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r10780 - in trunk/documentation/topic/cms: css images images/treeview js: msg#00013

Subject: r10780 - in trunk/documentation/topic/cms: css images images/treeview js
Author: housel
Date: Tue Jun  6 07:55:53 2006
New Revision: 10780

Added:
   trunk/documentation/topic/cms/css/
   trunk/documentation/topic/cms/css/tree.css   (contents, props changed)
   trunk/documentation/topic/cms/images/
   trunk/documentation/topic/cms/images/treeview/
   trunk/documentation/topic/cms/images/treeview/lm.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/lmh.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/ln.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/loading.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/lp.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/lph.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/tm.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/tmh.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/tn.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/tp.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/tph.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/images/treeview/vline.gif   (contents, props 
changed)
   trunk/documentation/topic/cms/js/
   trunk/documentation/topic/cms/js/event.js   (contents, props changed)
   trunk/documentation/topic/cms/js/treeview.js   (contents, props changed)
   trunk/documentation/topic/cms/js/yahoo.js   (contents, props changed)
Log:
Bug: 7249
Import the treeview control, adapted from version 0.10.0 of the Yahoo! User
Interface Library.


Added: trunk/documentation/topic/cms/css/tree.css
==============================================================================
--- (empty file)
+++ trunk/documentation/topic/cms/css/tree.css  Tue Jun  6 07:55:53 2006
@@ -0,0 +1,98 @@
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/* first or middle sibling, no children */
+.ygtvtn {
+       width:16px; height:22px; 
+       background: url(../images/treeview/tn.gif) 0 0 no-repeat; 
+}
+
+/* first or middle sibling, collapsable */
+.ygtvtm {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/tm.gif) 0 0 no-repeat; 
+}
+
+/* first or middle sibling, collapsable, hover */
+.ygtvtmh {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/tmh.gif) 0 0 no-repeat; 
+}
+
+/* first or middle sibling, expandable */
+.ygtvtp {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/tp.gif) 0 0 no-repeat; 
+}
+
+/* first or middle sibling, expandable, hover */
+.ygtvtph {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/tph.gif) 0 0 no-repeat; 
+}
+
+/* last sibling, no children */
+.ygtvln {
+       width:16px; height:22px; 
+       background: url(../images/treeview/ln.gif) 0 0 no-repeat; 
+}
+
+/* Last sibling, collapsable */
+.ygtvlm {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/lm.gif) 0 0 no-repeat; 
+}
+
+/* Last sibling, collapsable, hover */
+.ygtvlmh {
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/lmh.gif) 0 0 no-repeat; 
+}
+
+/* Last sibling, expandable */
+.ygtvlp { 
+       width:16px; height:22px; 
+       cursor:pointer ;
+       background: url(../images/treeview/lp.gif) 0 0 no-repeat; 
+}
+
+/* Last sibling, expandable, hover */
+.ygtvlph { 
+       width:16px; height:22px; cursor:pointer ;
+       background: url(../images/treeview/lph.gif) 0 0 no-repeat; 
+}
+
+/* Loading icon */
+.ygtvloading { 
+       width:16px; height:22px; 
+       background: url(../images/treeview/loading.gif) 0 0 no-repeat; 
+}
+
+/* the style for the empty cells that are used for rendering the depth 
+ * of the node */
+.ygtvdepthcell { 
+       width:16px; height:22px; 
+       background: url(../images/treeview/vline.gif) 0 0 no-repeat; 
+}
+
+.ygtvblankdepthcell { width:16px; height:22px; }
+
+/* the style of the div around each node */
+.ygtvitem { }  
+
+/* the style of the div around each node's collection of children */
+.ygtvchildren { }  
+* html .ygtvchildren { height:2%; }  
+
+/* the style of the text label in ygTextNode */
+.ygtvlabel, .ygtvlabel:link, .ygtvlabel:visited, .ygtvlabel:hover { 
+       margin-left:2px;
+       text-decoration: none;
+}
+
+.ygtvspacer { height: 10px; width: 10px; margin: 2px; }

Added: trunk/documentation/topic/cms/images/treeview/lm.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/lmh.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/ln.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/loading.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/lp.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/lph.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/tm.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/tmh.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/tn.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/tp.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/tph.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/images/treeview/vline.gif
==============================================================================
Binary file. No diff available.

Added: trunk/documentation/topic/cms/js/event.js
==============================================================================
--- (empty file)
+++ trunk/documentation/topic/cms/js/event.js   Tue Jun  6 07:55:53 2006
@@ -0,0 +1,1096 @@
+/*                                                                             
                                                                         
+Copyright (c) 2006, Yahoo! Inc. All rights reserved.                           
                                                                         
+Code licensed under the BSD License:                                           
                                                                         
+http://developer.yahoo.net/yui/license.txt                                     
                                                                         
+version: 0.10.0                                                                
                                                                         
+*/ 
+
+/**
+ * The CustomEvent class lets you define events for your application
+ * that can be subscribed to by one or more independent component.
+ *
+ * @param {String} type The type of event, which is passed to the callback
+ *                 when the event fires
+ * @param {Object} oScope The context the event will fire from.  "this" will
+ *                 refer to this object in the callback.  Default value: 
+ *                 the window object.  The listener can override this.
+ * @constructor
+ */
+YAHOO.util.CustomEvent = function(type, oScope) {
+    /**
+     * The type of event, returned to subscribers when the event fires
+     * @type string
+     */
+    this.type = type;
+
+    /**
+     * The scope the the event will fire from by default.  Defaults to the 
window 
+     * obj
+     * @type object
+     */
+    this.scope = oScope || window;
+
+    /**
+     * The subscribers to this event
+     * @type Subscriber[]
+     */
+    this.subscribers = [];
+
+    // Register with the event utility for automatic cleanup.  Made optional
+    // so that CustomEvent can be used independently of pe.event
+    if (YAHOO.util.Event) { 
+        YAHOO.util.Event.regCE(this);
+    }
+};
+
+YAHOO.util.CustomEvent.prototype = {
+    /**
+     * Subscribes the caller to this event
+     * @param {Function} fn       The function to execute
+     * @param {Object}   obj      An object to be passed along when the event 
fires
+     * @param {boolean}  bOverride If true, the obj passed in becomes the 
execution
+     *                            scope of the listener
+     */
+    subscribe: function(fn, obj, bOverride) {
+        this.subscribers.push( new YAHOO.util.Subscriber(fn, obj, bOverride) );
+    },
+
+    /**
+     * Unsubscribes the caller from this event
+     * @param {Function} fn  The function to execute
+     * @param {Object}   obj An object to be passed along when the event fires
+     * @return {boolean} True if the subscriber was found and detached.
+     */
+    unsubscribe: function(fn, obj) {
+        var found = false;
+        for (var i=0, len=this.subscribers.length; i<len; ++i) {
+            var s = this.subscribers[i];
+            if (s && s.contains(fn, obj)) {
+                this._delete(i);
+                found = true;
+            }
+        }
+
+        return found;
+    },
+
+    /**
+     * Notifies the subscribers.  The callback functions will be executed
+     * from the scope specified when the event was created, and with the 
following
+     * parameters:
+     *   <pre>
+     *   - The type of event
+     *   - All of the arguments fire() was executed with as an array
+     *   - The custom object (if any) that was passed into the subscribe() 
method
+     *   </pre>
+     *   
+     * @param {Array} an arbitrary set of parameters to pass to the handler
+     */
+    fire: function() {
+        for (var i=0, len=this.subscribers.length; i<len; ++i) {
+            var s = this.subscribers[i];
+            if (s) {
+                var scope = (s.override) ? s.obj : this.scope;
+                s.fn.call(scope, this.type, arguments, s.obj);
+            }
+        }
+    },
+
+    /**
+     * Removes all listeners
+     */
+    unsubscribeAll: function() {
+        for (var i=0, len=this.subscribers.length; i<len; ++i) {
+            this._delete(i);
+        }
+    },
+
+    /**
+     * @private
+     */
+    _delete: function(index) {
+        var s = this.subscribers[index];
+        if (s) {
+            delete s.fn;
+            delete s.obj;
+        }
+
+        delete this.subscribers[index];
+    }
+};
+
+/////////////////////////////////////////////////////////////////////
+
+/**
+ * @class Stores the subscriber information to be used when the event fires.
+ * @param {Function} fn       The function to execute
+ * @param {Object}   obj      An object to be passed along when the event fires
+ * @param {boolean}  bOverride If true, the obj passed in becomes the execution
+ *                            scope of the listener
+ * @constructor
+ */
+YAHOO.util.Subscriber = function(fn, obj, bOverride) {
+    /**
+     * The callback that will be execute when the event fires
+     * @type function
+     */
+    this.fn = fn;
+
+    /**
+     * An optional custom object that will passed to the callback when
+     * the event fires
+     * @type object
+     */
+    this.obj = obj || null;
+
+    /**
+     * The default execution scope for the event listener is defined when the
+     * event is created (usually the object which contains the event).
+     * By setting override to true, the execution scope becomes the custom
+     * object passed in by the subscriber
+     * @type boolean
+     */
+    this.override = (bOverride);
+};
+
+/**
+ * Returns true if the fn and obj match this objects properties.
+ * Used by the unsubscribe method to match the right subscriber.
+ *
+ * @param {Function} fn the function to execute
+ * @param {Object} obj an object to be passed along when the event fires
+ * @return {boolean} true if the supplied arguments match this 
+ *                   subscriber's signature.
+ */
+YAHOO.util.Subscriber.prototype.contains = function(fn, obj) {
+    return (this.fn == fn && this.obj == obj);
+};
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+// Only load this library once.  If it is loaded a second time, existing
+// events cannot be detached.
+if (!YAHOO.util.Event) {
+
+/**
+ * @class
+ * The event utility provides functions to add and remove event listeners,
+ * event cleansing.  It also tries to automatically remove listeners it
+ * registers during the unload event.
+ * @constructor
+ */
+    YAHOO.util.Event = function() {
+
+        /**
+         * True after the onload event has fired
+         * @type boolean
+         * @private
+         */
+        var loadComplete =  false;
+
+        /**
+         * Cache of wrapped listeners
+         * @type array
+         * @private
+         */
+        var listeners = [];
+
+        /**
+         * Listeners that will be attached during the onload event
+         * @type array
+         * @private
+         */
+        var delayedListeners = [];
+
+        /**
+         * User-defined unload function that will be fired before all events
+         * are detached
+         * @type array
+         * @private
+         */
+        var unloadListeners = [];
+
+        /**
+         * Cache of the custom events that have been defined.  Used for
+         * automatic cleanup
+         * @type array
+         * @private
+         */
+        var customEvents = [];
+
+        /**
+         * Cache of DOM0 event handlers to work around issues with DOM2 events
+         * in Safari
+         * @private
+         */
+        var legacyEvents = [];
+
+        /**
+         * Listener stack for DOM0 events
+         * @private
+         */
+        var legacyHandlers = [];
+
+        /**
+         * The number of times to poll after window.onload.  This number is
+         * increased if additional late-bound handlers are requested after
+         * the page load.
+         * @private
+         */
+        var retryCount = 0;
+
+        /**
+         * onAvailable listeners
+         * @private
+         */
+        var onAvailStack = [];
+
+        /**
+         * Lookup table for legacy events
+         * @private
+         */
+        var legacyMap = [];
+
+        /**
+         * Counter for auto id generation
+         * @private
+         */
+        var counter = 0;
+
+        return { // PREPROCESS
+
+            /**
+             * The number of times we should look for elements that are not
+             * in the DOM at the time the event is requested after the document
+             * has been loaded.  The default is 200@50 ms, so it will poll
+             * for 10 seconds or until all outstanding handlers are bound
+             * (whichever comes first).
+             * @type int
+             */
+            POLL_RETRYS: 200,
+
+            /**
+             * The poll interval in milliseconds
+             * @type int
+             */
+            POLL_INTERVAL: 50,
+
+            /**
+             * Element to bind, int constant
+             * @type int
+             */
+            EL: 0,
+
+            /**
+             * Type of event, int constant
+             * @type int
+             */
+            TYPE: 1,
+
+            /**
+             * Function to execute, int constant
+             * @type int
+             */
+            FN: 2,
+
+            /**
+             * Function wrapped for scope correction and cleanup, int constant
+             * @type int
+             */
+            WFN: 3,
+
+            /**
+             * Object passed in by the user that will be returned as a 
+             * parameter to the callback, int constant
+             * @type int
+             */
+            SCOPE: 3,
+
+            /**
+             * Adjusted scope, either the element we are registering the event
+             * on or the custom object passed in by the listener, int constant
+             * @type int
+             */
+            ADJ_SCOPE: 4,
+
+            /**
+             * Safari detection is necessary to work around the preventDefault
+             * bug that makes it so you can't cancel a href click from the 
+             * handler.  There is not a capabilities check we can use here.
+             * @private
+             */
+            isSafari: (/Safari|Konqueror|KHTML/gi).test(navigator.userAgent),
+
+            /**
+             * IE detection needed to properly calculate pageX and pageY.  
+             * capabilities checking didn't seem to work because another 
+             * browser that does not provide the properties have the values 
+             * calculated in a different manner than IE.
+             * @private
+             */
+            isIE: (!this.isSafari && !navigator.userAgent.match(/opera/gi) && 
+                    navigator.userAgent.match(/msie/gi)),
+
+            /**
+             * @private
+             */
+            addDelayedListener: function(el, sType, fn, oScope, bOverride) {
+                delayedListeners[delayedListeners.length] =
+                    [el, sType, fn, oScope, bOverride];
+
+                // If this happens after the inital page load, we need to
+                // reset the poll counter so that we continue to search for
+                // the element for a fixed period of time.
+                if (loadComplete) {
+                    retryCount = this.POLL_RETRYS;
+                    this.startTimeout(0);
+                    // this._tryPreloadAttach();
+                }
+            },
+
+            /**
+             * @private
+             */
+            startTimeout: function(interval) {
+                var i = (interval || interval === 0) ? interval : 
this.POLL_INTERVAL;
+                var self = this;
+                var callback = function() { self._tryPreloadAttach(); };
+                this.timeout = setTimeout(callback, i);
+            },
+
+            /**
+             * Executes the supplied callback when the item with the supplied
+             * id is found.  This is meant to be used to execute behavior as
+             * soon as possible as the page loads.  If you use this after the
+             * initial page load it will poll for a fixed time for the element.
+             * The number of times it will poll and the frequency are
+             * configurable.  By default it will poll for 10 seconds.
+             * @param {string} p_id the id of the element to look for.
+             * @param {function} p_fn what to execute when the element is 
found.
+             * @param {object} p_obj an optional object to be passed back as
+             * a parameter to p_fn.
+             * @param {boolean} p_override If set to true, p_fn will execute
+             * in the scope of p_obj
+             *
+             */
+            onAvailable: function(p_id, p_fn, p_obj, p_override) {
+                onAvailStack.push( { id:       p_id, 
+                                     fn:       p_fn, 
+                                     obj:      p_obj, 
+                                     override: p_override } );
+
+                retryCount = this.POLL_RETRYS;
+                this.startTimeout(0);
+                // this._tryPreloadAttach();
+            },
+
+            /**
+             * Appends an event handler
+             *
+             * @param {Object}   el        The html element to assign the 
+             *                             event to
+             * @param {String}   sType     The type of event to append
+             * @param {Function} fn        The method the event invokes
+             * @param {Object}   oScope    An arbitrary object that will be 
+             *                             passed as a parameter to the handler
+             * @param {boolean}  bOverride If true, the obj passed in becomes
+             *                             the execution scope of the listener
+             * @return {boolean} True if the action was successful or defered,
+             *                        false if one or more of the elements 
+             *                        could not have the event bound to it.
+             */
+            addListener: function(el, sType, fn, oScope, bOverride) {
+
+                if (!fn || !fn.call) {
+                    return false;
+                }
+
+                // The el argument can be an array of elements or element ids.
+                if ( this._isValidCollection(el)) {
+                    var ok = true;
+                    for (var i=0,len=el.length; i<len; ++i) {
+                        ok = ( this.on(el[i], 
+                                       sType, 
+                                       fn, 
+                                       oScope, 
+                                       bOverride) && ok );
+                    }
+                    return ok;
+
+                } else if (typeof el == "string") {
+                    var oEl = this.getEl(el);
+                    // If the el argument is a string, we assume it is 
+                    // actually the id of the element.  If the page is loaded
+                    // we convert el to the actual element, otherwise we 
+                    // defer attaching the event until onload event fires
+
+                    // check to see if we need to delay hooking up the event 
+                    // until after the page loads.
+                    if (loadComplete && oEl) {
+                        el = oEl;
+                    } else {
+                        // defer adding the event until onload fires
+                        this.addDelayedListener(el, 
+                                                sType, 
+                                                fn, 
+                                                oScope, 
+                                                bOverride);
+
+                        return true;
+                    }
+                }
+
+                // Element should be an html element or an array if we get 
+                // here.
+                if (!el) {
+                    return false;
+                }
+
+                // we need to make sure we fire registered unload events 
+                // prior to automatically unhooking them.  So we hang on to 
+                // these instead of attaching them to the window and fire the
+                // handles explicitly during our one unload event.
+                if ("unload" == sType && oScope !== this) {
+                    unloadListeners[unloadListeners.length] =
+                            [el, sType, fn, oScope, bOverride];
+                    return true;
+                }
+
+
+                // if the user chooses to override the scope, we use the custom
+                // object passed in, otherwise the executing scope will be the
+                // HTML element that the event is registered on
+                var scope = (bOverride) ? oScope : el;
+
+                // wrap the function so we can return the oScope object when
+                // the event fires;
+                var wrappedFn = function(e) {
+                        return fn.call(scope, YAHOO.util.Event.getEvent(e), 
+                                oScope);
+                    };
+
+                var li = [el, sType, fn, wrappedFn, scope];
+                var index = listeners.length;
+                // cache the listener so we can try to automatically unload
+                listeners[index] = li;
+
+                if (this.useLegacyEvent(el, sType)) {
+                    var legacyIndex = this.getLegacyIndex(el, sType);
+                    if (legacyIndex == -1) {
+
+                        legacyIndex = legacyEvents.length;
+                        legacyMap[el.id + sType] = legacyIndex;
+
+                        // cache the signature for the DOM0 event, and 
+                        // include the existing handler for the event, if any
+                        legacyEvents[legacyIndex] = 
+                            [el, sType, el["on" + sType]];
+                        legacyHandlers[legacyIndex] = [];
+
+                        el["on" + sType] = 
+                            function(e) {
+                                YAHOO.util.Event.fireLegacyEvent(
+                                    YAHOO.util.Event.getEvent(e), legacyIndex);
+                            };
+                    }
+
+                    // add a reference to the wrapped listener to our custom
+                    // stack of events
+                    legacyHandlers[legacyIndex].push(index);
+
+                // DOM2 Event model
+                } else if (el.addEventListener) {
+                    el.addEventListener(sType, wrappedFn, false);
+                // Internet Explorer abstraction
+                } else if (el.attachEvent) {
+                    el.attachEvent("on" + sType, wrappedFn);
+                }
+
+                return true;
+                
+            },
+
+            /**
+             * Shorthand for YAHOO.util.Event.addListener
+             * @type function
+             */
+            // on: this.addListener,
+
+            /**
+             * When using legacy events, the handler is routed to this object
+             * so we can fire our custom listener stack.
+             * @private
+             */
+            fireLegacyEvent: function(e, legacyIndex) {
+                var ok = true;
+
+                var le = legacyHandlers[legacyIndex];
+                for (var i=0,len=le.length; i<len; ++i) {
+                    var index = le[i];
+                    if (index) {
+                        var li = listeners[index];
+                        if ( li && li[this.WFN] ) {
+                            var scope = li[this.ADJ_SCOPE];
+                            var ret = li[this.WFN].call(scope, e);
+                            ok = (ok && ret);
+                        } else {
+                            // This listener was removed, so delete it from
+                            // the array
+                            delete le[i];
+                        }
+                    }
+                }
+
+                return ok;
+            },
+
+            /**
+             * Returns the legacy event index that matches the supplied 
+             * signature
+             * @private
+             */
+            getLegacyIndex: function(el, sType) {
+                /*
+                for (var i=0,len=legacyEvents.length; i<len; ++i) {
+                    var le = legacyEvents[i];
+                    if (le && le[0] === el && le[1] === sType) {
+                        return i;
+                    }
+                }
+                return -1;
+                */
+
+                var key = this.generateId(el) + sType;
+                if (typeof legacyMap[key] == "undefined") { 
+                    return -1;
+                } else {
+                    return legacyMap[key];
+                }
+
+            },
+
+            /**
+             * Logic that determines when we should automatically use legacy
+             * events instead of DOM2 events.
+             * @private
+             */
+            useLegacyEvent: function(el, sType) {
+
+                if (!el.addEventListener && !el.attachEvent) {
+                    return true;
+                } else if (this.isSafari) {
+                    if ("click" == sType || "dblclick" == sType) {
+                        return true;
+                    }
+                }
+
+                return false;
+            },
+                    
+            /**
+             * Removes an event handler
+             *
+             * @param {Object} el the html element or the id of the element to 
+             * assign the event to.
+             * @param {String} sType the type of event to remove
+             * @param {Function} fn the method the event invokes
+             * @return {boolean} true if the unbind was successful, false 
+             * otherwise
+             */
+            removeListener: function(el, sType, fn, index) {
+
+                if (!fn || !fn.call) {
+                    return false;
+                }
+
+                // The el argument can be a string
+                if (typeof el == "string") {
+                    el = this.getEl(el);
+                // The el argument can be an array of elements or element ids.
+                } else if ( this._isValidCollection(el)) {
+                    var ok = true;
+                    for (var i=0,len=el.length; i<len; ++i) {
+                        ok = ( this.removeListener(el[i], sType, fn) && ok );
+                    }
+                    return ok;
+                }
+
+                if ("unload" == sType) {
+
+                    for (i=0, len=unloadListeners.length; i<len; i++) {
+                        var li = unloadListeners[i];
+                        if (li && 
+                            li[0] == el && 
+                            li[1] == sType && 
+                            li[2] == fn) {
+                                delete unloadListeners[i];
+                                return true;
+                        }
+                    }
+
+                    return false;
+                }
+
+                var cacheItem = null;
+  
+                if ("undefined" == typeof index) {
+                    index = this._getCacheIndex(el, sType, fn);
+                }
+
+                if (index >= 0) {
+                    cacheItem = listeners[index];
+                }
+
+                if (!el || !cacheItem) {
+                    return false;
+                }
+
+
+                if (el.removeEventListener) {
+                    el.removeEventListener(sType, cacheItem[this.WFN], false);
+                } else if (el.detachEvent) {
+                    el.detachEvent("on" + sType, cacheItem[this.WFN]);
+                }
+
+                // removed the wrapped handler
+                delete listeners[index][this.WFN];
+                delete listeners[index][this.FN];
+                delete listeners[index];
+
+                return true;
+
+            },
+
+            /**
+             * Returns the event's target element
+             * @param {Event} ev the event
+             * @param {boolean} resolveTextNode when set to true the target's
+             *                  parent will be returned if the target is a 
+             *                  text node
+             * @return {HTMLElement} the event's target
+             */
+            getTarget: function(ev, resolveTextNode) {
+                var t = ev.target || ev.srcElement;
+
+                if (resolveTextNode && t && "#text" == t.nodeName) {
+                    return t.parentNode;
+                } else {
+                    return t;
+                }
+            },
+
+            /**
+             * Returns the event's pageX
+             * @param {Event} ev the event
+             * @return {int} the event's pageX
+             */
+            getPageX: function(ev) {
+                var x = ev.pageX;
+                if (!x && 0 !== x) {
+                    x = ev.clientX || 0;
+
+                    if ( this.isIE ) {
+                        x += this._getScrollLeft();
+                    }
+                }
+
+                return x;
+            },
+
+            /**
+             * Returns the event's pageY
+             * @param {Event} ev the event
+             * @return {int} the event's pageY
+             */
+            getPageY: function(ev) {
+                var y = ev.pageY;
+                if (!y && 0 !== y) {
+                    y = ev.clientY || 0;
+
+                    if ( this.isIE ) {
+                        y += this._getScrollTop();
+                    }
+                }
+
+                return y;
+            },
+
+            /**
+             * Returns the pageX and pageY properties as an indexed array.
+             * @type int[]
+             */
+            getXY: function(ev) {
+                return [this.getPageX(ev), this.getPageY(ev)];
+            },
+
+            /**
+             * Returns the event's related target 
+             * @param {Event} ev the event
+             * @return {HTMLElement} the event's relatedTarget
+             */
+            getRelatedTarget: function(ev) {
+                var t = ev.relatedTarget;
+                if (!t) {
+                    if (ev.type == "mouseout") {
+                        t = ev.toElement;
+                    } else if (ev.type == "mouseover") {
+                        t = ev.fromElement;
+                    }
+                }
+
+                return t;
+            },
+
+            /**
+             * Returns the time of the event.  If the time is not included, the
+             * event is modified using the current time.
+             * @param {Event} ev the event
+             * @return {Date} the time of the event
+             */
+            getTime: function(ev) {
+                if (!ev.time) {
+                    var t = new Date().getTime();
+                    try {
+                        ev.time = t;
+                    } catch(e) { 
+                        // can't set the time property  
+                        return t;
+                    }
+                }
+
+                return ev.time;
+            },
+
+            /**
+             * Convenience method for stopPropagation + preventDefault
+             * @param {Event} ev the event
+             */
+            stopEvent: function(ev) {
+                this.stopPropagation(ev);
+                this.preventDefault(ev);
+            },
+
+            /**
+             * Stops event propagation
+             * @param {Event} ev the event
+             */
+            stopPropagation: function(ev) {
+                if (ev.stopPropagation) {
+                    ev.stopPropagation();
+                } else {
+                    ev.cancelBubble = true;
+                }
+            },
+
+            /**
+             * Prevents the default behavior of the event
+             * @param {Event} ev the event
+             */
+            preventDefault: function(ev) {
+                if (ev.preventDefault) {
+                    ev.preventDefault();
+                } else {
+                    ev.returnValue = false;
+                }
+            },
+             
+            /**
+             * Finds the event in the window object, the caller's arguments, or
+             * in the arguments of another method in the callstack.  This is
+             * executed automatically for events registered through the event
+             * manager, so the implementer should not normally need to execute
+             * this function at all.
+             * @param {Event} the event parameter from the handler
+             * @return {Event} the event 
+             */
+            getEvent: function(e) {
+                var ev = e || window.event;
+
+                if (!ev) {
+                    var c = this.getEvent.caller;
+                    while (c) {
+                        ev = c.arguments[0];
+                        if (ev && Event == ev.constructor) {
+                            break;
+                        }
+                        c = c.caller;
+                    }
+                }
+
+                return ev;
+            },
+
+            /**
+             * Returns the charcode for an event
+             * @param {Event} ev the event
+             * @return {int} the event's charCode
+             */
+            getCharCode: function(ev) {
+                return ev.charCode || ((ev.type == "keypress") ? ev.keyCode : 
0);
+            },
+
+            /**
+             * @private
+             * Locating the saved event handler data by function ref
+             */
+            _getCacheIndex: function(el, sType, fn) {
+                for (var i=0,len=listeners.length; i<len; ++i) {
+                    var li = listeners[i];
+                    if ( li                 && 
+                         li[this.FN] == fn  && 
+                         li[this.EL] == el  && 
+                         li[this.TYPE] == sType ) {
+                        return i;
+                    }
+                }
+
+                return -1;
+            },
+
+            /**
+             * Generates an unique ID for the element if it does not already 
+             * have one.
+             * @param el the element
+             * @return {string} the id of the element
+             */
+            generateId: function(el) {
+                var id = el.id;
+
+                if (!id) {
+                    id = "yuievtautoid-" + (counter++);
+                    el.id = id;
+                }
+
+                return id;
+            },
+
+            /**
+             * We want to be able to use getElementsByTagName as a collection
+             * to attach a group of events to.  Unfortunately, different 
+             * browsers return different types of collections.  This function
+             * tests to determine if the object is array-like.  It will also 
+             * fail if the object is an array, but is empty.
+             * @param o the object to test
+             * @return {boolean} true if the object is array-like and populated
+             * @private
+             */
+            _isValidCollection: function(o) {
+
+                return ( o                    && // o is something
+                         o.length             && // o is indexed
+                         typeof o != "string" && // o is not a string
+                         !o.tagName           && // o is not an HTML element
+                         !o.alert             && // o is not a window
+                         typeof o[0] != "undefined" );
+
+            },
+
+            /**
+             * @private
+             * DOM element cache
+             */
+            elCache: {},
+
+            /**
+             * We cache elements bound by id because when the unload event 
+             * fires, we can no longer use document.getElementById
+             * @private
+             */
+            getEl: function(id) {
+                return document.getElementById(id);
+            },
+
+            /**
+             * Clears the element cache
+             * @deprecated
+             * @private
+             */
+            clearCache: function() { },
+
+            /**
+             * Called by CustomEvent instances to provide a handle to the 
+             * event * that can be removed later on.  Should be package 
+             * protected.
+             * @private
+             */
+            regCE: function(ce) {
+                customEvents.push(ce);
+            },
+
+            /**
+             * @private
+             * hook up any deferred listeners
+             */
+            _load: function(e) {
+                loadComplete = true;
+            },
+
+            /**
+             * Polling function that runs before the onload event fires, 
+             * attempting * to attach to DOM Nodes as soon as they are 
+             * available
+             * @private
+             */
+            _tryPreloadAttach: function() {
+
+                if (this.locked) {
+                    return false;
+                }
+
+                this.locked = true;
+
+
+                // keep trying until after the page is loaded.  We need to 
+                // check the page load state prior to trying to bind the 
+                // elements so that we can be certain all elements have been 
+                // tested appropriately
+                var tryAgain = !loadComplete;
+                if (!tryAgain) {
+                    tryAgain = (retryCount > 0);
+                }
+
+                // Delayed listeners
+                var stillDelayed = [];
+
+                for (var i=0,len=delayedListeners.length; i<len; ++i) {
+                    var d = delayedListeners[i];
+                    // There may be a race condition here, so we need to 
+                    // verify the array element is usable.
+                    if (d) {
+
+                        // el will be null if document.getElementById did not
+                        // work
+                        var el = this.getEl(d[this.EL]);
+
+                        if (el) {
+                            this.on(el, d[this.TYPE], d[this.FN], 
+                                    d[this.SCOPE], d[this.ADJ_SCOPE]);
+                            delete delayedListeners[i];
+                        } else {
+                            stillDelayed.push(d);
+                        }
+                    }
+                }
+
+                delayedListeners = stillDelayed;
+
+                // onAvailable
+                notAvail = [];
+                for (i=0,len=onAvailStack.length; i<len ; ++i) {
+                    var item = onAvailStack[i];
+                    if (item) {
+                        el = this.getEl(item.id);
+
+                        if (el) {
+                            var scope = (item.override) ? item.obj : el;
+                            item.fn.call(scope, item.obj);
+                            delete onAvailStack[i];
+                        } else {
+                            notAvail.push(item);
+                        }
+                    }
+                }
+
+                retryCount = (stillDelayed.length === 0 && 
+                                    notAvail.length === 0) ? 0 : retryCount - 
1;
+
+                if (tryAgain) {
+                    this.startTimeout();
+                }
+
+                this.locked = false;
+
+            },
+
+            /**
+             * Removes all listeners registered by pe.event.  Called 
+             * automatically during the unload event.
+             * @private
+             */
+            _unload: function(e, me) {
+                for (var i=0,len=unloadListeners.length; i<len; ++i) {
+                    var l = unloadListeners[i];
+                    if (l) {
+                        var scope = (l[this.ADJ_SCOPE]) ? l[this.SCOPE]: 
window;
+                        l[this.FN].call(scope, this.getEvent(e), l[this.SCOPE] 
);
+                    }
+                }
+
+                if (listeners && listeners.length > 0) {
+                    for (i=0,len=listeners.length; i<len ; ++i) {
+                        l = listeners[i];
+                        if (l) {
+                            this.removeListener(l[this.EL], l[this.TYPE], 
+                                    l[this.FN], i);
+                        }
+                    }
+
+                    this.clearCache();
+                }
+
+                for (i=0,len=customEvents.length; i<len; ++i) {
+                    customEvents[i].unsubscribeAll();
+                    delete customEvents[i];
+                }
+
+                for (i=0,len=legacyEvents.length; i<len; ++i) {
+                    // dereference the element
+                    delete legacyEvents[i][0];
+                    // delete the array item
+                    delete legacyEvents[i];
+                }
+            },
+
+            /**
+             * Returns scrollLeft
+             * @private
+             */
+            _getScrollLeft: function() {
+                return this._getScroll()[1];
+            },
+
+            /**
+             * Returns scrollTop
+             * @private
+             */
+            _getScrollTop: function() {
+                return this._getScroll()[0];
+            },
+
+            /**
+             * Returns the scrollTop and scrollLeft.  Used to calculate the 
+             * pageX and pageY in Internet Explorer
+             * @private
+             */
+            _getScroll: function() {
+                var dd = document.documentElement; db = document.body;
+                if (dd && dd.scrollTop) {
+                    return [dd.scrollTop, dd.scrollLeft];
+                } else if (db) {
+                    return [db.scrollTop, db.scrollLeft];
+                } else {
+                    return [0, 0];
+                }
+            }
+        };
+    } ();
+
+    /**
+     * @private
+     */
+    YAHOO.util.Event.on = YAHOO.util.Event.addListener;
+
+    if (document && document.body) {
+        YAHOO.util.Event._load();
+    } else {
+        YAHOO.util.Event.on(window, "load", YAHOO.util.Event._load, 
+                YAHOO.util.Event, true);
+    }
+
+    YAHOO.util.Event.on(window, "unload", YAHOO.util.Event._unload, 
+                YAHOO.util.Event, true);
+
+    YAHOO.util.Event._tryPreloadAttach();
+
+}
+

Added: trunk/documentation/topic/cms/js/treeview.js
==============================================================================
--- (empty file)
+++ trunk/documentation/topic/cms/js/treeview.js        Tue Jun  6 07:55:53 2006
@@ -0,0 +1,1744 @@
+/*                                                                             
                                                                         
+Copyright (c) 2006, Yahoo! Inc. All rights reserved.                           
                                                                         
+Code licensed under the BSD License:                                           
                                                                         
+http://developer.yahoo.net/yui/license.txt                                     
                                                                         
+version: 0.10.0                                                                
                                                                         
+*/ 
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * Contains the tree view state data and the root node.  This is an
+ * ordered tree; child nodes will be displayed in the order created, and
+ * there currently is no way to change this.
+ *
+ * @constructor
+ * @todo graft (appendBefore, appendAfter)
+ * @param {string} id The id of the element that the tree will be inserted
+ * into.
+ */
+YAHOO.widget.TreeView = function(id) {
+       if (id) { this.init(id); }
+};
+
+/**
+ * Count of all nodes in all trees
+ * @type int
+ */
+YAHOO.widget.TreeView.nodeCount = 0;
+
+YAHOO.widget.TreeView.prototype = {
+
+    /**
+     * The id of tree container element
+     *
+     * @type String
+     */
+    id: null,
+
+     /**
+     * Flat collection of all nodes in this tree
+     *
+     * @type Node[]
+     * @private
+     */
+    _nodes: null,
+
+    /**
+     * We lock the tree control while waiting for the dynamic loader to return
+     *
+     * @type boolean
+     */
+    locked: false,
+
+    /**
+     * The animation to use for expanding children, if any
+     *
+     * @type string
+     * @private
+     */
+    _expandAnim: null,
+
+    /**
+     * The animation to use for collapsing children, if any
+     *
+     * @type string
+     * @private
+     */
+    _collapseAnim: null,
+
+    /**
+     * The current number of animations that are executing
+     *
+     * @type int
+     * @private
+     */
+    _animCount: 0,
+
+    /**
+     * The maximum number of animations to run at one time.
+     *
+     * @type int
+     */
+    maxAnim: 2,
+
+    /**
+     * Sets up the animation for expanding children
+     *
+     * @param {string} the type of animation (acceptable constants in 
YAHOO.widget.TVAnim)
+     */
+    setExpandAnim: function(type) {
+        if (YAHOO.widget.TVAnim.isValid(type)) {
+            this._expandAnim = type;
+        }
+    },
+
+    /**
+     * Sets up the animation for collapsing children
+     *
+     * @param {string} the type of animation (acceptable constants in 
YAHOO.widget.TVAnim)
+     */
+    setCollapseAnim: function(type) {
+        if (YAHOO.widget.TVAnim.isValid(type)) {
+            this._collapseAnim = type;
+        }
+    },
+
+    /**
+     * Perform the expand animation if configured, or just show the
+     * element if not configured or too many animations are in progress
+     *
+     * @param el {HTMLElement} the element to animate
+     * @return {boolean} true if animation could be invoked, false otherwise
+     */
+    animateExpand: function(el) {
+
+        if (this._expandAnim && this._animCount < this.maxAnim) {
+            // this.locked = true;
+            var tree = this;
+            var a = YAHOO.widget.TVAnim.getAnim(this._expandAnim, el, 
+                            function() { tree.expandComplete(); });
+            if (a) { 
+                ++this._animCount;
+                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
+     *
+     * @param el {HTMLElement} the element to animate
+     * @return {boolean} true if animation could be invoked, false otherwise
+     */
+    animateCollapse: function(el) {
+
+        if (this._collapseAnim && this._animCount < this.maxAnim) {
+            // this.locked = true;
+            var tree = this;
+            var a = YAHOO.widget.TVAnim.getAnim(this._collapseAnim, el, 
+                            function() { tree.collapseComplete(); });
+            if (a) { 
+                ++this._animCount;
+                a.animate();
+            }
+
+            return true;
+        }
+
+        return false;
+    },
+
+    /**
+     * Function executed when the expand animation completes
+     */
+    expandComplete: function() {
+        --this._animCount;
+        // this.locked = false;
+    },
+
+    /**
+     * Function executed when the collapse animation completes
+     */
+    collapseComplete: function() {
+        --this._animCount;
+        // this.locked = false;
+    },
+
+    /**
+     * Initializes the tree
+     *
+     * @parm {string} id the id of the element that will hold the tree
+     * @private
+     */
+    init: function(id) {
+
+        this.id = id;
+        this._nodes = [];
+
+        // store a global reference
+        YAHOO.widget.TreeView.trees[id] = this;
+
+        // Set up the root node
+        this.root = new YAHOO.widget.RootNode(this);
+
+
+    },
+
+    /**
+     * Renders the tree boilerplate and visible nodes
+     */
+    draw: function() {
+        var html = this.root.getHtml();
+        document.getElementById(this.id).innerHTML = html;
+        this.firstDraw = false;
+    },
+
+    /**
+     * Nodes register themselves with the tree instance when they are created.
+     *
+     * @param node {Node} the node to register
+     * @private
+     */
+    regNode: function(node) {
+        this._nodes[node.index] = node;
+    },
+
+    /**
+     * Returns the root node of this tree
+     *
+     * @return {Node} the root node
+     */
+    getRoot: function() {
+        return this.root;
+    },
+
+    /**
+     * Configures this tree to dynamically load all child data
+     *
+     * @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.
+     */
+    expandAll: function() { 
+        if (!this.locked) {
+            this.root.expandAll(); 
+        }
+    },
+
+    /**
+     * Collapses all expanded child nodes in the entire tree.
+     */
+    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.)
+     *
+     * @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.  Provides a flexible
+     * way for the implementer to get a particular node.
+     *
+     * @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) {
+            var n = this._nodes[i];
+            if (n.data && value == n.data[property]) {
+                return n;
+            }
+        }
+
+        return null;
+    },
+
+    /**
+     * Removes the node and its children, and optionally refreshes the branch 
+     * of the tree that was affected.
+     * @param {Node} The 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;
+    },
+
+    /**
+     * 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.
+     * @param {Node} node the node to purge
+     */
+    removeChildren: function(node) { 
+        for (var i=0, len=node.children.length;i<len;++i) {
+            this._deleteNode(node.children[i]);
+        }
+
+        node.childrenRendered = false;
+        node.dynamicLoadComplete = false;
+        node.collapse();
+    },
+
+    /**
+     * Deletes the node and recurses children
+     * @private
+     */
+    _deleteNode: function(node) { 
+        var p = node.parent;
+
+        // Remove all the child nodes first
+        this.removeChildren(node);
+
+        // Update the parent's collection of children
+        var a = [];
+
+        for (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;           
                                                                                
    
+        }
+
+        // Update the tree's node collection 
+        delete this._nodes[node.index];
+    },
+
+    /**
+     * Abstract method that is executed when a node is expanded
+     *
+     * @param node {Node} the node that was expanded
+     */
+    onExpand: function(node) { },
+
+    /**
+     * Abstract method that is executed when a node is collapsed
+     *
+     * @param node {Node} the node that was collapsed.
+     */
+    onCollapse: function(node) { }
+
+};
+
+/**
+ * Global cache of tree instances
+ *
+ * @type Array
+ * @private
+ */
+YAHOO.widget.TreeView.trees = [];
+
+/**
+ * Global method for getting a tree by its id.  Used in the generated
+ * tree html.
+ *
+ * @param treeId {String} the id of the tree instance
+ * @return {TreeView} the tree instance requested, null if not found.
+ */
+YAHOO.widget.TreeView.getTree = function(treeId) {
+       var t = YAHOO.widget.TreeView.trees[treeId];
+       return (t) ? t : null;
+};
+
+/**
+ * Global method for getting a node by its id.  Used in the generated
+ * tree html.
+ *
+ * @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
+ */
+YAHOO.widget.TreeView.getNode = function(treeId, nodeIndex) {
+       var t = YAHOO.widget.TreeView.getTree(treeId);
+       return (t) ? t.getNodeByIndex(nodeIndex) : null;
+};
+
+/**
+ * Adds an event.  Replace with event manager when available
+ *
+ * @param el the elment to bind the handler to
+ * @param {string} sType the type of event handler
+ * @param {function} fn the callback to invoke
+ * @param {boolean} capture if true event is capture phase, bubble otherwise
+ */
+YAHOO.widget.TreeView.addHandler = function (el, sType, fn, capture) {
+       capture = (capture) ? true : false;
+       if (el.addEventListener) {
+               el.addEventListener(sType, fn, capture);
+       } else if (el.attachEvent) {
+               el.attachEvent("on" + sType, fn);
+       } else {
+               el["on" + sType] = fn;
+       }
+};
+
+/**
+ * Attempts to preload the images defined in the styles used to draw the tree 
by
+ * rendering off-screen elements that use the styles.
+ */
+YAHOO.widget.TreeView.preload = function() {
+
+       var styles = [
+               "ygtvtn",       
+               "ygtvtm",       
+               "ygtvtmh",      
+               "ygtvtp",       
+               "ygtvtph",      
+               "ygtvln",       
+               "ygtvlm",       
+               "ygtvlmh",      
+               "ygtvlp",       
+               "ygtvlph",      
+               "ygtvloading"
+               ];
+
+       var sb = [];
+       
+       for (var i = 0; i < styles.length; ++i) { 
+               sb[sb.length] = '<span class="' + styles[i] + '">&nbsp;</span>';
+       }
+
+       var f = document.createElement("div");
+       var s = f.style;
+       s.position = "absolute";
+       s.top = "-1000px";
+       s.left = "-1000px";
+       f.innerHTML = sb.join("");
+
+       document.body.appendChild(f);
+};
+
+YAHOO.widget.TreeView.addHandler(window, 
+                "load", YAHOO.widget.TreeView.preload);
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * The base class for all tree nodes.  The node's presentation and behavior in
+ * response to mouse events is handled in Node subclasses.
+ *
+ * @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
+ * @constructor
+ */
+YAHOO.widget.Node = function(oData, oParent, expanded) {
+       if (oParent) { this.init(oData, oParent, expanded); }
+};
+
+YAHOO.widget.Node.prototype = {
+
+    /**
+     * The index for this instance obtained from global counter in 
YAHOO.widget.TreeView.
+     *
+     * @type int
+     */
+    index: 0,
+
+    /**
+     * This node's child node collection.
+     *
+     * @type Node[] 
+     */
+    children: null,
+
+    /**
+     * Tree instance this node is part of
+     *
+     * @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().
+     *
+     * @type object
+     */
+    data: null,
+
+    /**
+     * Parent node
+     *
+     * @type Node
+     */
+    parent: null,
+
+    /**
+     * The depth of this node.  We start at -1 for the root node.
+     *
+     * @type int
+     */
+    depth: -1,
+
+    /**
+     * The href for the node's label.  If one is not specified, the href will
+     * be set so that it toggles the node.
+     *
+     * @type string
+     */
+    href: null,
+
+    /**
+     * The label href target, defaults to current window
+     *
+     * @type string
+     */
+    target: "_self",
+
+    /**
+     * The node's expanded/collapsed state
+     *
+     * @type boolean
+     */
+    expanded: false,
+
+    /**
+     * Can multiple children be expanded at once?
+     *
+     * @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.
+     *
+     * @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.
+     * @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.
+     * @type boolean
+     */
+    dynamicLoadComplete: false,
+
+    /**
+     * This node's previous sibling
+     *
+     * @type Node
+     */
+    previousSibling: null,
+
+    /**
+     * This node's next sibling
+     *
+     * @type Node
+     */
+    nextSibling: null,
+
+    /**
+     * We can set the node up to call an external method to get the child
+     * data dynamically.
+     *
+     * @type boolean
+     * @private
+     */
+    _dynLoad: false,
+
+    /**
+     * Function to execute when we need to get this node's child data.
+     *
+     * @type function
+     */
+    dataLoader: null,
+
+    /**
+     * This is true for dynamically loading nodes while waiting for the
+     * callback to return.
+     *
+     * @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.
+     *
+     * @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.
+     * @type int
+     */
+    iconMode: 0,
+
+    /**
+     * The node type
+     * @private
+     */
+    _type: "Node",
+
+    /*
+    spacerPath: "http://us.i1.yimg.com/us.yimg.com/i/space.gif";,
+    expandedText: "Expanded",
+    collapsedText: "Collapsed",
+    loadingText: "Loading",
+    */
+
+    /**
+     * Initializes this node, gets some of the properties from the parent
+     *
+     * @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              = oData;
+        this.children  = [];
+        this.index             = YAHOO.widget.TreeView.nodeCount;
+        ++YAHOO.widget.TreeView.nodeCount;
+        this.expanded  = expanded;
+
+        // oParent should never be null except when we create the root node.
+        if (oParent) {
+            this.tree                  = oParent.tree;
+            this.parent                        = oParent;
+            this.href                  = "javascript:" + this.getToggleLink();
+            this.depth                 = oParent.depth + 1;
+            this.multiExpand   = oParent.multiExpand;
+
+            oParent.appendChild(this);
+        }
+    },
+
+    /**
+     * Appends a node to the child collection.
+     *
+     * @param node {Node} the new node
+     * @return {Node} the child node
+     * @private
+     * @TODO insertBefore, insertAfter
+     */
+    appendChild: function(node) {
+        if (this.hasChildren()) {
+            var sib = this.children[this.children.length - 1];
+            sib.nextSibling = node;
+            node.previousSibling = sib;
+        }
+
+        this.tree.regNode(node);
+        this.children[this.children.length] = node;
+        this.childrenRendered = false;
+        return node;
+
+    },
+
+    /**
+     * Returns a node array of this node's siblings, null if none.
+     *
+     * @return Node[]
+     */
+    getSiblings: function() {
+        return this.parent.children;
+    },
+
+    /**
+     * Shows this node's children
+     */
+    showChildren: function() {
+        if (!this.tree.animateExpand(this.getChildrenEl())) {
+            if (this.hasChildren()) {
+                this.getChildrenEl().style.display = "";
+            }
+        }
+    },
+
+    /**
+     * Hides this node's children
+     */
+    hideChildren: function() {
+
+        if (!this.tree.animateCollapse(this.getChildrenEl())) {
+            this.getChildrenEl().style.display = "none";
+        }
+    },
+
+    /**
+     * Returns the id for this node's container div
+     *
+     * @return {string} the element id
+     */
+    getElId: function() {
+        return "ygtv" + this.index;
+    },
+
+    /**
+     * Returns the id for this node's children div
+     *
+     * @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
+     *
+     * @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.
+     * @return {string} the id for the spacer image
+     */
+    /*
+    getSpacerId: function() {
+        return "ygtvspacer" + this.index;
+    }, 
+    */
+
+    /**
+     * Returns this node's container html element
+     * @return {HTMLElement} the container html element
+     */
+    getEl: function() {
+        return document.getElementById(this.getElId());
+    },
+
+    /**
+     * Returns the div that was generated for this node's children
+     * @return {HTMLElement} this node's children div
+     */
+    getChildrenEl: function() {
+        return document.getElementById(this.getChildrenElId());
+    },
+
+    /**
+     * Returns the element that is being used for this node's toggle.
+     * @return {HTMLElement} this node's toggle html element
+     */
+    getToggleEl: function() {
+        return document.getElementById(this.getToggleElId());
+    },
+
+    /**
+     * Returns the element that is being used for this node's spacer.
+     * @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 "";
+        }
+    },
+    */
+
+    /**
+     * Generates the link that will invoke this node's toggle method
+     * @return {string} the javascript url for toggling this node
+     */
+    getToggleLink: function() {
+        return "YAHOO.widget.TreeView.getNode(\'" + this.tree.id + "\'," + 
+            this.index + ").toggle()";
+    },
+
+    /**
+     * Hides this nodes children (creating them if necessary), changes the
+     * toggle style.
+     */
+    collapse: function() {
+        // Only collapse if currently expanded
+        if (!this.expanded) { return; }
+
+        // fire the collapse event handler
+        var ret = this.tree.onCollapse(this);
+
+        if ("undefined" != typeof ret && !ret) {
+            return;
+        }
+
+        if (!this.getEl()) {
+            this.expanded = false;
+            return;
+        }
+
+        // hide the child div
+        this.hideChildren();
+        this.expanded = false;
+
+        if (this.hasIcon) {
+            this.getToggleEl().className = this.getStyle();
+        }
+
+        // this.getSpacer().title = this.getStateText();
+
+    },
+
+    /**
+     * Shows this nodes children (creating them if necessary), changes the
+     * toggle style, and collapses its siblings if multiExpand is not set.
+     */
+    expand: function() {
+        // Only expand if currently collapsed.
+        if (this.expanded) { return; }
+
+        // fire the expand event handler
+        var ret = this.tree.onExpand(this);
+
+        if ("undefined" != typeof ret && !ret) {
+            return;
+        }
+
+        if (!this.getEl()) {
+            this.expanded = true;
+            return;
+        }
+
+        if (! this.childrenRendered) {
+            this.getChildrenEl().innerHTML = this.renderChildren();
+        } else {
+        }
+
+        this.expanded = true;
+        if (this.hasIcon) {
+            this.getToggleEl().className = this.getStyle();
+        }
+
+        // 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; i<sibs.length; ++i) {
+                if (sibs[i] != this && sibs[i].expanded) { 
+                    sibs[i].collapse(); 
+                }
+            }
+        }
+
+        this.showChildren();
+    },
+
+    /**
+     * Returns the css style name for the toggle
+     *
+     * @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
+     */
+    getHoverStyle: function() { 
+        var s = this.getStyle();
+        if (this.hasChildren(true) && !this.isLoading) { 
+            s += "h"; 
+        }
+        return s;
+    },
+
+    /**
+     * Recursively expands all of this node's children.
+     */
+    expandAll: function() { 
+        for (var i=0;i<this.children.length;++i) {
+            var c = this.children[i];
+            if (c.isDynamic()) {
+                alert("Not supported (lazy load + expand all)");
+                break;
+            } else if (! c.multiExpand) {
+                alert("Not supported (no multi-expand + expand all)");
+                break;
+            } else {
+                c.expand();
+                c.expandAll();
+            }
+        }
+    },
+
+    /**
+     * Recursively collapses all of this node's children.
+     */
+    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.
+     *
+     * @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
+     *
+     * @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
+     *
+     * @return {boolean} true if this node's children are to be loaded 
dynamically
+     */
+    isDynamic: function() { 
+        var lazy = (!this.isRoot() && (this._dynLoad || 
this.tree.root._dynLoad));
+        return lazy;
+    },
+
+    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.
+     *
+     * @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) { 
+        return ( this.children.length > 0 || 
+                (checkForLazyLoad && this.isDynamic() && 
!this.dynamicLoadComplete) );
+    },
+
+    /**
+     * Expands if node is collapsed, collapses otherwise.
+     */
+    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.
+     *
+     * @return {string} the markup for this node and its expanded children.
+     */
+    getHtml: function() {
+        var sb = [];
+        sb[sb.length] = '<div class="ygtvitem" id="' + this.getElId() + '">';
+        sb[sb.length] = this.getNodeHtml();
+        sb[sb.length] = this.getChildrenHtml();
+        sb[sb.length] = '</div>';
+        return sb.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.
+     *
+     * @return {string} the children container div html and any expanded 
children
+     * @private
+     */
+    getChildrenHtml: function() {
+
+        var sb = [];
+        sb[sb.length] = '<div class="ygtvchildren"';
+        sb[sb.length] = ' id="' + this.getChildrenElId() + '"';
+        if (!this.expanded) {
+            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.
+     *
+     * @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.
+     * @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.
+     */
+    loadComplete: function() {
+        this.getChildrenEl().innerHTML = this.completeRender();
+        this.dynamicLoadComplete = true;
+        this.isLoading = false;
+        this.expand();
+        this.tree.locked = false;
+    },
+
+    /**
+     * Returns this node's ancestor at the specified depth.
+     *
+     * @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
+     *
+     * @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 is designed to be overrided so that 
we can
+     * support different types of nodes.
+     *
+     * @return {string} The HTML that will render this node.
+     */
+    getNodeHtml: 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.
+     */
+    refresh: function() {
+        // this.loadComplete();
+        this.getChildrenEl().innerHTML = this.completeRender();
+
+        if (this.hasIcon) {
+            var el = this.getToggleEl();
+            if (el) {
+                el.className = this.getStyle();
+            }
+        }
+    }
+
+};
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * A custom YAHOO.widget.Node that handles the unique nature of 
+ * the virtual, presentationless root node.
+ *
+ * @extends YAHOO.widget.Node
+ * @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.
+        *
+        * @type TreeView
+        */
+       this.tree = oTree;
+};
+YAHOO.widget.RootNode.prototype = new YAHOO.widget.Node();
+
+// overrides YAHOO.widget.Node
+YAHOO.widget.RootNode.prototype.getNodeHtml = function() { 
+       return ""; 
+};
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * 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 a string propery called label.  By default, the clicking the
+ * label will toggle the expanded/collapsed state of the node.  By
+ * changing the href property of the instance, this behavior can be
+ * changed so that the label will go to the specified href.
+ *
+ * @extends YAHOO.widget.Node
+ * @constructor
+ * @param oData {object} a string or object containing the data that will
+ * be used to render this node
+ * @param oParent {YAHOO.widget.Node} this node's parent node
+ * @param expanded {boolean} the initial expanded/collapsed state
+ */
+YAHOO.widget.TextNode = function(oData, oParent, expanded) {
+    this.type = "TextNode";
+
+       if (oParent) { 
+               this.init(oData, oParent, expanded);
+               this.setUpLabel(oData);
+       }
+};
+
+YAHOO.widget.TextNode.prototype = new 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.
+ *
+ * @type string
+ */
+YAHOO.widget.TextNode.prototype.labelStyle = "ygtvlabel";
+
+/**
+ * The derived element id of the label for this node
+ *
+ * @type string
+ */
+YAHOO.widget.TextNode.prototype.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.
+ *
+ * @type string
+ */
+YAHOO.widget.TextNode.prototype.label = null;
+
+/**
+ * Sets up the node label
+ * 
+ * @param oData string containing the label, or an object with a label property
+ */
+YAHOO.widget.TextNode.prototype.setUpLabel = function(oData) { 
+       if (typeof oData == "string") {
+               oData = { label: oData };
+       }
+       this.label = oData.label;
+       
+       // update the link
+       if (oData.href) {
+               this.href = oData.href;
+       }
+
+       // set the target
+       if (oData.target) {
+               this.target = oData.target;
+       }
+
+    if (oData.style) {
+        this.labelStyle = oData.style;
+    }
+
+       this.labelElId = "ygtvlabelel" + this.index;
+};
+
+/**
+ * Returns the label element
+ *
+ * @return {object} the element
+ */
+YAHOO.widget.TextNode.prototype.getLabelEl = function() { 
+       return document.getElementById(this.labelElId);
+};
+
+// overrides YAHOO.widget.Node
+YAHOO.widget.TextNode.prototype.getNodeHtml = function() { 
+       var sb = [];
+
+       sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
+       sb[sb.length] = '<tr>';
+       
+       for (i=0;i<this.depth;++i) {
+               // sb[sb.length] = '<td class="ygtvdepthcell">&nbsp;</td>';
+               sb[sb.length] = '<td class="' + this.getDepthStyle(i) + 
'">&nbsp;</td>';
+       }
+
+       var getNode = 'YAHOO.widget.TreeView.getNode(\'' +
+                                       this.tree.id + '\',' + this.index + ')';
+
+       sb[sb.length] = '<td';
+       // sb[sb.length] = ' onselectstart="return false"';
+       sb[sb.length] = ' id="' + this.getToggleElId() + '"';
+       sb[sb.length] = ' class="' + this.getStyle() + '"';
+       if (this.hasChildren(true)) {
+               sb[sb.length] = ' onmouseover="this.className=';
+               sb[sb.length] = getNode + '.getHoverStyle()"';
+               sb[sb.length] = ' onmouseout="this.className=';
+               sb[sb.length] = getNode + '.getStyle()"';
+       }
+       sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '">';
+
+    /*
+       sb[sb.length] = '<img id="' + this.getSpacerId() + '"';
+    sb[sb.length] = ' alt=""';
+    sb[sb.length] = ' tabindex=0';
+    sb[sb.length] = ' src="' + this.spacerPath + '"';
+    sb[sb.length] = ' title="' + this.getStateText() + '"';
+    sb[sb.length] = ' class="ygtvspacer"';
+    // sb[sb.length] = ' onkeypress="return ' + getNode + '".onKeyPress()"';
+    sb[sb.length] = ' />';
+    */
+
+       sb[sb.length] = '&nbsp;';
+
+       sb[sb.length] = '</td>';
+       sb[sb.length] = '<td>';
+       sb[sb.length] = '<a';
+       sb[sb.length] = ' id="' + this.labelElId + '"';
+       sb[sb.length] = ' class="' + this.labelStyle + '"';
+       sb[sb.length] = ' href="' + this.href + '"';
+       sb[sb.length] = ' target="' + this.target + '"';
+       sb[sb.length] = ' onclick="return ' + getNode + '.onLabelClick(' + 
getNode +')"';
+       if (this.hasChildren(true)) {
+               sb[sb.length] = ' onmouseover="document.getElementById(\'';
+               sb[sb.length] = this.getToggleElId() + '\').className=';
+               sb[sb.length] = getNode + '.getHoverStyle()"';
+               sb[sb.length] = ' onmouseout="document.getElementById(\'';
+               sb[sb.length] = this.getToggleElId() + '\').className=';
+               sb[sb.length] = getNode + '.getStyle()"';
+       }
+       sb[sb.length] = ' >';
+       sb[sb.length] = this.label;
+       sb[sb.length] = '</a>';
+       sb[sb.length] = '</td>';
+       sb[sb.length] = '</tr>';
+       sb[sb.length] = '</table>';
+
+       return sb.join("");
+};
+
+/**
+ * Executed when the label is clicked
+ * @param me {Node} this node
+ * @scope the anchor tag clicked
+ * @return false to cancel the anchor click
+ */
+YAHOO.widget.TextNode.prototype.onLabelClick = function(me) { 
+    //return true;
+};
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * A menu-specific implementation that differs from TextNode in that only 
+ * one sibling can be expanded at a time.
+ * @extends YAHOO.widget.TextNode
+ * @constructor
+ */
+YAHOO.widget.MenuNode = function(oData, oParent, expanded) {
+       if (oParent) { 
+               this.init(oData, oParent, expanded);
+               this.setUpLabel(oData);
+       }
+
+    /**
+     * Menus usually allow only one branch to be open at a time.
+     * @type boolean
+     */
+       this.multiExpand = false;
+
+};
+
+YAHOO.widget.MenuNode.prototype = new YAHOO.widget.TextNode();
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * This implementation takes either a string or object for the
+ * oData argument.  If is it a string, we will use it for the display
+ * of this node (and it can contain any html code).  If the parameter
+ * is an object, we look for a parameter called "html" that will be
+ * used for this node's display.
+ *
+ * @extends YAHOO.widget.Node
+ * @constructor
+ * @param oData {object} a string or object containing the data that will
+ * be used to render this node
+ * @param oParent {YAHOO.widget.Node} this node's parent node
+ * @param expanded {boolean} the initial expanded/collapsed state
+ * @param hasIcon {boolean} specifies whether or not leaf nodes should
+ * have an icon
+ */
+YAHOO.widget.HTMLNode = function(oData, oParent, expanded, hasIcon) {
+    if (oParent) { 
+        this.init(oData, oParent, expanded);
+        this.initContent(oData, hasIcon);
+    }
+};
+
+YAHOO.widget.HTMLNode.prototype = new 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.
+ *
+ * @type string
+ */
+YAHOO.widget.HTMLNode.prototype.contentStyle = "ygtvhtml";
+
+/**
+ * The generated id that will contain the data passed in by the implementer.
+ *
+ * @type string
+ */
+YAHOO.widget.HTMLNode.prototype.contentElId = null;
+
+/**
+ * The HTML content to use for this node's display
+ *
+ * @type string
+ */
+YAHOO.widget.HTMLNode.prototype.content = null;
+
+/**
+ * Sets up the node label
+ *
+ * @param {object} An html string or object containing an html property
+ * @param {boolean} hasIcon determines if the node will be rendered with an
+ * icon or not
+ */
+YAHOO.widget.HTMLNode.prototype.initContent = function(oData, hasIcon) { 
+    if (typeof oData == "string") {
+        oData = { html: oData };
+    }
+
+    this.html = oData.html;
+    this.contentElId = "ygtvcontentel" + this.index;
+    this.hasIcon = hasIcon;
+};
+
+/**
+ * Returns the outer html element for this node's content
+ *
+ * @return {HTMLElement} the element
+ */
+YAHOO.widget.HTMLNode.prototype.getContentEl = function() { 
+    return document.getElementById(this.contentElId);
+};
+
+// overrides YAHOO.widget.Node
+YAHOO.widget.HTMLNode.prototype.getNodeHtml = function() { 
+    var sb = [];
+
+    sb[sb.length] = '<table border="0" cellpadding="0" cellspacing="0">';
+    sb[sb.length] = '<tr>';
+    
+    for (i=0;i<this.depth;++i) {
+        sb[sb.length] = '<td class="' + this.getDepthStyle(i) + 
'">&nbsp;</td>';
+    }
+
+    if (this.hasIcon) {
+        sb[sb.length] = '<td';
+        sb[sb.length] = ' id="' + this.getToggleElId() + '"';
+        sb[sb.length] = ' class="' + this.getStyle() + '"';
+        sb[sb.length] = ' onclick="javascript:' + this.getToggleLink() + '"';
+        if (this.hasChildren(true)) {
+            sb[sb.length] = ' onmouseover="this.className=';
+            sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
+            sb[sb.length] = this.tree.id + '\',' + this.index +  
').getHoverStyle()"';
+            sb[sb.length] = ' onmouseout="this.className=';
+            sb[sb.length] = 'YAHOO.widget.TreeView.getNode(\'';
+            sb[sb.length] = this.tree.id + '\',' + this.index +  
').getStyle()"';
+        }
+        sb[sb.length] = '>&nbsp;</td>';
+    }
+
+    sb[sb.length] = '<td';
+    sb[sb.length] = ' id="' + this.contentElId + '"';
+    sb[sb.length] = ' class="' + this.contentStyle + '"';
+    sb[sb.length] = ' >';
+    sb[sb.length] = this.html;
+    sb[sb.length] = '</td>';
+    sb[sb.length] = '</tr>';
+    sb[sb.length] = '</table>';
+
+    return sb.join("");
+};
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * A static factory class for tree view expand/collapse animations
+ *
+ * @constructor
+ */
+YAHOO.widget.TVAnim = function() {
+    return {
+        /**
+         * Constant for the fade in animation
+         * 
+         * @type string
+         */
+        FADE_IN: "TVFadeIn",
+
+        /**
+         * Constant for the fade out animation
+         * 
+         * @type string
+         */
+        FADE_OUT: "TVFadeOut",
+
+        /**
+         * Returns a ygAnim instance of the given type
+         *
+         * @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
+         */
+        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
+         *
+         * @param type {string} the type of animation
+         * @return {boolean} true if valid, false if not
+         */
+        isValid: function(type) {
+            return (YAHOO.widget[type]);
+        }
+    };
+} ();
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * A 1/2 second fade-in animation.
+ *
+ * @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
+     * @type HTMLElement
+        */
+       this.el = el;
+
+       /**
+        * the callback to invoke when the animation is complete
+        *
+        * @type function
+        */
+       this.callback = callback;
+
+       /**
+        * @private
+        */
+};
+
+/**
+ * Performs the animation
+ */
+YAHOO.widget.TVFadeIn.prototype = {
+    animate: function() {
+        var tvanim = this;
+
+        var s = this.el.style;
+        s.opacity = 0.1;
+        s.filter = "alpha(opacity=10)";
+        s.display = "";
+
+        // var dur = ( navigator.userAgent.match(/msie/gi) ) ? 0.05 : 0.4;
+        var dur = 0.4; 
+        // var a = new ygAnim_Fade(this.el, dur, 1);
+        // a.setStart(0.1);
+        // a.onComplete = function() { tvanim.onComplete(); };
+
+        // var a = new YAHOO.util.Anim(this.el, 'opacity', 0.1, 1);
+        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
+     */
+    onComplete: function() {
+        this.callback();
+    }
+};
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * A 1/2 second fade out animation.
+ *
+ * @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
+     * @type HTMLElement
+        */
+       this.el = el;
+
+       /**
+        * the callback to invoke when the animation is complete
+        *
+        * @type function
+        */
+       this.callback = callback;
+
+       /**
+        * @private
+        */
+};
+
+/**
+ * Performs the animation
+ */
+YAHOO.widget.TVFadeOut.prototype = {
+    animate: function() {
+        var tvanim = this;
+        // var dur = ( navigator.userAgent.match(/msie/gi) ) ? 0.05 : 0.4;
+        var dur = 0.4;
+        // var a = new ygAnim_Fade(this.el, dur, 0.1);
+        // a.onComplete = function() { tvanim.onComplete(); };
+
+        // var a = new YAHOO.util.Anim(this.el, 'opacity', 1, 0.1);
+        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
+     */
+    onComplete: function() {
+        var s = this.el.style;
+        s.display = "none";
+        // s.opacity = 1;
+        s.filter = "alpha(opacity=100)";
+        this.callback();
+    }
+};
+

Added: trunk/documentation/topic/cms/js/yahoo.js
==============================================================================
--- (empty file)
+++ trunk/documentation/topic/cms/js/yahoo.js   Tue Jun  6 07:55:53 2006
@@ -0,0 +1,61 @@
+/*                                                                             
                                                                         
+Copyright (c) 2006, Yahoo! Inc. All rights reserved.                           
                                                                         
+Code licensed under the BSD License:                                           
                                                                         
+http://developer.yahoo.net/yui/license.txt                                     
                                                                         
+version: 0.10.0                                                                
                                                                         
+*/ 
+
+/* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */
+
+/**
+ * The Yahoo global namespace
+ * @constructor
+ */
+var YAHOO = window.YAHOO || {};
+
+/**
+ * Returns the namespace specified and creates it if it doesn't exist
+ *
+ * YAHOO.namespace("property.package");
+ * YAHOO.namespace("YAHOO.property.package");
+ *
+ * Either of the above would create YAHOO.property, then
+ * YAHOO.property.package
+ *
+ * @param  {String} sNameSpace String representation of the desired 
+ *                             namespace
+ * @return {Object}            A reference to the namespace object
+ */
+YAHOO.namespace = function( sNameSpace ) {
+
+    if (!sNameSpace || !sNameSpace.length) {
+        return null;
+    }
+
+    var levels = sNameSpace.split(".");
+
+    var currentNS = YAHOO;
+
+    // YAHOO is implied, so it is ignored if it is included
+    for (var i=(levels[0] == "YAHOO") ? 1 : 0; i<levels.length; ++i) {
+        currentNS[levels[i]] = currentNS[levels[i]] || {};
+        currentNS = currentNS[levels[i]];
+    }
+
+    return currentNS;
+};
+
+/**
+ * Global log method.
+ */
+YAHOO.log = function(sMsg,sCategory) {
+    if(YAHOO.widget.Logger) {
+        YAHOO.widget.Logger.log(null, sMsg, sCategory);
+    } else {
+        return false;
+    }
+};
+
+YAHOO.namespace("util");
+YAHOO.namespace("widget");
+YAHOO.namespace("example");
-- 
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