return;
			}

			ret = this.tree.fireEvent("expand", this);
			}

			if (false === ret) {
			return;
			}

			if (!this.getEl()) {
			this.expanded = true;
			return;
			}

			if (!this.childrenRendered) {
			this.getChildrenEl().innerHTML = this.renderChildren();
			} else {
			}

			this.expanded = true;

			this.updateIcon();

			// this.getSpacer().title = this.getStateText();

			// We do an extra check for children here because the lazy
			// load feature can expose nodes that have no children.

			// if (!this.hasChildren()) {
			if (this.isLoading) {
			this.expanded = false;
			return;
			}

			if (! this.multiExpand) {
			var sibs = this.getSiblings();
			for (var i=0; sibs && i<sibs.length; ++i) {
			if (sibs[i] != this && sibs[i].expanded) {
			sibs[i].collapse();
			}
			}
			}

			this.showChildren();

			ret = this.tree.fireEvent("expandComplete", this);
			},

			updateIcon: function() {
			if (this.hasIcon) {
			var el = this.getToggleEl();
			if (el) {
			el.className = el.className.replace(/\bygtv(([tl][pmn]h?)\|(loading))\b/gi,this.getStyle());
			}
			}
			},

			/**
			* Returns the css style name for the toggle
			* @method getStyle
			* @return {string} the css class for this node's toggle
			*/
			getStyle: function() {
			if (this.isLoading) {
			return "ygtvloading";
			} else {
			// location top or bottom, middle nodes also get the top style
			var loc = (this.nextSibling) ? "t" : "l";

			// type p=plus(expand), m=minus(collapase), n=none(no children)
			var type = "n";
			if (this.hasChildren(true) \|\| (this.isDynamic() && !this.getIconMode())) {
			// if (this.hasChildren(true)) {
			type = (this.expanded) ? "m" : "p";
			}

			return "ygtv" + loc + type;
			}
			},

			/**
			* Returns the hover style for the icon
			* @return {string} the css class hover state
			* @method getHoverStyle
			*/
			getHoverStyle: function() {
			var s = this.getStyle();
			if (this.hasChildren(true) && !this.isLoading) {
			s += "h";
			}
			return s;
			},

			/**
			* Recursively expands all of this node's children.
			* @method expandAll
			*/
			expandAll: function() {
			var l = this.children.length;
			for (var i=0;i<l;++i) {
			var c = this.children[i];
			if (c.isDynamic()) {
			break;
			} else if (! c.multiExpand) {
			break;
			} else {
			c.expand();
			c.expandAll();
			}
			}
			},

			/**
			* Recursively collapses all of this node's children.
			* @method collapseAll
			*/
			collapseAll: function() {
			for (var i=0;i<this.children.length;++i) {
			this.children[i].collapse();
			this.children[i].collapseAll();
			}
			},

			/**
			* Configures this node for dynamically obtaining the child data
			* when the node is first expanded. Calling it without the callback
			* will turn off dynamic load for the node.
			* @method setDynamicLoad
			* @param fmDataLoader {function} the function that will be used to get the data.
			* @param iconMode {int} configures the icon that is displayed when a dynamic
			* load node is expanded the first time without children. By default, the
			* "collapse" icon will be used. If set to 1, the leaf node icon will be
			* displayed.
			*/
			setDynamicLoad: function(fnDataLoader, iconMode) {
			if (fnDataLoader) {
			this.dataLoader = fnDataLoader;
			this._dynLoad = true;
			} else {
			this.dataLoader = null;
			this._dynLoad = false;
			}

			if (iconMode) {
			this.iconMode = iconMode;
			}
			},

			/**
			* Evaluates if this node is the root node of the tree
			* @method isRoot
			* @return {boolean} true if this is the root node
			*/
			isRoot: function() {
			return (this == this.tree.root);
			},

			/**
			* Evaluates if this node's children should be loaded dynamically. Looks for
			* the property both in this instance and the root node. If the tree is
			* defined to load all children dynamically, the data callback function is
			* defined in the root node
			* @method isDynamic
			* @return {boolean} true if this node's children are to be loaded dynamically
			*/
			isDynamic: function() {
			if (this.isLeaf) {
			return false;
			} else {
			return (!this.isRoot() && (this._dynLoad \|\| this.tree.root._dynLoad));
			// return lazy;
			}
			},

			/**
			* Returns the current icon mode. This refers to the way childless dynamic
			* load nodes appear (this comes into play only after the initial dynamic
			* load request produced no children).
			* @method getIconMode
			* @return {int} 0 for collapse style, 1 for leaf node style
			*/
			getIconMode: function() {
			return (this.iconMode \|\| this.tree.root.iconMode);
			},

			/**
			* Checks if this node has children. If this node is lazy-loading and the
			* children have not been rendered, we do not know whether or not there
			* are actual children. In most cases, we need to assume that there are
			* children (for instance, the toggle needs to show the expandable
			* presentation state). In other times we want to know if there are rendered
			* children. For the latter, "checkForLazyLoad" should be false.
			* @method hasChildren
			* @param checkForLazyLoad {boolean} should we check for unloaded children?
			* @return {boolean} true if this has children or if it might and we are
			* checking for this condition.
			*/
			hasChildren: function(checkForLazyLoad) {
			if (this.isLeaf) {
			return false;
			} else {
			return ( this.children.length > 0 \|\|
			(checkForLazyLoad && this.isDynamic() && !this.dynamicLoadComplete)
			);
			}
			},

			/**
			* Expands if node is collapsed, collapses otherwise.
			* @method toggle
			*/
			toggle: function() {
			if (!this.tree.locked && ( this.hasChildren(true) \|\| this.isDynamic()) ) {
			if (this.expanded) { this.collapse(); } else { this.expand(); }
			}
			},

			/**
			* Returns the markup for this node and its children.
			* @method getHtml
			* @return {string} the markup for this node and its expanded children.
			*/
			getHtml: function() {

			this.childrenRendered = false;

			return ['<div class="ygtvitem" id="' , this.getElId() , '">' ,this.getNodeHtml() , this.getChildrenHtml() ,'</div>'].join("");
			},

			/**
			* Called when first rendering the tree. We always build the div that will
			* contain this nodes children, but we don't render the children themselves
			* unless this node is expanded.
			* @method getChildrenHtml
			* @return {string} the children container div html and any expanded children
			* @private
			*/
			getChildrenHtml: function() {


			var sb = [];
			sb[sb.length] = '<div class="ygtvchildren" id="' + this.getChildrenElId() + '"';

			// This is a workaround for an IE rendering issue, the child div has layout
			// in IE, creating extra space if a leaf node is created with the expanded
			// property set to true.
			if (!this.expanded \|\| !this.hasChildren()) {
			sb[sb.length] = ' style="display:none;"';
			}
			sb[sb.length] = '>';


			// Don't render the actual child node HTML unless this node is expanded.
			if ( (this.hasChildren(true) && this.expanded) \|\|
			(this.renderHidden && !this.isDynamic()) ) {
			sb[sb.length] = this.renderChildren();
			}

			sb[sb.length] = '</div>';

			return sb.join("");
			},

			/**
			* Generates the markup for the child nodes. This is not done until the node
			* is expanded.
			* @method renderChildren
			* @return {string} the html for this node's children
			* @private
			*/
			renderChildren: function() {


			var node = this;

			if (this.isDynamic() && !this.dynamicLoadComplete) {
			this.isLoading = true;
			this.tree.locked = true;

			if (this.dataLoader) {

			setTimeout(
			function() {
			node.dataLoader(node,
			function() {
			node.loadComplete();
			});
			}, 10);

			} else if (this.tree.root.dataLoader) {

			setTimeout(
			function() {
			node.tree.root.dataLoader(node,
			function() {
			node.loadComplete();
			});
			}, 10);

			} else {
			return "Error: data loader not found or not specified.";
			}

			return "";

			} else {
			return this.completeRender();
			}
			},

			/**
			* Called when we know we have all the child data.
			* @method completeRender
			* @return {string} children html
			*/
			completeRender: function() {
			var sb = [];

			for (var i=0; i < this.children.length; ++i) {
			// this.children[i].childrenRendered = false;
			sb[sb.length] = this.children[i].getHtml();
			}

			this.childrenRendered = true;

			return sb.join("");
			},

			/**
			* Load complete is the callback function we pass to the data provider
			* in dynamic load situations.
			* @method loadComplete
			*/
			loadComplete: function() {
			this.getChildrenEl().innerHTML = this.completeRender();
			if (this.propagateHighlightDown) {
			if (this.highlightState === 1 && !this.tree.singleNodeHighlight) {
			for (var i = 0; i < this.children.length; i++) {
			this.children[i].highlight(true);
			}
			} else if (this.highlightState === 0 \|\| this.tree.singleNodeHighlight) {
			for (i = 0; i < this.children.length; i++) {
			this.children[i].unhighlight(true);
			}
			} // if (highlighState == 2) leave child nodes with whichever highlight state they are set
			}

			this.dynamicLoadComplete = true;
			this.isLoading = false;
			this.expand(true);
			this.tree.locked = false;
			},

			/**
			* Returns this node's ancestor at the specified depth.
			* @method getAncestor
			* @param {int} depth the depth of the ancestor.
			* @return {Node} the ancestor
			*/
			getAncestor: function(depth) {
			if (depth >= this.depth \|\| depth < 0) {
			return null;
			}

			var p = this.parent;

			while (p.depth > depth) {
			p = p.parent;
			}

			return p;
			},

			/**
			* Returns the css class for the spacer at the specified depth for
			* this node. If this node's ancestor at the specified depth
			* has a next sibling the presentation is different than if it
			* does not have a next sibling
			* @method getDepthStyle
			* @param {int} depth the depth of the ancestor.
			* @return {string} the css class for the spacer
			*/
			getDepthStyle: function(depth) {
			return (this.getAncestor(depth).nextSibling) ?
			"ygtvdepthcell" : "ygtvblankdepthcell";
			},

			/**
			* Get the markup for the node. This may be overrided so that we can
			* support different types of nodes.
			* @method getNodeHtml
			* @return {string} The HTML that will render this node.
			*/
			getNodeHtml: function() {
			var sb = [];

			sb[sb.length] = '<table id="ygtvtableel' + this.index + '" border="0" cellpadding="0" cellspacing="0" class="ygtvtable ygtvdepth' + this.depth;
			if (this.enableHighlight) {
			sb[sb.length] = ' ygtv-highlight' + this.highlightState;
			}
			if (this.className) {
			sb[sb.length] = ' ' + this.className;
			}
			sb[sb.length] = '"><tr class="ygtvrow">';

			for (var i=0;i<this.depth;++i) {
			sb[sb.length] = '<td class="ygtvcell ' + this.getDepthStyle(i) + '"><div class="ygtvspacer"></div></td>';
			}

			if (this.hasIcon) {
			sb[sb.length] = '<td id="' + this.getToggleElId();
			sb[sb.length] = '" class="ygtvcell ';
			sb[sb.length] = this.getStyle() ;
			sb[sb.length] = '"><a href="#" class="ygtvspacer"> </a></td>';
			}

			sb[sb.length] = '<td id="' + this.contentElId;
			sb[sb.length] = '" class="ygtvcell ';
			sb[sb.length] = this.contentStyle + ' ygtvcontent" ';
			sb[sb.length] = (this.nowrap) ? ' nowrap="nowrap" ' : '';
			sb[sb.length] = ' >';
			sb[sb.length] = this.getContentHtml();
			sb[sb.length] = '</td></tr></table>';

			return sb.join("");

			},
			/**
			* Get the markup for the contents of the node. This is designed to be overrided so that we can
			* support different types of nodes.
			* @method getContentHtml
			* @return {string} The HTML that will render the content of this node.
			*/
			getContentHtml: function () {
			return "";
			},

			/**
			* Regenerates the html for this node and its children. To be used when the
			* node is expanded and new children have been added.
			* @method refresh
			*/
			refresh: function() {
			// this.loadComplete();
			this.getChildrenEl().innerHTML = this.completeRender();

			if (this.hasIcon) {
			var el = this.getToggleEl();
			if (el) {
			el.className = el.className.replace(/\bygtv[lt][nmp]h*\b/gi,this.getStyle());
			}
			}
			},

			/**
			* Node toString
			* @method toString
			* @return {string} string representation of the node
			*/
			toString: function() {
			return this._type + " (" + this.index + ")";
			},
			/**
			* array of items that had the focus set on them
			* so that they can be cleaned when focus is lost
			* @property _focusHighlightedItems
			* @type Array of DOM elements
			* @private
			*/
			_focusHighlightedItems: [],
			/**
			* DOM element that actually got the browser focus
			* @property _focusedItem
			* @type DOM element
			* @private
			*/
			_focusedItem: null,

			/**
			* Returns true if there are any elements in the node that can
			* accept the real actual browser focus
			* @method _canHaveFocus
			* @return {boolean} success
			* @private
			*/
			_canHaveFocus: function() {
			return this.getEl().getElementsByTagName('a').length > 0;
			},
			/**
			* Removes the focus of previously selected Node
			* @method _removeFocus
			* @private
			*/
			_removeFocus:function () {
			if (this._focusedItem) {
			Event.removeListener(this._focusedItem,'blur');
			this._focusedItem = null;
			}
			var el;
			while ((el = this._focusHighlightedItems.shift())) { // yes, it is meant as an assignment, really
			Dom.removeClass(el,YAHOO.widget.TreeView.FOCUS_CLASS_NAME );
			}
			},
			/**
			* Sets the focus on the node element.
			* It will only be able to set the focus on nodes that have anchor elements in it.
			* Toggle or branch icons have anchors and can be focused on.
			* If will fail in nodes that have no anchor
			* @method focus
			* @return {boolean} success
			*/
			focus: function () {
			var focused = false, self = this;

			if (this.tree.currentFocus) {
			this.tree.currentFocus._removeFocus();
			}

			var expandParent = function (node) {
			if (node.parent) {
			expandParent(node.parent);
			node.parent.expand();
			}
			};
			expandParent(this);

			Dom.getElementsBy (
			function (el) {
			return (/ygtv(([tl][pmn]h?)\|(content))/).test(el.className);
			} ,
			'td' ,
			self.getEl().firstChild ,
			function (el) {
			Dom.addClass(el, YAHOO.widget.TreeView.FOCUS_CLASS_NAME );
			if (!focused) {
			var aEl = el.getElementsByTagName('a');
			if (aEl.length) {
			aEl = aEl[0];
			aEl.focus();
			self._focusedItem = aEl;
			Event.on(aEl,'blur',function () {
			//console.log('f1');
			self.tree.fireEvent('focusChanged',{oldNode:self.tree.currentFocus,newNode:null});
			self.tree.currentFocus = null;
			self._removeFocus();
			});
			focused = true;
			}
			}
			self._focusHighlightedItems.push(el);
			}
			);
			if (focused) {
			//console.log('f2');
			this.tree.fireEvent('focusChanged',{oldNode:this.tree.currentFocus,newNode:this});
			this.tree.currentFocus = this;
			} else {
			//console.log('f3');
			this.tree.fireEvent('focusChanged',{oldNode:self.tree.currentFocus,newNode:null});
			this.tree.currentFocus = null;
			this._removeFocus();
			}
			return focused;
			},

			/**
			* Count of nodes in a branch
			* @method getNodeCount
			* @return {int} number of nodes in the branch
			*/
			getNodeCount: function() {
			for (var i = 0, count = 0;i< this.children.length;i++) {
			count += this.children[i].getNodeCount();
			}
			return count + 1;
			},

			/**
			* Returns an object which could be used to build a tree out of this node and its children.
			* It can be passed to the tree constructor to reproduce this node as a tree.
			* It will return false if the node or any children loads dynamically, regardless of whether it is loaded or not.
			* @method getNodeDefinition
			* @return {Object \| false} definition of the tree or false if the node or any children is defined as dynamic
			*/
			getNodeDefinition: function() {

			if (this.isDynamic()) { return false; }

			var def, defs = Lang.merge(this.data), children = [];



			if (this.expanded) {defs.expanded = this.expanded; }
			if (!this.multiExpand) { defs.multiExpand = this.multiExpand; }
			if (!this.renderHidden) { defs.renderHidden = this.renderHidden; }
			if (!this.hasIcon) { defs.hasIcon = this.hasIcon; }
			if (this.nowrap) { defs.nowrap = this.nowrap; }
			if (this.className) { defs.className = this.className; }
			if (this.editable) { defs.editable = this.editable; }
			if (this.enableHighlight) { defs.enableHighlight = this.enableHighlight; }
			if (this.highlightState) { defs.highlightState = this.highlightState; }
			if (this.propagateHighlightUp) { defs.propagateHighlightUp = this.propagateHighlightUp; }
			if (this.propagateHighlightDown) { defs.propagateHighlightDown = this.propagateHighlightDown; }
			defs.type = this._type;



			for (var i = 0; i < this.children.length;i++) {
			def = this.children[i].getNodeDefinition();
			if (def === false) { return false;}
			children.push(def);
			}
			if (children.length) { defs.children = children; }
			return defs;
			},


			/**
			* Generates the link that will invoke this node's toggle method
			* @method getToggleLink
			* @return {string} the javascript url for toggling this node
			*/
			getToggleLink: function() {
			return 'return false;';
			},

			/**
			* Sets the value of property for this node and all loaded descendants.
			* Only public and defined properties can be set, not methods.
			* Values for unknown properties will be assigned to the refNode.data object
			* @method setNodesProperty
			* @param name {string} Name of the property to be set
			* @param value {any} value to be set
			* @param refresh {boolean} if present and true, it does a refresh
			*/
			setNodesProperty: function(name, value, refresh) {
			if (name.charAt(0) != '_' && !Lang.isUndefined(this[name]) && !Lang.isFunction(this[name]) ) {
			this[name] = value;
			} else {
			this.data[name] = value;
			}
			for (var i = 0; i < this.children.length;i++) {
			this.children[i].setNodesProperty(name,value);
			}
			if (refresh) {
			this.refresh();
			}
			},
			/**
			* Toggles the highlighted state of a Node
			* @method toggleHighlight
			*/
			toggleHighlight: function() {
			if (this.enableHighlight) {
			// unhighlights only if fully highligthed. For not or partially highlighted it will highlight
			if (this.highlightState == 1) {
			this.unhighlight();
			} else {
			this.highlight();
			}
			}
			},

			/**
			* Turns highlighting on node.
			* @method highlight
			* @param _silent {boolean} optional, don't fire the highlightEvent
			*/
			highlight: function(_silent) {
			if (this.enableHighlight) {
			if (this.tree.singleNodeHighlight) {
			if (this.tree._currentlyHighlighted) {
			this.tree._currentlyHighlighted.unhighlight(_silent);
			}
			this.tree._currentlyHighlighted = this;
			}
			this.highlightState = 1;
			this._setHighlightClassName();
			if (!this.tree.singleNodeHighlight) {
			if (this.propagateHighlightDown) {
			for (var i = 0;i < this.children.length;i++) {
			this.children[i].highlight(true);
			}
			}
			if (this.propagateHighlightUp) {
			if (this.parent) {
			this.parent._childrenHighlighted();
			}
			}
			}
			if (!_silent) {
			this.tree.fireEvent('highlightEvent',this);
			}
			}
			},
			/**
			* Turns highlighting off a node.
			* @method unhighlight
			* @param _silent {boolean} optional, don't fire the highlightEvent
			*/
			unhighlight: function(_silent) {
			if (this.enableHighlight) {
			// might have checked singleNodeHighlight but it wouldn't really matter either way
			this.tree._currentlyHighlighted = null;
			this.highlightState = 0;
			this._setHighlightClassName();
			if (!this.tree.singleNodeHighlight) {
			if (this.propagateHighlightDown) {
			for (var i = 0;i < this.children.length;i++) {
			this.children[i].unhighlight(true);
			}
			}
			if (this.propagateHighlightUp) {
			if (this.parent) {
			this.parent._childrenHighlighted();
			}
			}
			}
			if (!_silent) {
			this.tree.fireEvent('highlightEvent',this);
			}
			}
			},
			/**
			* Checks whether all or part of the children of a node are highlighted and
			* sets the node highlight to full, none or partial highlight.
			* If set to propagate it will further call the parent
			* @method _childrenHighlighted
			* @private
			*/
			_childrenHighlighted: function() {
			var yes = false, no = false;
			if (this.enableHighlight) {
			for (var i = 0;i < this.children.length;i++) {
			switch(this.children[i].highlightState) {
			case 0:
			no = true;
			break;
			case 1:
			yes = true;
			break;
			case 2:
			yes = no = true;
			break;
			}
			}
			if (yes && no) {
			this.highlightState = 2;
			} else if (yes) {
			this.highlightState = 1;
			} else {
			this.highlightState = 0;
			}
			this._setHighlightClassName();
			if (this.propagateHighlightUp) {
			if (this.parent) {
			this.parent._childrenHighlighted();
			}
			}
			}
			},

			/**
			* Changes the classNames on the toggle and content containers to reflect the current highlighting
			* @method _setHighlightClassName
			* @private
			*/
			_setHighlightClassName: function() {
			var el = Dom.get('ygtvtableel' + this.index);
			if (el) {
			el.className = el.className.replace(/\bygtv-highlight\d\b/gi,'ygtv-highlight' + this.highlightState);
			}
			}

			};

			YAHOO.augment(YAHOO.widget.Node, YAHOO.util.EventProvider);
			})();

			/**
			* A custom YAHOO.widget.Node that handles the unique nature of
			* the virtual, presentationless root node.
			* @namespace YAHOO.widget
			* @class RootNode
			* @extends YAHOO.widget.Node
			* @param oTree {YAHOO.widget.TreeView} The tree instance this node belongs to
			* @constructor
			*/
			YAHOO.widget.RootNode = function(oTree) {
			// Initialize the node with null params. The root node is a
			// special case where the node has no presentation. So we have
			// to alter the standard properties a bit.
			this.init(null, null, true);

			/*
			* For the root node, we get the tree reference from as a param
			* to the constructor instead of from the parent element.
			*/
			this.tree = oTree;
			};

			YAHOO.extend(YAHOO.widget.RootNode, YAHOO.widget.Node, {

			/**
			* The node type
			* @property _type
			* @type string
			* @private
			* @default "RootNode"
			*/
			_type: "RootNode",

			// overrides YAHOO.widget.Node
			getNodeHtml: function() {
			return "";
			},

			toString: function() {
			return this._type;
			},

			loadComplete: function() {
			this.tree.draw();
			},

			/**
			* Count of nodes in tree.
			* It overrides Nodes.getNodeCount because the root node should not be counted.
			* @method getNodeCount
			* @return {int} number of nodes in the tree
			*/
			getNodeCount: function() {
			for (var i = 0, count = 0;i< this.children.length;i++) {
			count += this.children[i].getNodeCount();
			}
			return count;
			},

			/**
			* Returns an object which could be used to build a tree out of this node and its children.
			* It can be passed to the tree constructor to reproduce this node as a tree.
			* Since the RootNode is automatically created by treeView,
			* its own definition is excluded from the returned node definition
			* which only contains its children.
			* @method getNodeDefinition
			* @return {Object \| false} definition of the tree or false if any child node is defined as dynamic
			*/
			getNodeDefinition: function() {

			for (var def, defs = [], i = 0; i < this.children.length;i++) {
			def = this.children[i].getNodeDefinition();
			if (def === false) { return false;}
			defs.push(def);
			}
			return defs;
			},

			collapse: function() {},
			expand: function() {},
			getSiblings: function() { return null; },
			focus: function () {}

			});

			(function () {
			var Dom = YAHOO.util.Dom,
			Lang = YAHOO.lang,
			Event = YAHOO.util.Event;
			/**
			* The default node presentation. The first parameter should be
			* either a string that will be used as the node's label, or an object
			* that has at least a string property called label. By default, clicking the
			* label will toggle the expanded/collapsed state of the node. By
			* setting the href property of the instance, this behavior can be
			* changed so that the label will go to the specified href.
			* @namespace YAHOO.widget
			* @class TextNode
			* @extends YAHOO.widget.Node
			* @constructor
			* @param oData {object} a string or object containing the data that will
			* be used to render this node.
			* Providing a string is the same as providing an object with a single property named label.
			* All values in the oData will be used to set equally named properties in the node
			* as long as the node does have such properties, they are not undefined, private or functions.
			* All attributes are made available in noderef.data, which
			* can be used to store custom attributes. TreeView.getNode(s)ByProperty
			* can be used to retrieve a node by one of the attributes.
			* @param oParent {YAHOO.widget.Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded)
			*/
			YAHOO.widget.TextNode = function(oData, oParent, expanded) {

			if (oData) {
			if (Lang.isString(oData)) {
			oData = { label: oData };
			}
			this.init(oData, oParent, expanded);
			this.setUpLabel(oData);
			}

			};

			YAHOO.extend(YAHOO.widget.TextNode, YAHOO.widget.Node, {

			/**
			* The CSS class for the label href. Defaults to ygtvlabel, but can be
			* overridden to provide a custom presentation for a specific node.
			* @property labelStyle
			* @type string
			*/
			labelStyle: "ygtvlabel",

			/**
			* The derived element id of the label for this node
			* @property labelElId
			* @type string
			*/
			labelElId: null,

			/**
			* The text for the label. It is assumed that the oData parameter will
			* either be a string that will be used as the label, or an object that
			* has a property called "label" that we will use.
			* @property label
			* @type string
			*/
			label: null,

			/**
			* The text for the title (tooltip) for the label element
			* @property title
			* @type string
			*/
			title: null,

			/**
			* The href for the node's label. If one is not specified, the href will
			* be set so that it toggles the node.
			* @property href
			* @type string
			*/
			href: null,

			/**
			* The label href target, defaults to current window
			* @property target
			* @type string
			*/
			target: "_self",

			/**
			* The node type
			* @property _type
			* @private
			* @type string
			* @default "TextNode"
			*/
			_type: "TextNode",


			/**
			* Sets up the node label
			* @method setUpLabel
			* @param oData string containing the label, or an object with a label property
			*/
			setUpLabel: function(oData) {

			if (Lang.isString(oData)) {
			oData = {
			label: oData
			};
			} else {
			if (oData.style) {
			this.labelStyle = oData.style;
			}
			}

			this.label = oData.label;

			this.labelElId = "ygtvlabelel" + this.index;

			},

			/**
			* Returns the label element
			* @for YAHOO.widget.TextNode
			* @method getLabelEl
			* @return {object} the element
			*/
			getLabelEl: function() {
			return Dom.get(this.labelElId);
			},

			// overrides YAHOO.widget.Node
			getContentHtml: function() {
			var sb = [];
			sb[sb.length] = this.href?'<a':'<span';
			sb[sb.length] = ' id="' + this.labelElId + '"';
			sb[sb.length] = ' class="' + this.labelStyle + '"';
			if (this.href) {
			sb[sb.length] = ' href="' + this.href + '"';
			sb[sb.length] = ' target="' + this.target + '"';
			}
			if (this.title) {
			sb[sb.length] = ' title="' + this.title + '"';
			}
			sb[sb.length] = ' >';
			sb[sb.length] = this.label;
			sb[sb.length] = this.href?'</a>':'</span>';
			return sb.join("");
			},



			/**
			* Returns an object which could be used to build a tree out of this node and its children.
			* It can be passed to the tree constructor to reproduce this node as a tree.
			* It will return false if the node or any descendant loads dynamically, regardless of whether it is loaded or not.
			* @method getNodeDefinition
			* @return {Object \| false} definition of the tree or false if this node or any descendant is defined as dynamic
			*/
			getNodeDefinition: function() {
			var def = YAHOO.widget.TextNode.superclass.getNodeDefinition.call(this);
			if (def === false) { return false; }

			// Node specific properties
			def.label = this.label;
			if (this.labelStyle != 'ygtvlabel') { def.style = this.labelStyle; }
			if (this.title) { def.title = this.title; }
			if (this.href) { def.href = this.href; }
			if (this.target != '_self') { def.target = this.target; }

			return def;

			},

			toString: function() {
			return YAHOO.widget.TextNode.superclass.toString.call(this) + ": " + this.label;
			},

			// deprecated
			onLabelClick: function() {
			return false;
			},
			refresh: function() {
			YAHOO.widget.TextNode.superclass.refresh.call(this);
			var label = this.getLabelEl();
			label.innerHTML = this.label;
			if (label.tagName.toUpperCase() == 'A') {
			label.href = this.href;
			label.target = this.target;
			}
			}




			});
			})();

			/**
			* A menu-specific implementation that differs from TextNode in that only
			* one sibling can be expanded at a time.
			* @namespace YAHOO.widget
			* @class MenuNode
			* @extends YAHOO.widget.TextNode
			* @param oData {object} a string or object containing the data that will
			* be used to render this node.
			* Providing a string is the same as providing an object with a single property named label.
			* All values in the oData will be used to set equally named properties in the node
			* as long as the node does have such properties, they are not undefined, private or functions.
			* All attributes are made available in noderef.data, which
			* can be used to store custom attributes. TreeView.getNode(s)ByProperty
			* can be used to retrieve a node by one of the attributes.
			* @param oParent {YAHOO.widget.Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded)
			* @constructor
			*/
			YAHOO.widget.MenuNode = function(oData, oParent, expanded) {
			YAHOO.widget.MenuNode.superclass.constructor.call(this,oData,oParent,expanded);

			/*
			* Menus usually allow only one branch to be open at a time.
			*/
			this.multiExpand = false;

			};

			YAHOO.extend(YAHOO.widget.MenuNode, YAHOO.widget.TextNode, {

			/**
			* The node type
			* @property _type
			* @private
			* @default "MenuNode"
			*/
			_type: "MenuNode"

			});

			(function () {
			var Dom = YAHOO.util.Dom,
			Lang = YAHOO.lang,
			Event = YAHOO.util.Event;

			/**
			* This implementation takes either a string or object for the
			* oData argument. If is it a string, it will use it for the display
			* of this node (and it can contain any html code). If the parameter
			* is an object,it looks for a parameter called "html" that will be
			* used for this node's display.
			* @namespace YAHOO.widget
			* @class HTMLNode
			* @extends YAHOO.widget.Node
			* @constructor
			* @param oData {object} a string or object containing the data that will
			* be used to render this node.
			* Providing a string is the same as providing an object with a single property named html.
			* All values in the oData will be used to set equally named properties in the node
			* as long as the node does have such properties, they are not undefined, private or functions.
			* All other attributes are made available in noderef.data, which
			* can be used to store custom attributes. TreeView.getNode(s)ByProperty
			* can be used to retrieve a node by one of the attributes.
			* @param oParent {YAHOO.widget.Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded)
			* @param hasIcon {boolean} specifies whether or not leaf nodes should
			* be rendered with or without a horizontal line line and/or toggle icon. If the icon
			* is not displayed, the content fills the space it would have occupied.
			* This option operates independently of the leaf node presentation logic
			* for dynamic nodes.
			* (deprecated; use oData.hasIcon)
			*/
			YAHOO.widget.HTMLNode = function(oData, oParent, expanded, hasIcon) {
			if (oData) {
			this.init(oData, oParent, expanded);
			this.initContent(oData, hasIcon);
			}
			};

			YAHOO.extend(YAHOO.widget.HTMLNode, YAHOO.widget.Node, {

			/**
			* The CSS class for the html content container. Defaults to ygtvhtml, but
			* can be overridden to provide a custom presentation for a specific node.
			* @property contentStyle
			* @type string
			*/
			contentStyle: "ygtvhtml",


			/**
			* The HTML content to use for this node's display
			* @property html
			* @type string
			*/
			html: null,

			/**
			* The node type
			* @property _type
			* @private
			* @type string
			* @default "HTMLNode"
			*/
			_type: "HTMLNode",

			/**
			* Sets up the node label
			* @property initContent
			* @param oData {object} An html string or object containing an html property
			* @param hasIcon {boolean} determines if the node will be rendered with an
			* icon or not
			*/
			initContent: function(oData, hasIcon) {
			this.setHtml(oData);
			this.contentElId = "ygtvcontentel" + this.index;
			if (!Lang.isUndefined(hasIcon)) { this.hasIcon = hasIcon; }

			},

			/**
			* Synchronizes the node.html, and the node's content
			* @property setHtml
			* @param o {object} An html string or object containing an html property
			*/
			setHtml: function(o) {

			this.html = (typeof o === "string") ? o : o.html;

			var el = this.getContentEl();
			if (el) {
			el.innerHTML = this.html;
			}

			},

			// overrides YAHOO.widget.Node
			getContentHtml: function() {
			return this.html;
			},

			/**
			* Returns an object which could be used to build a tree out of this node and its children.
			* It can be passed to the tree constructor to reproduce this node as a tree.
			* It will return false if any node loads dynamically, regardless of whether it is loaded or not.
			* @method getNodeDefinition
			* @return {Object \| false} definition of the tree or false if any node is defined as dynamic
			*/
			getNodeDefinition: function() {
			var def = YAHOO.widget.HTMLNode.superclass.getNodeDefinition.call(this);
			if (def === false) { return false; }
			def.html = this.html;
			return def;

			}
			});
			})();

			(function () {
			var Dom = YAHOO.util.Dom,
			Lang = YAHOO.lang,
			Event = YAHOO.util.Event,
			Calendar = YAHOO.widget.Calendar;

			/**
			* A Date-specific implementation that differs from TextNode in that it uses
			* YAHOO.widget.Calendar as an in-line editor, if available
			* If Calendar is not available, it behaves as a plain TextNode.
			* @namespace YAHOO.widget
			* @class DateNode
			* @extends YAHOO.widget.TextNode
			* @param oData {object} a string or object containing the data that will
			* be used to render this node.
			* Providing a string is the same as providing an object with a single property named label.
			* All values in the oData will be used to set equally named properties in the node
			* as long as the node does have such properties, they are not undefined, private nor functions.
			* All attributes are made available in noderef.data, which
			* can be used to store custom attributes. TreeView.getNode(s)ByProperty
			* can be used to retrieve a node by one of the attributes.
			* @param oParent {YAHOO.widget.Node} this node's parent node
			* @param expanded {boolean} the initial expanded/collapsed state (deprecated; use oData.expanded)
			* @constructor
			*/
			YAHOO.widget.DateNode = function(oData, oParent, expanded) {
			YAHOO.widget.DateNode.superclass.constructor.call(this,oData, oParent, expanded);
			};

			YAHOO.extend(YAHOO.widget.DateNode, YAHOO.widget.TextNode, {

			/**
			* The node type
			* @property _type
			* @type string
			* @private
			* @default "DateNode"
			*/
			_type: "DateNode",

			/**
			* Configuration object for the Calendar editor, if used.
			* See <a href="http://developer.yahoo.com/yui/calendar/#internationalization">http://developer.yahoo.com/yui/calendar/#internationalization</a>
			* @property calendarConfig
			*/
			calendarConfig: null,



			/**
			* If YAHOO.widget.Calendar is available, it will pop up a Calendar to enter a new date. Otherwise, it falls back to a plain <input> textbox
			* @method fillEditorContainer
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return void
			*/
			fillEditorContainer: function (editorData) {

			var cal, container = editorData.inputContainer;

			if (Lang.isUndefined(Calendar)) {
			Dom.replaceClass(editorData.editorPanel,'ygtv-edit-DateNode','ygtv-edit-TextNode');
			YAHOO.widget.DateNode.superclass.fillEditorContainer.call(this, editorData);
			return;
			}

			if (editorData.nodeType != this._type) {
			editorData.nodeType = this._type;
			editorData.saveOnEnter = false;

			editorData.node.destroyEditorContents(editorData);

			editorData.inputObject = cal = new Calendar(container.appendChild(document.createElement('div')));
			if (this.calendarConfig) {
			cal.cfg.applyConfig(this.calendarConfig,true);
			cal.cfg.fireQueue();
			}
			cal.selectEvent.subscribe(function () {
			this.tree._closeEditor(true);
			},this,true);
			} else {
			cal = editorData.inputObject;
			}

			editorData.oldValue = this.label;
			cal.cfg.setProperty("selected",this.label, false);

			var delim = cal.cfg.getProperty('DATE_FIELD_DELIMITER');
			var pageDate = this.label.split(delim);
			cal.cfg.setProperty('pagedate',pageDate[cal.cfg.getProperty('MDY_MONTH_POSITION') -1] + delim + pageDate[cal.cfg.getProperty('MDY_YEAR_POSITION') -1]);
			cal.cfg.fireQueue();

			cal.render();
			cal.oDomContainer.focus();
			},
			/**
			* Returns the value from the input element.
			* Overrides Node.getEditorValue.
			* @method getEditorValue
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return {string} date entered
			*/

			getEditorValue: function (editorData) {
			if (Lang.isUndefined(Calendar)) {
			return editorData.inputElement.value;
			} else {
			var cal = editorData.inputObject,
			date = cal.getSelectedDates()[0],
			dd = [];

			dd[cal.cfg.getProperty('MDY_DAY_POSITION') -1] = date.getDate();
			dd[cal.cfg.getProperty('MDY_MONTH_POSITION') -1] = date.getMonth() + 1;
			dd[cal.cfg.getProperty('MDY_YEAR_POSITION') -1] = date.getFullYear();
			return dd.join(cal.cfg.getProperty('DATE_FIELD_DELIMITER'));
			}
			},

			/**
			* Finally displays the newly entered date in the tree.
			* Overrides Node.displayEditedValue.
			* @method displayEditedValue
			* @param value {string} date to be displayed and stored in the node
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			*/
			displayEditedValue: function (value,editorData) {
			var node = editorData.node;
			node.label = value;
			node.getLabelEl().innerHTML = value;
			},
			/**
			* Returns an object which could be used to build a tree out of this node and its children.
			* It can be passed to the tree constructor to reproduce this node as a tree.
			* It will return false if the node or any descendant loads dynamically, regardless of whether it is loaded or not.
			* @method getNodeDefinition
			* @return {Object \| false} definition of the node or false if this node or any descendant is defined as dynamic
			*/
			getNodeDefinition: function() {
			var def = YAHOO.widget.DateNode.superclass.getNodeDefinition.call(this);
			if (def === false) { return false; }
			if (this.calendarConfig) { def.calendarConfig = this.calendarConfig; }
			return def;
			}


			});
			})();

			(function () {
			var Dom = YAHOO.util.Dom,
			Lang = YAHOO.lang,
			Event = YAHOO.util.Event,
			TV = YAHOO.widget.TreeView,
			TVproto = TV.prototype;

			/**
			* An object to store information used for in-line editing
			* for all Nodes of all TreeViews. It contains:
			* <ul>
			* <li>active {boolean}, whether there is an active cell editor </li>
			* <li>whoHasIt {YAHOO.widget.TreeView} TreeView instance that is currently using the editor</li>
			* <li>nodeType {string} value of static Node._type property, allows reuse of input element if node is of the same type.</li>
			* <li>editorPanel {HTMLelement (<div>)} element holding the in-line editor</li>
			* <li>inputContainer {HTMLelement (<div>)} element which will hold the type-specific input element(s) to be filled by the fillEditorContainer method</li>
			* <li>buttonsContainer {HTMLelement (<div>)} element which holds the <button> elements for Ok/Cancel. If you don't want any of the buttons, hide it via CSS styles, don't destroy it</li>
			* <li>node {YAHOO.widget.Node} reference to the Node being edited</li>
			* <li>saveOnEnter {boolean}, whether the Enter key should be accepted as a Save command (Esc. is always taken as Cancel), disable for multi-line input elements </li>
			* <li>oldValue {any} value before editing</li>
			* </ul>
			* Editors are free to use this object to store additional data.
			* @property editorData
			* @static
			* @for YAHOO.widget.TreeView
			*/
			TV.editorData = {
			active:false,
			whoHasIt:null, // which TreeView has it
			nodeType:null,
			editorPanel:null,
			inputContainer:null,
			buttonsContainer:null,
			node:null, // which Node is being edited
			saveOnEnter:true,
			oldValue:undefined
			// Each node type is free to add its own properties to this as it sees fit.
			};

			/**
			* Validator function for edited data, called from the TreeView instance scope,
			* receives the arguments (newValue, oldValue, nodeInstance)
			* and returns either the validated (or type-converted) value or undefined.
			* An undefined return will prevent the editor from closing
			* @property validator
			* @type function
			* @default null
			* @for YAHOO.widget.TreeView
			*/
			TVproto.validator = null;

			/**
			* Entry point for initializing the editing plug-in.
			* TreeView will call this method on initializing if it exists
			* @method _initEditor
			* @for YAHOO.widget.TreeView
			* @private
			*/

			TVproto._initEditor = function () {
			/**
			* Fires when the user clicks on the ok button of a node editor
			* @event editorSaveEvent
			* @type CustomEvent
			* @param oArgs.newValue {mixed} the new value just entered
			* @param oArgs.oldValue {mixed} the value originally in the tree
			* @param oArgs.node {YAHOO.widget.Node} the node that has the focus
			* @for YAHOO.widget.TreeView
			*/
			this.createEvent("editorSaveEvent", this);

			/**
			* Fires when the user clicks on the cancel button of a node editor
			* @event editorCancelEvent
			* @type CustomEvent
			* @param {YAHOO.widget.Node} node the node that has the focus
			* @for YAHOO.widget.TreeView
			*/
			this.createEvent("editorCancelEvent", this);

			};

			/**
			* Entry point of the editing plug-in.
			* TreeView will call this method if it exists when a node label is clicked
			* @method _nodeEditing
			* @param node {YAHOO.widget.Node} the node to be edited
			* @return {Boolean} true to indicate that the node is editable and prevent any further bubbling of the click.
			* @for YAHOO.widget.TreeView
			* @private
			*/



			TVproto._nodeEditing = function (node) {
			if (node.fillEditorContainer && node.editable) {
			var ed, topLeft, buttons, button, editorData = TV.editorData;
			editorData.active = true;
			editorData.whoHasIt = this;
			if (!editorData.nodeType) {
			editorData.editorPanel = ed = document.body.appendChild(document.createElement('div'));
			Dom.addClass(ed,'ygtv-label-editor');

			buttons = editorData.buttonsContainer = ed.appendChild(document.createElement('div'));
			Dom.addClass(buttons,'ygtv-button-container');
			button = buttons.appendChild(document.createElement('button'));
			Dom.addClass(button,'ygtvok');
			button.innerHTML = ' ';
			button = buttons.appendChild(document.createElement('button'));
			Dom.addClass(button,'ygtvcancel');
			button.innerHTML = ' ';
			Event.on(buttons, 'click', function (ev) {
			var target = Event.getTarget(ev);
			var node = TV.editorData.node;
			if (Dom.hasClass(target,'ygtvok')) {
			Event.stopEvent(ev);
			this._closeEditor(true);
			}
			if (Dom.hasClass(target,'ygtvcancel')) {
			Event.stopEvent(ev);
			this._closeEditor(false);
			}
			}, this, true);

			editorData.inputContainer = ed.appendChild(document.createElement('div'));
			Dom.addClass(editorData.inputContainer,'ygtv-input');

			Event.on(ed,'keydown',function (ev) {
			var editorData = TV.editorData,
			KEY = YAHOO.util.KeyListener.KEY;
			switch (ev.keyCode) {
			case KEY.ENTER:
			Event.stopEvent(ev);
			if (editorData.saveOnEnter) {
			this._closeEditor(true);
			}
			break;
			case KEY.ESCAPE:
			Event.stopEvent(ev);
			this._closeEditor(false);
			break;
			}
			},this,true);



			} else {
			ed = editorData.editorPanel;
			}
			editorData.node = node;
			if (editorData.nodeType) {
			Dom.removeClass(ed,'ygtv-edit-' + editorData.nodeType);
			}
			Dom.addClass(ed,' ygtv-edit-' + node._type);
			topLeft = Dom.getXY(node.getContentEl());
			Dom.setStyle(ed,'left',topLeft[0] + 'px');
			Dom.setStyle(ed,'top',topLeft[1] + 'px');
			Dom.setStyle(ed,'display','block');
			ed.focus();
			node.fillEditorContainer(editorData);

			return true; // If inline editor available, don't do anything else.
			}
			};

			/**
			* Method to be associated with an event (clickEvent, dblClickEvent or enterKeyPressed) to pop up the contents editor
			* It calls the corresponding node editNode method.
			* @method onEventEditNode
			* @param oArgs {object} Object passed as arguments to TreeView event listeners
			* @for YAHOO.widget.TreeView
			*/

			TVproto.onEventEditNode = function (oArgs) {
			if (oArgs instanceof YAHOO.widget.Node) {
			oArgs.editNode();
			} else if (oArgs.node instanceof YAHOO.widget.Node) {
			oArgs.node.editNode();
			}
			};

			/**
			* Method to be called when the inline editing is finished and the editor is to be closed
			* @method _closeEditor
			* @param save {Boolean} true if the edited value is to be saved, false if discarded
			* @private
			* @for YAHOO.widget.TreeView
			*/

			TVproto._closeEditor = function (save) {
			var ed = TV.editorData,
			node = ed.node,
			close = true;
			if (save) {
			close = ed.node.saveEditorValue(ed) !== false;
			} else {
			this.fireEvent( 'editorCancelEvent', node);
			}

			if (close) {
			Dom.setStyle(ed.editorPanel,'display','none');
			ed.active = false;
			node.focus();
			}
			};

			/**
			* Entry point for TreeView's destroy method to destroy whatever the editing plug-in has created
			* @method _destroyEditor
			* @private
			* @for YAHOO.widget.TreeView
			*/
			TVproto._destroyEditor = function() {
			var ed = TV.editorData;
			if (ed && ed.nodeType && (!ed.active \|\| ed.whoHasIt === this)) {
			Event.removeListener(ed.editorPanel,'keydown');
			Event.removeListener(ed.buttonContainer,'click');
			ed.node.destroyEditorContents(ed);
			document.body.removeChild(ed.editorPanel);
			ed.nodeType = ed.editorPanel = ed.inputContainer = ed.buttonsContainer = ed.whoHasIt = ed.node = null;
			ed.active = false;
			}
			};

			var Nproto = YAHOO.widget.Node.prototype;

			/**
			* Signals if the label is editable. (Ignored on TextNodes with href set.)
			* @property editable
			* @type boolean
			* @for YAHOO.widget.Node
			*/
			Nproto.editable = false;

			/**
			* pops up the contents editor, if there is one and the node is declared editable
			* @method editNode
			* @for YAHOO.widget.Node
			*/

			Nproto.editNode = function () {
			this.tree._nodeEditing(this);
			};




			/** Placeholder for a function that should provide the inline node label editor.
			* Leaving it set to null will indicate that this node type is not editable.
			* It should be overridden by nodes that provide inline editing.
			* The Node-specific editing element (input box, textarea or whatever) should be inserted into editorData.inputContainer.
			* @method fillEditorContainer
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return void
			* @for YAHOO.widget.Node
			*/
			Nproto.fillEditorContainer = null;


			/**
			* Node-specific destroy function to empty the contents of the inline editor panel.
			* This function is the worst case alternative that will purge all possible events and remove the editor contents.
			* Method Event.purgeElement is somewhat costly so if it can be replaced by specifc Event.removeListeners, it is better to do so.
			* @method destroyEditorContents
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @for YAHOO.widget.Node
			*/
			Nproto.destroyEditorContents = function (editorData) {
			// In the worst case, if the input editor (such as the Calendar) has no destroy method
			// we can only try to remove all possible events on it.
			Event.purgeElement(editorData.inputContainer,true);
			editorData.inputContainer.innerHTML = '';
			};

			/**
			* Saves the value entered into the editor.
			* @method saveEditorValue
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return {false or none} a return of exactly false will prevent the editor from closing
			* @for YAHOO.widget.Node
			*/
			Nproto.saveEditorValue = function (editorData) {
			var node = editorData.node,
			value,
			validator = node.tree.validator;

			value = this.getEditorValue(editorData);

			if (Lang.isFunction(validator)) {
			value = validator(value,editorData.oldValue,node);
			if (Lang.isUndefined(value)) {
			return false;
			}
			}

			if (this.tree.fireEvent( 'editorSaveEvent', {
			newValue:value,
			oldValue:editorData.oldValue,
			node:node
			}) !== false) {
			this.displayEditedValue(value,editorData);
			}
			};


			/**
			* Returns the value(s) from the input element(s) .
			* Should be overridden by each node type.
			* @method getEditorValue
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return {any} value entered
			* @for YAHOO.widget.Node
			*/

			Nproto.getEditorValue = function (editorData) {
			};

			/**
			* Finally displays the newly edited value(s) in the tree.
			* Should be overridden by each node type.
			* @method displayEditedValue
			* @param value {any} value to be displayed and stored in the node
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @for YAHOO.widget.Node
			*/
			Nproto.displayEditedValue = function (value,editorData) {
			};

			var TNproto = YAHOO.widget.TextNode.prototype;



			/**
			* Places an <input> textbox in the input container and loads the label text into it.
			* @method fillEditorContainer
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return void
			* @for YAHOO.widget.TextNode
			*/
			TNproto.fillEditorContainer = function (editorData) {

			var input;
			// If last node edited is not of the same type as this one, delete it and fill it with our editor
			if (editorData.nodeType != this._type) {
			editorData.nodeType = this._type;
			editorData.saveOnEnter = true;
			editorData.node.destroyEditorContents(editorData);

			editorData.inputElement = input = editorData.inputContainer.appendChild(document.createElement('input'));

			} else {
			// if the last node edited was of the same time, reuse the input element.
			input = editorData.inputElement;
			}
			editorData.oldValue = this.label;
			input.value = this.label;
			input.focus();
			input.select();
			};

			/**
			* Returns the value from the input element.
			* Overrides Node.getEditorValue.
			* @method getEditorValue
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @return {string} value entered
			* @for YAHOO.widget.TextNode
			*/

			TNproto.getEditorValue = function (editorData) {
			return editorData.inputElement.value;
			};

			/**
			* Finally displays the newly edited value in the tree.
			* Overrides Node.displayEditedValue.
			* @method displayEditedValue
			* @param value {string} value to be displayed and stored in the node
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @for YAHOO.widget.TextNode
			*/
			TNproto.displayEditedValue = function (value,editorData) {
			var node = editorData.node;
			node.label = value;
			node.getLabelEl().innerHTML = value;
			};

			/**
			* Destroys the contents of the inline editor panel.
			* Overrides Node.destroyEditorContent.
			* Since we didn't set any event listeners on this inline editor, it is more efficient to avoid the generic method in Node.
			* @method destroyEditorContents
			* @param editorData {YAHOO.widget.TreeView.editorData} a shortcut to the static object holding editing information
			* @for YAHOO.widget.TextNode
			*/
			TNproto.destroyEditorContents = function (editorData) {
			editorData.inputContainer.innerHTML = '';
			};
			})();

			/**
			* A static factory class for tree view expand/collapse animations
			* @class TVAnim
			* @static
			*/
			YAHOO.widget.TVAnim = function() {
			return {
			/**
			* Constant for the fade in animation
			* @property FADE_IN
			* @type string
			* @static
			*/
			FADE_IN: "TVFadeIn",

			/**
			* Constant for the fade out animation
			* @property FADE_OUT
			* @type string
			* @static
			*/
			FADE_OUT: "TVFadeOut",

			/**
			* Returns a ygAnim instance of the given type
			* @method getAnim
			* @param type {string} the type of animation
			* @param el {HTMLElement} the element to element (probably the children div)
			* @param callback {function} function to invoke when the animation is done.
			* @return {YAHOO.util.Animation} the animation instance
			* @static
			*/
			getAnim: function(type, el, callback) {
			if (YAHOO.widget[type]) {
			return new YAHOO.widget[type](el, callback);
			} else {
			return null;
			}
			},

			/**
			* Returns true if the specified animation class is available
			* @method isValid
			* @param type {string} the type of animation
			* @return {boolean} true if valid, false if not
			* @static
			*/
			isValid: function(type) {
			return (YAHOO.widget[type]);
			}
			};
			} ();

			/**
			* A 1/2 second fade-in animation.
			* @class TVFadeIn
			* @constructor
			* @param el {HTMLElement} the element to animate
			* @param callback {function} function to invoke when the animation is finished
			*/
			YAHOO.widget.TVFadeIn = function(el, callback) {
			/**
			* The element to animate
			* @property el
			* @type HTMLElement
			*/
			this.el = el;

			/**
			* the callback to invoke when the animation is complete
			* @property callback
			* @type function
			*/
			this.callback = callback;

			};

			YAHOO.widget.TVFadeIn.prototype = {
			/**
			* Performs the animation
			* @method animate
			*/
			animate: function() {
			var tvanim = this;

			var s = this.el.style;
			s.opacity = 0.1;
			s.filter = "alpha(opacity=10)";
			s.display = "";

			var dur = 0.4;
			var a = new YAHOO.util.Anim(this.el, {opacity: {from: 0.1, to: 1, unit:""}}, dur);
			a.onComplete.subscribe( function() { tvanim.onComplete(); } );
			a.animate();
			},

			/**
			* Clean up and invoke callback
			* @method onComplete
			*/
			onComplete: function() {
			this.callback();
			},

			/**
			* toString
			* @method toString
			* @return {string} the string representation of the instance
			*/
			toString: function() {
			return "TVFadeIn";
			}
			};

			/**
			* A 1/2 second fade out animation.
			* @class TVFadeOut
			* @constructor
			* @param el {HTMLElement} the element to animate
			* @param callback {Function} function to invoke when the animation is finished
			*/
			YAHOO.widget.TVFadeOut = function(el, callback) {
			/**
			* The element to animate
			* @property el
			* @type HTMLElement
			*/
			this.el = el;

			/**
			* the callback to invoke when the animation is complete
			* @property callback
			* @type function
			*/
			this.callback = callback;

			};

			YAHOO.widget.TVFadeOut.prototype = {
			/**
			* Performs the animation
			* @method animate
			*/
			animate: function() {
			var tvanim = this;
			var dur = 0.4;
			var a = new YAHOO.util.Anim(this.el, {opacity: {from: 1, to: 0.1, unit:""}}, dur);
			a.onComplete.subscribe( function() { tvanim.onComplete(); } );
			a.animate();
			},

			/**
			* Clean up and invoke callback
			* @method onComplete
			*/
			onComplete: function() {
			var s = this.el.style;
			s.display = "none";
			s.opacity = 1;
			s.filter = "alpha(opacity=100)";
			this.callback();
			},

			/**
			* toString
			* @method toString
			* @return {string} the string representation of the instance
			*/
			toString: function() {
			return "TVFadeOut";
			}
			};

			YAHOO.register("treeview", YAHOO.widget.TreeView, {version: "2.8.2r1", build: "7"});

shrine-medco/shrine-webclient/src/main/html/js-ext/yui/build/treeview/treeview.js43ea50b774acrelease/1.22.2.4

treeview.jsView Options

shrine-medco/shrine-webclient/src/main/html/js-ext/yui/build/treeview/treeview.js
43ea50b774acrelease/1.22.2.4

treeview.js
View Options