/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.3.0

NOTE: This file contains a preview release of the YUI library made
available for testing purposes.  It is not recommended that this code
be used in production environments.  You should replace this version
with the 2.3.0 release as soon as it is available.

*/
(function () {

    /**
    * Config is a utility used within an Object to allow the implementer to
    * maintain a list of local configuration properties and listen for changes 
    * to those properties dynamically using CustomEvent. The initial values are 
    * also maintained so that the configuration can be reset at any given point 
    * to its initial state.
    * @namespace YAHOO.util
    * @class Config
    * @constructor
    * @param {Object} owner The owner Object to which this Config Object belongs
    */
    YAHOO.util.Config = function (owner) {
    
        if (owner) {
    
            this.init(owner);
    
        }
    
        if (!owner) { 
        
    
        }
    
    };


    var Lang = YAHOO.lang,
        CustomEvent = YAHOO.util.CustomEvent,        
        Config = YAHOO.util.Config;
    

    /**
     * Constant representing the CustomEvent type for the config changed event.
     * @property YAHOO.util.Config.CONFIG_CHANGED_EVENT
     * @private
     * @static
     * @final
     */
    Config.CONFIG_CHANGED_EVENT = "configChanged";
    
    /**
     * Constant representing the boolean type string
     * @property YAHOO.util.Config.BOOLEAN_TYPE
     * @private
     * @static
     * @final
     */
    Config.BOOLEAN_TYPE = "boolean";
    
    Config.prototype = {
     
        /**
        * Object reference to the owner of this Config Object
        * @property owner
        * @type Object
        */
        owner: null,
        
        /**
        * Boolean flag that specifies whether a queue is currently 
        * being executed
        * @property queueInProgress
        * @type Boolean
        */
        queueInProgress: false,
        
        /**
        * Maintains the local collection of configuration property objects and 
        * their specified values
        * @property config
        * @private
        * @type Object
        */ 
        config: null,
        
        /**
        * Maintains the local collection of configuration property objects as 
        * they were initially applied.
        * This object is used when resetting a property.
        * @property initialConfig
        * @private
        * @type Object
        */ 
        initialConfig: null,
        
        /**
        * Maintains the local, normalized CustomEvent queue
        * @property eventQueue
        * @private
        * @type Object
        */ 
        eventQueue: null,
        
        /**
        * Custom Event, notifying subscribers when Config properties are set 
        * (setProperty is called without the silent flag
        * @event configChangedEvent
        */
        configChangedEvent: null,
    
        /**
        * Initializes the configuration Object and all of its local members.
        * @method init
        * @param {Object} owner The owner Object to which this Config 
        * Object belongs
        */
        init: function (owner) {
    
            this.owner = owner;
    
            this.configChangedEvent = 
                this.createEvent(Config.CONFIG_CHANGED_EVENT);
    
            this.configChangedEvent.signature = CustomEvent.LIST;
            this.queueInProgress = false;
            this.config = {};
            this.initialConfig = {};
            this.eventQueue = [];
        
        },
        
        /**
        * Validates that the value passed in is a Boolean.
        * @method checkBoolean
        * @param {Object} val The value to validate
        * @return {Boolean} true, if the value is valid
        */ 
        checkBoolean: function (val) {
            return (typeof val == Config.BOOLEAN_TYPE);
        },
        
        /**
        * Validates that the value passed in is a number.
        * @method checkNumber
        * @param {Object} val The value to validate
        * @return {Boolean} true, if the value is valid
        */
        checkNumber: function (val) {
            return (!isNaN(val));
        },
        
        /**
        * Fires a configuration property event using the specified value. 
        * @method fireEvent
        * @private
        * @param {String} key The configuration property's name
        * @param {value} Object The value of the correct type for the property
        */ 
        fireEvent: function ( key, value ) {
            var property = this.config[key];
        
            if (property && property.event) {
                property.event.fire(value);
            } 
        },
        
        /**
        * Adds a property to the Config Object's private config hash.
        * @method addProperty
        * @param {String} key The configuration property's name
        * @param {Object} propertyObject The Object containing all of this 
        * property's arguments
        */
        addProperty: function ( key, propertyObject ) {
            key = key.toLowerCase();
        
            this.config[key] = propertyObject;
        
            propertyObject.event = this.createEvent(key, { scope: this.owner });
            propertyObject.event.signature = CustomEvent.LIST;
            
            
            propertyObject.key = key;
        
            if (propertyObject.handler) {
                propertyObject.event.subscribe(propertyObject.handler, 
                    this.owner);
            }
        
            this.setProperty(key, propertyObject.value, true);
            
            if (! propertyObject.suppressEvent) {
                this.queueProperty(key, propertyObject.value);
            }
            
        },
        
        /**
        * Returns a key-value configuration map of the values currently set in  
        * the Config Object.
        * @method getConfig
        * @return {Object} The current config, represented in a key-value map
        */
        getConfig: function () {
        
            var cfg = {},
                prop,
                property;
                
            for (prop in this.config) {
                property = this.config[prop];
                if (property && property.event) {
                    cfg[prop] = property.value;
                }
            }
            
            return cfg;
        },
        
        /**
        * Returns the value of specified property.
        * @method getProperty
        * @param {String} key The name of the property
        * @return {Object}  The value of the specified property
        */
        getProperty: function (key) {
            var property = this.config[key.toLowerCase()];
            if (property && property.event) {
                return property.value;
            } else {
                return undefined;
            }
        },
        
        /**
        * Resets the specified property's value to its initial value.
        * @method resetProperty
        * @param {String} key The name of the property
        * @return {Boolean} True is the property was reset, false if not
        */
        resetProperty: function (key) {
    
            key = key.toLowerCase();
        
            var property = this.config[key];
    
            if (property && property.event) {
    
                if (this.initialConfig[key] && 
                    !Lang.isUndefined(this.initialConfig[key])) {
    
                    this.setProperty(key, this.initialConfig[key]);
    
                }
    
                return true;
    
            } else {
    
                return false;
            }
    
        },
        
        /**
        * Sets the value of a property. If the silent property is passed as 
        * true, the property's event will not be fired.
        * @method setProperty
        * @param {String} key The name of the property
        * @param {String} value The value to set the property to
        * @param {Boolean} silent Whether the value should be set silently, 
        * without firing the property event.
        * @return {Boolean} True, if the set was successful, false if it failed.
        */
        setProperty: function (key, value, silent) {
        
            var property;
        
            key = key.toLowerCase();
        
            if (this.queueInProgress && ! silent) {
                // Currently running through a queue... 
                this.queueProperty(key,value);
                return true;
    
            } else {
                property = this.config[key];
                if (property && property.event) {
                    if (property.validator && !property.validator(value)) {
                        return false;
                    } else {
                        property.value = value;
                        if (! silent) {
                            this.fireEvent(key, value);
                            this.configChangedEvent.fire([key, value]);
                        }
                        return true;
                    }
                } else {
                    return false;
                }
            }
        },
        
        /**
        * Sets the value of a property and queues its event to execute. If the 
        * event is already scheduled to execute, it is
        * moved from its current position to the end of the queue.
        * @method queueProperty
        * @param {String} key The name of the property
        * @param {String} value The value to set the property to
        * @return {Boolean}  true, if the set was successful, false if 
        * it failed.
        */ 
        queueProperty: function (key, value) {
        
            key = key.toLowerCase();
        
            var property = this.config[key],
                foundDuplicate = false,
                iLen,
                queueItem,
                queueItemKey,
                queueItemValue,
                sLen,
                supercedesCheck,
                qLen,
                queueItemCheck,
                queueItemCheckKey,
                queueItemCheckValue,
                i,
                s,
                q;
                                
            if (property && property.event) {
    
                if (!Lang.isUndefined(value) && property.validator && 
                    !property.validator(value)) { // validator
                    return false;
                } else {
        
                    if (!Lang.isUndefined(value)) {
                        property.value = value;
                    } else {
                        value = property.value;
                    }
        
                    foundDuplicate = false;
                    iLen = this.eventQueue.length;
        
                    for (i = 0; i < iLen; i++) {
                        queueItem = this.eventQueue[i];
        
                        if (queueItem) {
                            queueItemKey = queueItem[0];
                            queueItemValue = queueItem[1];
                            
                            if (queueItemKey == key) {
    
                                /*
                                    found a dupe... push to end of queue, null 
                                    current item, and break
                                */
    
                                this.eventQueue[i] = null;
    
                                this.eventQueue.push(
                                    [key, (!Lang.isUndefined(value) ? 
                                    value : queueItemValue)]);
    
                                foundDuplicate = true;
                                break;
                            }
                        }
                    }
                    
                    // this is a refire, or a new property in the queue
    
                    if (! foundDuplicate && !Lang.isUndefined(value)) { 
                        this.eventQueue.push([key, value]);
                    }
                }
        
                if (property.supercedes) {
        
                    sLen = property.supercedes.length;
        
                    for (s = 0; s < sLen; s++) {
        
                        supercedesCheck = property.supercedes[s];
                        qLen = this.eventQueue.length;
        
                        for (q = 0; q < qLen; q++) {
                            queueItemCheck = this.eventQueue[q];
        
                            if (queueItemCheck) {
                                queueItemCheckKey = queueItemCheck[0];
                                queueItemCheckValue = queueItemCheck[1];
                                
                                if (queueItemCheckKey == 
                                    supercedesCheck.toLowerCase() ) {
    
                                    this.eventQueue.push([queueItemCheckKey, 
                                        queueItemCheckValue]);
    
                                    this.eventQueue[q] = null;
                                    break;
    
                                }
                            }
                        }
                    }
                }

        
                return true;
            } else {
                return false;
            }
        },
        
        /**
        * Fires the event for a property using the property's current value.
        * @method refireEvent
        * @param {String} key The name of the property
        */
        refireEvent: function (key) {
    
            key = key.toLowerCase();
        
            var property = this.config[key];
    
            if (property && property.event && 
    
                !Lang.isUndefined(property.value)) {
    
                if (this.queueInProgress) {
    
                    this.queueProperty(key);
    
                } else {
    
                    this.fireEvent(key, property.value);
    
                }
    
            }
        },
        
        /**
        * Applies a key-value Object literal to the configuration, replacing  
        * any existing values, and queueing the property events.
        * Although the values will be set, fireQueue() must be called for their 
        * associated events to execute.
        * @method applyConfig
        * @param {Object} userConfig The configuration Object literal
        * @param {Boolean} init  When set to true, the initialConfig will 
        * be set to the userConfig passed in, so that calling a reset will 
        * reset the properties to the passed values.
        */
        applyConfig: function (userConfig, init) {
        
            var prop;
        
            if (init) {
                this.initialConfig = userConfig;
            }
            for (prop in userConfig) {
                this.queueProperty(prop, userConfig[prop]);
            }
        },
        
        /**
        * Refires the events for all configuration properties using their 
        * current values.
        * @method refresh
        */
        refresh: function () {
        
            var prop;
        
            for (prop in this.config) {
                this.refireEvent(prop);
            }
        },
        
        /**
        * Fires the normalized list of queued property change events
        * @method fireQueue
        */
        fireQueue: function () {
        
            var i, 
                queueItem,
                key,
                value,
                property;
        
            this.queueInProgress = true;
            for (i = 0;i < this.eventQueue.length; i++) {
                queueItem = this.eventQueue[i];
                if (queueItem) {
        
                    key = queueItem[0];
                    value = queueItem[1];
                    property = this.config[key];
        
                    property.value = value;
        
                    this.fireEvent(key,value);
                }
            }
            
            this.queueInProgress = false;
            this.eventQueue = [];
        },
        
        /**
        * Subscribes an external handler to the change event for any 
        * given property. 
        * @method subscribeToConfigEvent
        * @param {String} key The property name
        * @param {Function} handler The handler function to use subscribe to 
        * the property's event
        * @param {Object} obj The Object to use for scoping the event handler 
        * (see CustomEvent documentation)
        * @param {Boolean} override Optional. If true, will override "this"  
        * within the handler to map to the scope Object passed into the method.
        * @return {Boolean} True, if the subscription was successful, 
        * otherwise false.
        */ 
        subscribeToConfigEvent: function (key, handler, obj, override) {
    
            var property = this.config[key.toLowerCase()];
    
            if (property && property.event) {
    
                if (!Config.alreadySubscribed(property.event, handler, obj)) {
    
                    property.event.subscribe(handler, obj, override);
    
                }
    
                return true;
    
            } else {
    
                return false;
    
            }
    
        },
        
        /**
        * Unsubscribes an external handler from the change event for any 
        * given property. 
        * @method unsubscribeFromConfigEvent
        * @param {String} key The property name
        * @param {Function} handler The handler function to use subscribe to 
        * the property's event
        * @param {Object} obj The Object to use for scoping the event 
        * handler (see CustomEvent documentation)
        * @return {Boolean} True, if the unsubscription was successful, 
        * otherwise false.
        */
        unsubscribeFromConfigEvent: function (key, handler, obj) {
            var property = this.config[key.toLowerCase()];
            if (property && property.event) {
                return property.event.unsubscribe(handler, obj);
            } else {
                return false;
            }
        },
        
        /**
        * Returns a string representation of the Config object
        * @method toString
        * @return {String} The Config object in string format.
        */
        toString: function () {
            var output = "Config";
            if (this.owner) {
                output += " [" + this.owner.toString() + "]";
            }
            return output;
        },
        
        /**
        * Returns a string representation of the Config object's current 
        * CustomEvent queue
        * @method outputEventQueue
        * @return {String} The string list of CustomEvents currently queued 
        * for execution
        */
        outputEventQueue: function () {

            var output = "",
                queueItem,
                q,
                nQueue = this.eventQueue.length;
              
            for (q = 0; q < nQueue; q++) {
                queueItem = this.eventQueue[q];
                if (queueItem) {
                    output += queueItem[0] + "=" + queueItem[1] + ", ";
                }
            }
            return output;
        }

    };
    
    
    
    /**
    * Checks to determine if a particular function/Object pair are already 
    * subscribed to the specified CustomEvent
    * @method YAHOO.util.Config.alreadySubscribed
    * @static
    * @param {YAHOO.util.CustomEvent} evt The CustomEvent for which to check 
    * the subscriptions
    * @param {Function} fn The function to look for in the subscribers list
    * @param {Object} obj The execution scope Object for the subscription
    * @return {Boolean} true, if the function/Object pair is already subscribed 
    * to the CustomEvent passed in
    */
    Config.alreadySubscribed = function (evt, fn, obj) {
    
        var nSubscribers = evt.subscribers.length,
            subsc,
            i;

        if (nSubscribers > 0) {

            i = nSubscribers - 1;
        
            do {

                subsc = evt.subscribers[i];

                if (subsc && subsc.obj == obj && subsc.fn == fn) {
        
                    return true;
        
                }    
            
            }
            while (i--);
        
        }
    
        return false;
    
    };
    
    YAHOO.lang.augmentProto(Config, YAHOO.util.EventProvider);

}());
(function () {

    /**
    * The Container family of components is designed to enable developers to 
    * create different kinds of content-containing modules on the web. Module 
    * and Overlay are the most basic containers, and they can be used directly 
    * or extended to build custom containers. Also part of the Container family 
    * are four UI controls that extend Module and Overlay: Tooltip, Panel, 
    * Dialog, and SimpleDialog.
    * @module container
    * @title Container
    * @requires yahoo, dom, event 
    * @optional dragdrop, animation, button
    */
    
    /**
    * Module is a JavaScript representation of the Standard Module Format. 
    * Standard Module Format is a simple standard for markup containers where 
    * child nodes representing the header, body, and footer of the content are 
    * denoted using the CSS classes "hd", "bd", and "ft" respectively. 
    * Module is the base class for all other classes in the YUI 
    * Container package.
    * @namespace YAHOO.widget
    * @class Module
    * @constructor
    * @param {String} el The element ID representing the Module <em>OR</em>
    * @param {HTMLElement} el The element representing the Module
    * @param {Object} userConfig The configuration Object literal containing 
    * the configuration that should be set for this module. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Module = function (el, userConfig) {
    
        if (el) {
    
            this.init(el, userConfig);
    
        } else {
    
    
        }
    
    };


    var Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        Event = YAHOO.util.Event,
        CustomEvent = YAHOO.util.CustomEvent,
        Module = YAHOO.widget.Module,
        
        m_oModuleTemplate,
        m_oHeaderTemplate,
        m_oBodyTemplate,
        m_oFooterTemplate,

        /**
        * Constant representing the name of the Module's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
        
            "BEFORE_INIT": "beforeInit",
            "INIT": "init",
            "APPEND": "append",
            "BEFORE_RENDER": "beforeRender",
            "RENDER": "render",
            "CHANGE_HEADER": "changeHeader",
            "CHANGE_BODY": "changeBody",
            "CHANGE_FOOTER": "changeFooter",
            "CHANGE_CONTENT": "changeContent",
            "DESTORY": "destroy",
            "BEFORE_SHOW": "beforeShow",
            "SHOW": "show",
            "BEFORE_HIDE": "beforeHide",
            "HIDE": "hide"
        
        },
            
        /**
        * Constant representing the Module's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "VISIBLE": { 
                key: "visible", 
                value: true, 
                validator: YAHOO.lang.isBoolean 
            },
        
            "EFFECT": { 
                key: "effect", 
                suppressEvent: true, 
                supercedes: ["visible"] 
            },
        
            "MONITOR_RESIZE": { 
                key: "monitorresize", 
                value: true  
            }
        
        };

    
    /**
    * Constant representing the prefix path to use for non-secure images
    * @property Module.IMG_ROOT
    * @static
    * @final
    * @type String
    */
    Module.IMG_ROOT = null;
    
    /**
    * Constant representing the prefix path to use for securely served images
    * @property Module.IMG_ROOT_SSL
    * @static
    * @final
    * @type String
    */
    Module.IMG_ROOT_SSL = null;
    
    /**
    * Constant for the default CSS class name that represents a Module
    * @property Module.CSS_MODULE
    * @static
    * @final
    * @type String
    */
    Module.CSS_MODULE = "yui-module";
    
    /**
    * Constant representing the module header
    * @property Module.CSS_HEADER
    * @static
    * @final
    * @type String
    */
    Module.CSS_HEADER = "hd";
    
    /**
    * Constant representing the module body
    * @property Module.CSS_BODY
    * @static
    * @final
    * @type String
    */
    Module.CSS_BODY = "bd";
    
    /**
    * Constant representing the module footer
    * @property Module.CSS_FOOTER
    * @static
    * @final
    * @type String
    */
    Module.CSS_FOOTER = "ft";
    
    /**
    * Constant representing the url for the "src" attribute of the iframe 
    * used to monitor changes to the browser's base font size
    * @property Module.RESIZE_MONITOR_SECURE_URL
    * @static
    * @final
    * @type String
    */
    Module.RESIZE_MONITOR_SECURE_URL = "javascript:false;";
    
    /**
    * Singleton CustomEvent fired when the font size is changed in the browser.
    * Opera's "zoom" functionality currently does not support text 
    * size detection.
    * @event Module.textResizeEvent
    */
    Module.textResizeEvent = new CustomEvent("textResize");


    function createModuleTemplate() {

        if (!m_oModuleTemplate) {

            m_oModuleTemplate = document.createElement("div");
            
            m_oModuleTemplate.innerHTML = ("<div class=\"" + 
                Module.CSS_HEADER + "\"></div>" + "<div class=\"" + 
                Module.CSS_BODY + "\"></div><div class=\"" + 
                Module.CSS_FOOTER + "\"></div>");

            m_oHeaderTemplate = m_oModuleTemplate.firstChild;
            m_oBodyTemplate = m_oHeaderTemplate.nextSibling;
            m_oFooterTemplate = m_oBodyTemplate.nextSibling;

        }

        return m_oModuleTemplate;

    }


    function createHeader() {

        if (!m_oHeaderTemplate) {
        
            createModuleTemplate();
        
        }
        
        return (m_oHeaderTemplate.cloneNode(false));

    }
    

    function createBody() {

        if (!m_oBodyTemplate) {
        
            createModuleTemplate();
        
        }
        
        return (m_oBodyTemplate.cloneNode(false));
    
    }
    

    function createFooter() {

        if (!m_oFooterTemplate) {
        
            createModuleTemplate();
        
        }
        
        return (m_oFooterTemplate.cloneNode(false));

    }
    

    Module.prototype = {
    
        /**
        * The class's constructor function
        * @property contructor
        * @type Function
        */
        constructor: Module,
        
        /**
        * The main module element that contains the header, body, and footer
        * @property element
        * @type HTMLElement
        */
        element: null,
        
        /**
        * The header element, denoted with CSS class "hd"
        * @property header
        * @type HTMLElement
        */
        header: null,
        
        /**
        * The body element, denoted with CSS class "bd"
        * @property body
        * @type HTMLElement
        */
        body: null,
        
        /**
        * The footer element, denoted with CSS class "ft"
        * @property footer
        * @type HTMLElement
        */
        footer: null,
        
        /**
        * The id of the element
        * @property id
        * @type String
        */
        id: null,
        
        /**
        * The String representing the image root
        * @property imageRoot
        * @type String
        */
        imageRoot: Module.IMG_ROOT,
    
        /**
        * Initializes the custom events for Module which are fired 
        * automatically at appropriate times by the Module class.
        * @method initEvents
        */
        initEvents: function () {
        
            var SIGNATURE = CustomEvent.LIST;
        
            /**
            * CustomEvent fired prior to class initalization.
            * @event beforeInitEvent
            * @param {class} classRef class reference of the initializing 
            * class, such as this.beforeInitEvent.fire(Module)
            */
            this.beforeInitEvent = this.createEvent(EVENT_TYPES.BEFORE_INIT);
            this.beforeInitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after class initalization.
            * @event initEvent
            * @param {class} classRef class reference of the initializing 
            * class, such as this.beforeInitEvent.fire(Module)
            */  
            this.initEvent = this.createEvent(EVENT_TYPES.INIT);
            this.initEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the Module is appended to the DOM
            * @event appendEvent
            */
            this.appendEvent = this.createEvent(EVENT_TYPES.APPEND);
            this.appendEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired before the Module is rendered
            * @event beforeRenderEvent
            */
            this.beforeRenderEvent = 
                this.createEvent(EVENT_TYPES.BEFORE_RENDER);
            this.beforeRenderEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after the Module is rendered
            * @event renderEvent
            */
            this.renderEvent = this.createEvent(EVENT_TYPES.RENDER);
            this.renderEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the header content of the Module 
            * is modified
            * @event changeHeaderEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new header content
            */
            this.changeHeaderEvent = 
                this.createEvent(EVENT_TYPES.CHANGE_HEADER);
            this.changeHeaderEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired when the body content of the Module is modified
            * @event changeBodyEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new body content
            */  
            this.changeBodyEvent = this.createEvent(EVENT_TYPES.CHANGE_BODY);
            this.changeBodyEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired when the footer content of the Module 
            * is modified
            * @event changeFooterEvent
            * @param {String/HTMLElement} content String/element representing 
            * the new footer content
            */
            this.changeFooterEvent = 
                this.createEvent(EVENT_TYPES.CHANGE_FOOTER);
            this.changeFooterEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the content of the Module is modified
            * @event changeContentEvent
            */
            this.changeContentEvent = 
                this.createEvent(EVENT_TYPES.CHANGE_CONTENT);
            this.changeContentEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired when the Module is destroyed
            * @event destroyEvent
            */
            this.destroyEvent = this.createEvent(EVENT_TYPES.DESTORY);
            this.destroyEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired before the Module is shown
            * @event beforeShowEvent
            */
            this.beforeShowEvent = this.createEvent(EVENT_TYPES.BEFORE_SHOW);
            this.beforeShowEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after the Module is shown
            * @event showEvent
            */
            this.showEvent = this.createEvent(EVENT_TYPES.SHOW);
            this.showEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired before the Module is hidden
            * @event beforeHideEvent
            */
            this.beforeHideEvent = this.createEvent(EVENT_TYPES.BEFORE_HIDE);
            this.beforeHideEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after the Module is hidden
            * @event hideEvent
            */
            this.hideEvent = this.createEvent(EVENT_TYPES.HIDE);
            this.hideEvent.signature = SIGNATURE;
        }, 
        
        /**
        * String representing the current user-agent platform
        * @property platform
        * @type String
        */
        platform: function () {
        
            var ua = navigator.userAgent.toLowerCase();
        
            if (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1) {
        
                return "windows";
        
            } else if (ua.indexOf("macintosh") != -1) {
        
                return "mac";
        
            } else {
        
                return false;
        
            }
        
        }(),
        
        /**
        * String representing the user-agent of the browser
        * @deprecated Use YAHOO.env.ua
        * @property browser
        * @type String
        */
        browser: function () {
        
            var ua = navigator.userAgent.toLowerCase();
            
            /*
                 Check Opera first in case of spoof and check Safari before
                 Gecko since Safari's user agent string includes "like Gecko"
            */

            if (ua.indexOf('opera') != -1) { 
            
                return 'opera';
            
            } else if (ua.indexOf('msie 7') != -1) {
            
                return 'ie7';
            
            } else if (ua.indexOf('msie') != -1) {
            
                return 'ie';
            
            } else if (ua.indexOf('safari') != -1) { 
            
                return 'safari';
            
            } else if (ua.indexOf('gecko') != -1) {
            
                return 'gecko';
            
            } else {
            
                return false;
            
            }
        
        }(),
        
        /**
        * Boolean representing whether or not the current browsing context is 
        * secure (https)
        * @property isSecure
        * @type Boolean
        */
        isSecure: function () {
        
            if (window.location.href.toLowerCase().indexOf("https") === 0) {
        
                return true;
        
            } else {
        
                return false;
        
            }
        
        }(),
        
        /**
        * Initializes the custom events for Module which are fired 
        * automatically at appropriate times by the Module class.
        */
        initDefaultConfig: function () {
    
            // Add properties //
        
            /**
            * Specifies whether the Module is visible on the page.
            * @config visible
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.VISIBLE.key, {
                handler: this.configVisible, 
                value: DEFAULT_CONFIG.VISIBLE.value, 
                validator: DEFAULT_CONFIG.VISIBLE.validator
            });
            
            /**
            * Object or array of objects representing the ContainerEffect 
            * classes that are active for animating the container.
            * @config effect
            * @type Object
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.EFFECT.key, {
                suppressEvent: DEFAULT_CONFIG.EFFECT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.EFFECT.supercedes
            });
            
            /**
            * Specifies whether to create a special proxy iframe to monitor 
            * for user font resizing in the document
            * @config monitorresize
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.MONITOR_RESIZE.key, {
                handler: this.configMonitorResize,
                value: DEFAULT_CONFIG.MONITOR_RESIZE.value
            });
            
        },
        
        /**
        * The Module class's initialization method, which is executed for
        * Module and all of its subclasses. This method is automatically 
        * called by the constructor, and  sets up all DOM references for 
        * pre-existing markup, and creates required markup if it is not 
        * already present.
        * @method init
        * @param {String} el The element ID representing the Module <em>OR</em>
        * @param {HTMLElement} el The element representing the Module
        * @param {Object} userConfig The configuration Object literal 
        * containing the configuration that should be set for this module. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {
        
            var elId, i, child;
        
            this.initEvents();
        
            this.beforeInitEvent.fire(Module);
        
            /**
            * The Module's Config object used for monitoring 
            * configuration properties.
            * @property cfg
            * @type Config
            */
            this.cfg = new Config(this);
        
            if (this.isSecure) {
                this.imageRoot = Module.IMG_ROOT_SSL;
            }
        
            if (typeof el == "string") {

                elId = el;
        
                el = document.getElementById(el);

                if (! el) {

                    el = (createModuleTemplate()).cloneNode(false);

                    el.id = elId;

                }

            }
        
            this.element = el;
        
            if (el.id) {
                this.id = el.id;
            }
        
            child = this.element.firstChild;
            
            if (child) {

                do {

                    switch (child.className) {
    
                    case Module.CSS_HEADER:
    
                        this.header = child;
    
                        break;
    
                    case Module.CSS_BODY:
    
                        this.body = child;
    
                        break;
    
                    case Module.CSS_FOOTER:
    
                        this.footer = child;
    
                        break;
    
                    }
                    
                } while ((child = child.nextSibling));
            
            }

        
            this.initDefaultConfig();
        
            Dom.addClass(this.element, Module.CSS_MODULE);
        
            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
        
            /*
                Subscribe to the fireQueue() method of Config so that any 
                queued configuration changes are excecuted upon render of 
                the Module
            */ 
            
            if (!Config.alreadySubscribed(this.renderEvent, 
                this.cfg.fireQueue, this.cfg)) {

                this.renderEvent.subscribe(this.cfg.fireQueue, this.cfg, true);

            }
        
            this.initEvent.fire(Module);
        },
        
        /**
        * Initialized an empty IFRAME that is placed out of the visible area 
        * that can be used to detect text resize.
        * @method initResizeMonitor
        */
        initResizeMonitor: function () {
        
            var oDoc, 
                oIFrame, 
                sHTML;
        
            function fireTextResize() {
        
                Module.textResizeEvent.fire();
        
            }
        
            if (!YAHOO.env.ua.opera) {
        
                oIFrame = Dom.get("_yuiResizeMonitor");
        
                if (!oIFrame) {
        
                    oIFrame = document.createElement("iframe");
        
                    if (this.isSecure && Module.RESIZE_MONITOR_SECURE_URL && 
                        YAHOO.env.ua.ie) {
    
                        oIFrame.src = Module.RESIZE_MONITOR_SECURE_URL;
    
                    }


                    /*
                        Need to set "src" attribute of the iframe to 
                        prevent the browser from reporting duplicate 
                        cookies. (See SourceForge bug #1721755)
                    */
        
                    if (YAHOO.env.ua.gecko) {

                        sHTML = "<html><head><script " +
                                "type=\"text/javascript\">" + 
                                "window.onresize=function(){window.parent." +
                                "YAHOO.widget.Module.textResizeEvent." +
                                "fire();};window.parent.YAHOO.widget.Module." +
                                "textResizeEvent.fire();</script></head>" + 
                                "<body></body></html>";

                        oIFrame.src = "data:text/html;charset=utf-8," + 
                            encodeURIComponent(sHTML);

                    }

                    oIFrame.id = "_yuiResizeMonitor";
                    
                    /*
                        Need to set "position" property before inserting the 
                        iframe into the document or Safari's status bar will 
                        forever indicate the iframe is loading 
                        (See SourceForge bug #1723064)
                    */
                    
                    oIFrame.style.position = "absolute";
                    oIFrame.style.visibility = "hidden";
        
                    document.body.appendChild(oIFrame);
        
                    oIFrame.style.width = "10em";
                    oIFrame.style.height = "10em";
                    oIFrame.style.top = (-1 * oIFrame.offsetHeight) + "px";
                    oIFrame.style.left = (-1 * oIFrame.offsetWidth) + "px";
                    oIFrame.style.borderWidth = "0";
                    oIFrame.style.visibility = "visible";
        
                    if (YAHOO.env.ua.webkit) {
        
                        oDoc = oIFrame.contentWindow.document;
        
                        oDoc.open();
                        oDoc.close();
        
                    }

                }
        
                if (oIFrame && oIFrame.contentWindow) {

                    Module.textResizeEvent.subscribe(this.onDomResize, 
                        this, true);
        
                    if (!Module.textResizeInitialized) {

                        if (!Event.on(oIFrame.contentWindow, "resize", 
                            fireTextResize)) {

                            /*
                                 This will fail in IE if document.domain has 
                                 changed, so we must change the listener to 
                                 use the oIFrame element instead
                            */

                            Event.on(oIFrame, "resize", fireTextResize);

                        }

                        Module.textResizeInitialized = true;

                    }

                    this.resizeMonitor = oIFrame;

                }
        
            }
        
        },
        
        /**
        * Event handler fired when the resize monitor element is resized.
        * @method onDomResize
        * @param {DOMEvent} e The DOM resize event
        * @param {Object} obj The scope object passed to the handler
        */
        onDomResize: function (e, obj) {
        
            var nLeft = -1 * this.resizeMonitor.offsetWidth,
                nTop = -1 * this.resizeMonitor.offsetHeight;
        
            this.resizeMonitor.style.top = nTop + "px";
            this.resizeMonitor.style.left =  nLeft + "px";
        
        },
        
        /**
        * Sets the Module's header content to the HTML specified, or appends 
        * the passed element to the header. If no header is present, one will 
        * be automatically created.
        * @method setHeader
        * @param {String} headerContent The HTML used to set the header 
        * <em>OR</em>
        * @param {HTMLElement} headerContent The HTMLElement to append to 
        * the header
        */
        setHeader: function (headerContent) {

            var oHeader = this.header || (this.header = createHeader());
        
            if (typeof headerContent == "string") {

                oHeader.innerHTML = headerContent;

            } else {

                oHeader.innerHTML = "";
                oHeader.appendChild(headerContent);

            }
        
            this.changeHeaderEvent.fire(headerContent);
            this.changeContentEvent.fire();

        },
        
        /**
        * Appends the passed element to the header. If no header is present, 
        * one will be automatically created.
        * @method appendToHeader
        * @param {HTMLElement} element The element to append to the header
        */
        appendToHeader: function (element) {

            var oHeader = this.header || (this.header = createHeader());
        
            oHeader.appendChild(element);

            this.changeHeaderEvent.fire(element);
            this.changeContentEvent.fire();

        },
        
        /**
        * Sets the Module's body content to the HTML specified, or appends the
        * passed element to the body. If no body is present, one will be 
        * automatically created.
        * @method setBody
        * @param {String} bodyContent The HTML used to set the body <em>OR</em>
        * @param {HTMLElement} bodyContent The HTMLElement to append to the body
        */
        setBody: function (bodyContent) {

            var oBody = this.body || (this.body = createBody());
        
            if (typeof bodyContent == "string") {

                oBody.innerHTML = bodyContent;

            } else {

                oBody.innerHTML = "";
                oBody.appendChild(bodyContent);

            }
        
            this.changeBodyEvent.fire(bodyContent);
            this.changeContentEvent.fire();

        },
        
        /**
        * Appends the passed element to the body. If no body is present, one 
        * will be automatically created.
        * @method appendToBody
        * @param {HTMLElement} element The element to append to the body
        */
        appendToBody: function (element) {

            var oBody = this.body || (this.body = createBody());
        
            oBody.appendChild(element);

            this.changeBodyEvent.fire(element);
            this.changeContentEvent.fire();

        },
        
        /**
        * Sets the Module's footer content to the HTML specified, or appends 
        * the passed element to the footer. If no footer is present, one will 
        * be automatically created.
        * @method setFooter
        * @param {String} footerContent The HTML used to set the footer 
        * <em>OR</em>
        * @param {HTMLElement} footerContent The HTMLElement to append to 
        * the footer
        */
        setFooter: function (footerContent) {

            var oFooter = this.footer || (this.footer = createFooter());
        
            if (typeof footerContent == "string") {

                oFooter.innerHTML = footerContent;

            } else {

                oFooter.innerHTML = "";
                oFooter.appendChild(footerContent);

            }
        
            this.changeFooterEvent.fire(footerContent);
            this.changeContentEvent.fire();

        },
        
        /**
        * Appends the passed element to the footer. If no footer is present, 
        * one will be automatically created.
        * @method appendToFooter
        * @param {HTMLElement} element The element to append to the footer
        */
        appendToFooter: function (element) {

            var oFooter = this.footer || (this.footer = createFooter());
        
            oFooter.appendChild(element);

            this.changeFooterEvent.fire(element);
            this.changeContentEvent.fire();

        },
        
        /**
        * Renders the Module by inserting the elements that are not already 
        * in the main Module into their correct places. Optionally appends 
        * the Module to the specified node prior to the render's execution. 
        * NOTE: For Modules without existing markup, the appendToNode argument 
        * is REQUIRED. If this argument is ommitted and the current element is 
        * not present in the document, the function will return false, 
        * indicating that the render was a failure.
        * @method render
        * @param {String} appendToNode The element id to which the Module 
        * should be appended to prior to rendering <em>OR</em>
        * @param {HTMLElement} appendToNode The element to which the Module 
        * should be appended to prior to rendering
        * @param {HTMLElement} moduleElement OPTIONAL. The element that 
        * represents the actual Standard Module container.
        * @return {Boolean} Success or failure of the render
        */
        render: function (appendToNode, moduleElement) {
        
            var me = this,
                firstChild;
        
            function appendTo(element) {
                if (typeof element == "string") {
                    element = document.getElementById(element);
                }
        
                if (element) {
                    element.appendChild(me.element);
                    me.appendEvent.fire();
                }
            }
        
            this.beforeRenderEvent.fire();
        
            if (! moduleElement) {
                moduleElement = this.element;
            }
        
            if (appendToNode) {

                appendTo(appendToNode);

            } else { 

                /*
                     No node was passed in. If the element is not already in 
                     the Dom, this fails
                */

                if (! Dom.inDocument(this.element)) {


                    return false;

                }

            }
        
            // Need to get everything into the DOM if it isn't already
        
            if (this.header && ! Dom.inDocument(this.header)) {

                /*
                    There is a header, but it's not in the DOM yet... 
                    need to add it
                */

                firstChild = moduleElement.firstChild;

                if (firstChild) { // Insert before first child if exists

                    moduleElement.insertBefore(this.header, firstChild);

                } else { // Append to empty body because there are no children

                    moduleElement.appendChild(this.header);

                }

            }
        
            if (this.body && ! Dom.inDocument(this.body)) {

                /*
                     There is a body, but it's not in the DOM yet... 
                     need to add it
                */


                // Insert before footer if exists in DOM

                if (this.footer && Dom.isAncestor(
                    this.moduleElement, this.footer)) { 

                    moduleElement.insertBefore(this.body, this.footer);

                } else { // Append to element because there is no footer

                    moduleElement.appendChild(this.body);

                }

            }
        
            if (this.footer && ! Dom.inDocument(this.footer)) {

                /*
                     There is a footer, but it's not in the DOM yet... 
                     need to add it
                */

                moduleElement.appendChild(this.footer);

            }
        
            this.renderEvent.fire();
            return true;
        },
        
        /**
        * Removes the Module element from the DOM and sets all child elements 
        * to null.
        * @method destroy
        */
        destroy: function () {
        
            var parent,
                e;
        
            if (this.element) {
                Event.purgeElement(this.element, true);
                parent = this.element.parentNode;
            }
            if (parent) {
                parent.removeChild(this.element);
            }
        
            this.element = null;
            this.header = null;
            this.body = null;
            this.footer = null;
        
            for (e in this) {
                if (e instanceof CustomEvent) {
                    e.unsubscribeAll();
                }
            }
        
            Module.textResizeEvent.unsubscribe(
                this.onDomResize, this);
        
            this.destroyEvent.fire();
        },
        
        /**
        * Shows the Module element by setting the visible configuration 
        * property to true. Also fires two events: beforeShowEvent prior to 
        * the visibility change, and showEvent after.
        * @method show
        */
        show: function () {
            this.cfg.setProperty("visible", true);
        },
        
        /**
        * Hides the Module element by setting the visible configuration 
        * property to false. Also fires two events: beforeHideEvent prior to 
        * the visibility change, and hideEvent after.
        * @method hide
        */
        hide: function () {
            this.cfg.setProperty("visible", false);
        },
        
        // BUILT-IN EVENT HANDLERS FOR MODULE //
        
        /**
        * Default event handler for changing the visibility property of a 
        * Module. By default, this is achieved by switching the "display" style 
        * between "block" and "none".
        * This method is responsible for firing showEvent and hideEvent.
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        * @method configVisible
        */
        configVisible: function (type, args, obj) {
            var visible = args[0];
            if (visible) {
                this.beforeShowEvent.fire();
                Dom.setStyle(this.element, "display", "block");
                this.showEvent.fire();
            } else {
                this.beforeHideEvent.fire();
                Dom.setStyle(this.element, "display", "none");
                this.hideEvent.fire();
            }
        },
        
        /**
        * Default event handler for the "monitorresize" configuration property
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        * @method configMonitorResize
        */
        configMonitorResize: function (type, args, obj) {

            var monitor = args[0];

            if (monitor) {

                this.initResizeMonitor();

            } else {

                Module.textResizeEvent.unsubscribe(
                    this.onDomResize, this, true);

                this.resizeMonitor = null;
            }

        },
        
        /**
        * Returns a String representation of the Object.
        * @method toString
        * @return {String} The string representation of the Module
        */
        toString: function () {
            return "Module " + this.id;
        }
        
    };
    
    YAHOO.lang.augmentProto(Module, YAHOO.util.EventProvider);

}());
(function () {

    /**
    * Overlay is a Module that is absolutely positioned above the page flow. It 
    * has convenience methods for positioning and sizing, as well as options for 
    * controlling zIndex and constraining the Overlay's position to the current 
    * visible viewport. Overlay also contains a dynamicly generated IFRAME which 
    * is placed beneath it for Internet Explorer 6 and 5.x so that it will be 
    * properly rendered above SELECT elements.
    * @namespace YAHOO.widget
    * @class Overlay
    * @extends Module
    * @param {String} el The element ID representing the Overlay <em>OR</em>
    * @param {HTMLElement} el The element representing the Overlay
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Overlay. See configuration 
    * documentation for more details.
    * @constructor
    */
    YAHOO.widget.Overlay = function (el, userConfig) {
    
        YAHOO.widget.Overlay.superclass.constructor.call(this, el, userConfig);
    
    };


    var Lang = YAHOO.lang,
        CustomEvent = YAHOO.util.CustomEvent,
        Module = YAHOO.widget.Module,
        Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        Overlay = YAHOO.widget.Overlay,

        /**
        * Constant representing the name of the Overlay's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
        
            "BEFORE_MOVE": "beforeMove",
            "MOVE": "move"
        
        },
        
        /**
        * Constant representing the Overlay's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "X": { 
                key: "x", 
                validator: Lang.isNumber, 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },
        
            "Y": { 
                key: "y", 
                validator: Lang.isNumber, 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },
        
            "XY": { 
                key: "xy", 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },
        
            "CONTEXT": { 
                key: "context", 
                suppressEvent: true, 
                supercedes: ["iframe"] 
            },
        
            "FIXED_CENTER": { 
                key: "fixedcenter", 
                value: false, 
                validator: Lang.isBoolean, 
                supercedes: ["iframe", "visible"] 
            },
        
            "WIDTH": { 
                key: "width", 
                suppressEvent: true, 
                supercedes: ["context", "fixedcenter", "iframe"] 
            }, 
        
            "HEIGHT": { 
                key: "height", 
                suppressEvent: true, 
                supercedes: ["context", "fixedcenter", "iframe"] 
            }, 
        
            "ZINDEX": { 
                key: "zindex", 
                value: null 
            }, 
        
            "CONSTRAIN_TO_VIEWPORT": { 
                key: "constraintoviewport", 
                value: false, 
                validator: Lang.isBoolean, 
                supercedes: ["iframe", "x", "y", "xy"] 
            }, 
        
            "IFRAME": { 
                key: "iframe", 
                value: (YAHOO.env.ua.ie == 6 ? true : false), 
                validator: Lang.isBoolean, 
                supercedes: ["zindex"] 
            }
        
        };


    /**
    * The URL that will be placed in the iframe
    * @property Overlay.IFRAME_SRC
    * @static
    * @final
    * @type String
    */
    Overlay.IFRAME_SRC = "javascript:false;";
    
    /**
    * Constant representing the top left corner of an element, used for 
    * configuring the context element alignment
    * @property Overlay.TOP_LEFT
    * @static
    * @final
    * @type String
    */
    Overlay.TOP_LEFT = "tl";
    
    /**
    * Constant representing the top right corner of an element, used for 
    * configuring the context element alignment
    * @property Overlay.TOP_RIGHT
    * @static
    * @final
    * @type String
    */
    Overlay.TOP_RIGHT = "tr";
    
    /**
    * Constant representing the top bottom left corner of an element, used for 
    * configuring the context element alignment
    * @property Overlay.BOTTOM_LEFT
    * @static
    * @final
    * @type String
    */
    Overlay.BOTTOM_LEFT = "bl";
    
    /**
    * Constant representing the bottom right corner of an element, used for 
    * configuring the context element alignment
    * @property Overlay.BOTTOM_RIGHT
    * @static
    * @final
    * @type String
    */
    Overlay.BOTTOM_RIGHT = "br";
    
    /**
    * Constant representing the default CSS class used for an Overlay
    * @property Overlay.CSS_OVERLAY
    * @static
    * @final
    * @type String
    */
    Overlay.CSS_OVERLAY = "yui-overlay";
    
    
    /**
    * A singleton CustomEvent used for reacting to the DOM event for 
    * window scroll
    * @event Overlay.windowScrollEvent
    */
    Overlay.windowScrollEvent = new CustomEvent("windowScroll");
    
    /**
    * A singleton CustomEvent used for reacting to the DOM event for
    * window resize
    * @event Overlay.windowResizeEvent
    */
    Overlay.windowResizeEvent = new CustomEvent("windowResize");
    
    /**
    * The DOM event handler used to fire the CustomEvent for window scroll
    * @method Overlay.windowScrollHandler
    * @static
    * @param {DOMEvent} e The DOM scroll event
    */
    Overlay.windowScrollHandler = function (e) {
    
        if (YAHOO.env.ua.ie) {
    
            if (! window.scrollEnd) {
    
                window.scrollEnd = -1;
    
            }
    
            clearTimeout(window.scrollEnd);
    
            window.scrollEnd = setTimeout(function () { 
            
                Overlay.windowScrollEvent.fire(); 
    
            }, 1);
    
        } else {
    
            Overlay.windowScrollEvent.fire();
    
        }
    
    };
    
    /**
    * The DOM event handler used to fire the CustomEvent for window resize
    * @method Overlay.windowResizeHandler
    * @static
    * @param {DOMEvent} e The DOM resize event
    */
    Overlay.windowResizeHandler = function (e) {
    
        if (YAHOO.env.ua.ie) {
    
            if (! window.resizeEnd) {
                window.resizeEnd = -1;
            }
    
            clearTimeout(window.resizeEnd);
    
            window.resizeEnd = setTimeout(function () {
    
                Overlay.windowResizeEvent.fire(); 
    
            }, 100);
    
        } else {
    
            Overlay.windowResizeEvent.fire();
    
        }
    
    };
    
    /**
    * A boolean that indicated whether the window resize and scroll events have 
    * already been subscribed to.
    * @property Overlay._initialized
    * @private
    * @type Boolean
    */
    Overlay._initialized = null;
    
    if (Overlay._initialized === null) {
    
        Event.on(window, "scroll", 
            Overlay.windowScrollHandler);
    
        Event.on(window, "resize", 
            Overlay.windowResizeHandler);
    
        Overlay._initialized = true;
    
    }
    
    YAHOO.extend(Overlay, Module, {
    
        /**
        * The Overlay initialization method, which is executed for Overlay and  
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * @method init
        * @param {String} el The element ID representing the Overlay <em>OR</em>
        * @param {HTMLElement} el The element representing the Overlay
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Overlay. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {
    
            /*
                 Note that we don't pass the user config in here yet because we
                 only want it executed once, at the lowest subclass level
            */
    
            Overlay.superclass.init.call(this, el/*, userConfig*/);  
            
            this.beforeInitEvent.fire(Overlay);
            
            Dom.addClass(this.element, Overlay.CSS_OVERLAY);
            
            if (userConfig) {
    
                this.cfg.applyConfig(userConfig, true);
    
            }
            
            if (this.platform == "mac" && YAHOO.env.ua.gecko) {
    
                if (! Config.alreadySubscribed(this.showEvent,
                    this.showMacGeckoScrollbars, this)) {
    
                    this.showEvent.subscribe(this.showMacGeckoScrollbars, 
                        this, true);
    
                }
    
                if (! Config.alreadySubscribed(this.hideEvent, 
                    this.hideMacGeckoScrollbars, this)) {
    
                    this.hideEvent.subscribe(this.hideMacGeckoScrollbars, 
                        this, true);
    
                }
    
            }
            
            this.initEvent.fire(Overlay);
        
        },
        
        /**
        * Initializes the custom events for Overlay which are fired  
        * automatically at appropriate times by the Overlay class.
        * @method initEvents
        */
        initEvents: function () {
    
            Overlay.superclass.initEvents.call(this);
            
            var SIGNATURE = CustomEvent.LIST;
            
            /**
            * CustomEvent fired before the Overlay is moved.
            * @event beforeMoveEvent
            * @param {Number} x x coordinate
            * @param {Number} y y coordinate
            */
            this.beforeMoveEvent = this.createEvent(EVENT_TYPES.BEFORE_MOVE);
            this.beforeMoveEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired after the Overlay is moved.
            * @event moveEvent
            * @param {Number} x x coordinate
            * @param {Number} y y coordinate
            */
            this.moveEvent = this.createEvent(EVENT_TYPES.MOVE);
            this.moveEvent.signature = SIGNATURE;
        
        },
        
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the Overlay's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
    
            Overlay.superclass.initDefaultConfig.call(this);
            
            
            // Add overlay config properties //
            
            /**
            * The absolute x-coordinate position of the Overlay
            * @config x
            * @type Number
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.X.key, { 
    
                handler: this.configX, 
                validator: DEFAULT_CONFIG.X.validator, 
                suppressEvent: DEFAULT_CONFIG.X.suppressEvent, 
                supercedes: DEFAULT_CONFIG.X.supercedes
    
            });
        
    
            /**
            * The absolute y-coordinate position of the Overlay
            * @config y
            * @type Number
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.Y.key, {
    
                handler: this.configY, 
                validator: DEFAULT_CONFIG.Y.validator, 
                suppressEvent: DEFAULT_CONFIG.Y.suppressEvent, 
                supercedes: DEFAULT_CONFIG.Y.supercedes
    
            });
        
    
            /**
            * An array with the absolute x and y positions of the Overlay
            * @config xy
            * @type Number[]
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.XY.key, {
            
                handler: this.configXY, 
                suppressEvent: DEFAULT_CONFIG.XY.suppressEvent, 
                supercedes: DEFAULT_CONFIG.XY.supercedes
            
            });
        
    
            /**
            * The array of context arguments for context-sensitive positioning.  
            * The format is: [id or element, element corner, context corner]. 
            * For example, setting this property to ["img1", "tl", "bl"] would 
            * align the Overlay's top left corner to the context element's 
            * bottom left corner.
            * @config context
            * @type Array
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CONTEXT.key, {
            
                handler: this.configContext, 
                suppressEvent: DEFAULT_CONFIG.CONTEXT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.CONTEXT.supercedes
            
            });
        
    
            /**
            * True if the Overlay should be anchored to the center of 
            * the viewport.
            * @config fixedcenter
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.FIXED_CENTER.key, {
            
                handler: this.configFixedCenter,
                value: DEFAULT_CONFIG.FIXED_CENTER.value, 
                validator: DEFAULT_CONFIG.FIXED_CENTER.validator, 
                supercedes: DEFAULT_CONFIG.FIXED_CENTER.supercedes
            
            });
        
    
            /**
            * CSS width of the Overlay.
            * @config width
            * @type String
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.WIDTH.key, {
            
                handler: this.configWidth, 
                suppressEvent: DEFAULT_CONFIG.WIDTH.suppressEvent, 
                supercedes: DEFAULT_CONFIG.WIDTH.supercedes
            
            });
            
            /**
            * CSS height of the Overlay.
            * @config height
            * @type String
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.HEIGHT.key, {
            
                handler: this.configHeight, 
                suppressEvent: DEFAULT_CONFIG.HEIGHT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.HEIGHT.supercedes
            
            });
            
            /**
            * CSS z-index of the Overlay.
            * @config zIndex
            * @type Number
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.ZINDEX.key, {
    
                handler: this.configzIndex,
                value: DEFAULT_CONFIG.ZINDEX.value
    
            });
            
            /**
            * True if the Overlay should be prevented from being positioned 
            * out of the viewport.
            * @config constraintoviewport
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.key, {
            
                handler: this.configConstrainToViewport, 
                value: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.value, 
                validator: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.validator, 
                supercedes: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.supercedes
            
            });
            
            /**
            * True if the Overlay should have an IFRAME shim (for correcting  
            * the select z-index bug in IE6 and below).
            * @config iframe
            * @type Boolean
            * @default true for IE6 and below, false for all others
            */
            this.cfg.addProperty(DEFAULT_CONFIG.IFRAME.key, {
            
                handler: this.configIframe, 
                value: DEFAULT_CONFIG.IFRAME.value, 
                validator: DEFAULT_CONFIG.IFRAME.validator, 
                supercedes: DEFAULT_CONFIG.IFRAME.supercedes
            
            });
        
        },
        
        /**
        * Moves the Overlay to the specified position. This function is  
        * identical to calling this.cfg.setProperty("xy", [x,y]);
        * @method moveTo
        * @param {Number} x The Overlay's new x position
        * @param {Number} y The Overlay's new y position
        */
        moveTo: function (x, y) {
    
            this.cfg.setProperty("xy", [x, y]);
    
        },
        
        /**
        * Adds a CSS class ("hide-scrollbars") and removes a CSS class 
        * ("show-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X 
        * (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
        * @method hideMacGeckoScrollbars
        */
        hideMacGeckoScrollbars: function () {
    
            Dom.removeClass(this.element, "show-scrollbars");
            Dom.addClass(this.element, "hide-scrollbars");
    
        },
        
        /**
        * Adds a CSS class ("show-scrollbars") and removes a CSS class 
        * ("hide-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X 
        * (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
        * @method showMacGeckoScrollbars
        */
        showMacGeckoScrollbars: function () {
    
            Dom.removeClass(this.element, "hide-scrollbars");
            Dom.addClass(this.element, "show-scrollbars");
    
        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "visible" property is 
        * changed.  This method is responsible for firing showEvent
        * and hideEvent.
        * @method configVisible
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configVisible: function (type, args, obj) {
    
            var visible = args[0],
                currentVis = Dom.getStyle(this.element, "visibility"),
                effect = this.cfg.getProperty("effect"),
                effectInstances = [],
                isMacGecko = (this.platform == "mac" && YAHOO.env.ua.gecko),
                alreadySubscribed = Config.alreadySubscribed,
                eff, ei, e, i, j, k, h,
                nEffects,
                nEffectInstances;
    
    
            if (currentVis == "inherit") {
    
                e = this.element.parentNode;
    
                while (e.nodeType != 9 && e.nodeType != 11) {
    
                    currentVis = Dom.getStyle(e, "visibility");
    
                    if (currentVis != "inherit") { 
    
                        break; 
    
                    }
    
                    e = e.parentNode;
    
                }
    
                if (currentVis == "inherit") {
    
                    currentVis = "visible";
                
                }
    
            }
        
    
            if (effect) {
    
                if (effect instanceof Array) {

                    nEffects = effect.length;
    
                    for (i = 0; i < nEffects; i++) {
    
                        eff = effect[i];
    
                        effectInstances[effectInstances.length] = 
                            eff.effect(this, eff.duration);
    
                    }
    
                } else {
    
                    effectInstances[effectInstances.length] = 
                        effect.effect(this, effect.duration);
    
                }
    
            }
    
        
            if (visible) { // Show
    
                if (isMacGecko) {
    
                    this.showMacGeckoScrollbars();
    
                }
                
    
                if (effect) { // Animate in
    
    
                    if (visible) { // Animate in if not showing
    
    
                        if (currentVis != "visible" || currentVis === "") {
    
                            this.beforeShowEvent.fire();

                            nEffectInstances = effectInstances.length;
    
                            for (j = 0; j < nEffectInstances; j++) {
    
                                ei = effectInstances[j];
    
                                if (j === 0 && !alreadySubscribed(
                                        ei.animateInCompleteEvent, 
                                        this.showEvent.fire, this.showEvent)) {
    
                                    /*
                                         Delegate showEvent until end 
                                         of animateInComplete
                                    */
    
                                    ei.animateInCompleteEvent.subscribe(
                                     this.showEvent.fire, this.showEvent, true);
    
                                }
    
                                ei.animateIn();
    
                            }
    
                        }
    
                    }
    
                } else { // Show
    
                    if (currentVis != "visible" || currentVis === "") {
    
                        this.beforeShowEvent.fire();
    
                        Dom.setStyle(this.element, "visibility", "visible");
    
                        this.cfg.refireEvent("iframe");
                        this.showEvent.fire();
    
                    }
        
                }
        
            } else { // Hide
    
                if (isMacGecko) {
    
                    this.hideMacGeckoScrollbars();
    
                }
                    
                if (effect) { // Animate out if showing
    
                    if (currentVis == "visible") {
    
                        this.beforeHideEvent.fire();

                        nEffectInstances = effectInstances.length;
    
                        for (k = 0; k < nEffectInstances; k++) {
    
                            h = effectInstances[k];
    
                            if (k === 0 && !alreadySubscribed(
                                h.animateOutCompleteEvent, this.hideEvent.fire, 
                                this.hideEvent)) {
    
                                /*
                                     Delegate hideEvent until end 
                                     of animateOutComplete
                                */
    
                                h.animateOutCompleteEvent.subscribe(
                                    this.hideEvent.fire, this.hideEvent, true);
    
                            }
    
                            h.animateOut();
    
                        }
    
                    } else if (currentVis === "") {
    
                        Dom.setStyle(this.element, "visibility", "hidden");
    
                    }
    
                } else { // Simple hide
    
                    if (currentVis == "visible" || currentVis === "") {
    
                        this.beforeHideEvent.fire();
    
                        Dom.setStyle(this.element, "visibility", "hidden");
    
                        this.cfg.refireEvent("iframe");
                        this.hideEvent.fire();
    
                    }
    
                }
    
            }
    
        },
        
        /**
        * Center event handler used for centering on scroll/resize, but only if 
        * the Overlay is visible
        * @method doCenterOnDOMEvent
        */
        doCenterOnDOMEvent: function () {
    
            if (this.cfg.getProperty("visible")) {
    
                this.center();
    
            }
    
        },
        
        /**
        * The default event handler fired when the "fixedcenter" property 
        * is changed.
        * @method configFixedCenter
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configFixedCenter: function (type, args, obj) {
    
            var val = args[0],
                alreadySubscribed = Config.alreadySubscribed,
                windowResizeEvent = Overlay.windowResizeEvent,
                windowScrollEvent = Overlay.windowScrollEvent;
            
            if (val) {
    
                this.center();
            
                if (!alreadySubscribed(this.beforeShowEvent, 
                    this.center, this)) {
    
                    this.beforeShowEvent.subscribe(this.center);
    
                }
            
                if (!alreadySubscribed(windowResizeEvent, 
                    this.doCenterOnDOMEvent, this)) {
    
                    windowResizeEvent.subscribe(this.doCenterOnDOMEvent, 
                        this, true);
    
                }
            
                if (!alreadySubscribed(windowScrollEvent, 
                    this.doCenterOnDOMEvent, this)) {
        
                    windowScrollEvent.subscribe(this.doCenterOnDOMEvent, 
                        this, true);
    
                }
    
            } else {
    
                this.beforeShowEvent.unsubscribe(this.center);
    
                windowResizeEvent.unsubscribe(this.doCenterOnDOMEvent, this);
                windowScrollEvent.unsubscribe(this.doCenterOnDOMEvent, this);
    
            }
    
        },
        
        /**
        * The default event handler fired when the "height" property is changed.
        * @method configHeight
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configHeight: function (type, args, obj) {
    
            var height = args[0],
                el = this.element;
    
            Dom.setStyle(el, "height", height);
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * The default event handler fired when the "width" property is changed.
        * @method configWidth
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configWidth: function (type, args, obj) {
    
            var width = args[0],
                el = this.element;
    
            Dom.setStyle(el, "width", width);
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * The default event handler fired when the "zIndex" property is changed.
        * @method configzIndex
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configzIndex: function (type, args, obj) {
    
            var zIndex = args[0],
                el = this.element;
        
            if (! zIndex) {
    
                zIndex = Dom.getStyle(el, "zIndex");
        
                if (! zIndex || isNaN(zIndex)) {
    
                    zIndex = 0;
    
                }
    
            }
            
            if (this.iframe) {
    
                if (zIndex <= 0) {
    
                    zIndex = 1;
    
                }
    
                Dom.setStyle(this.iframe, "zIndex", (zIndex - 1));
            }
            
            Dom.setStyle(el, "zIndex", zIndex);
            this.cfg.setProperty("zIndex", zIndex, true);
    
        },
        
        /**
        * The default event handler fired when the "xy" property is changed.
        * @method configXY
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configXY: function (type, args, obj) {
    
            var pos = args[0],
                x = pos[0],
                y = pos[1];
            
            this.cfg.setProperty("x", x);
            this.cfg.setProperty("y", y);
            
            this.beforeMoveEvent.fire([x, y]);
            
            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");
            
            
            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
    
        },
        
        /**
        * The default event handler fired when the "x" property is changed.
        * @method configX
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configX: function (type, args, obj) {
    
            var x = args[0],
                y = this.cfg.getProperty("y");
            
            this.cfg.setProperty("x", x, true);
            this.cfg.setProperty("y", y, true);
            
            this.beforeMoveEvent.fire([x, y]);
            
            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");
            
            Dom.setX(this.element, x, true);
            
            this.cfg.setProperty("xy", [x, y], true);
           
            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
    
        },
        
        /**
        * The default event handler fired when the "y" property is changed.
        * @method configY
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configY: function (type, args, obj) {
    
            var x = this.cfg.getProperty("x"),
                y = args[0];
        
            this.cfg.setProperty("x", x, true);
            this.cfg.setProperty("y", y, true);
            
            this.beforeMoveEvent.fire([x, y]);
            
            x = this.cfg.getProperty("x");
            y = this.cfg.getProperty("y");
            
            Dom.setY(this.element, y, true);
            
            this.cfg.setProperty("xy", [x, y], true);
            
            this.cfg.refireEvent("iframe");
            this.moveEvent.fire([x, y]);
    
        },
        
        /**
        * Shows the iframe shim, if it has been enabled
        * @method showIframe
        */
        showIframe: function () {
    
            if (this.iframe) {
    
                this.iframe.style.display = "block";
    
            }
    
        },
        
        /**
        * Hides the iframe shim, if it has been enabled
        * @method hideIframe
        */
        hideIframe: function () {
    
            if (this.iframe) {
    
                this.iframe.style.display = "none";
    
            }
    
        },
        
        /**
        * The default event handler fired when the "iframe" property is changed.
        * @method configIframe
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configIframe: function (type, args, obj) {
        
            var val = args[0],
                alreadySubscribed = Config.alreadySubscribed,
                x, y, parent, iframeDisplay, width, height;
            
            if (val) { // IFRAME shim is enabled
            
                if (!alreadySubscribed(this.showEvent, this.showIframe, this)) {
    
                    this.showEvent.subscribe(this.showIframe, this, true);
    
                }
    
                if (!alreadySubscribed(this.hideEvent, this.hideIframe, this)) {
    
                    this.hideEvent.subscribe(this.hideIframe, this, true);
    
                }
            
                x = this.cfg.getProperty("x");
                y = this.cfg.getProperty("y");
            
                if (! x || ! y) {
    
                    this.syncPosition();
                    x = this.cfg.getProperty("x");
                    y = this.cfg.getProperty("y");
    
                }
            
            
                if (! isNaN(x) && ! isNaN(y)) {
    
                    if (! this.iframe) {
    
                        this.iframe = document.createElement("iframe");
    
                        if (this.isSecure) {
        
                            this.iframe.src = Overlay.IFRAME_SRC;
        
                        }
    
                        parent = this.element.parentNode;
    
                        if (parent) {
    
                            parent.appendChild(this.iframe);
    
                        } else {
    
                            document.body.appendChild(this.iframe);
    
                        }
            
                        Dom.setStyle(this.iframe, "position", "absolute");
                        Dom.setStyle(this.iframe, "border", "none");
                        Dom.setStyle(this.iframe, "margin", "0");
                        Dom.setStyle(this.iframe, "padding", "0");
                        Dom.setStyle(this.iframe, "opacity", "0");
    
                        if (this.cfg.getProperty("visible")) {
    
                            this.showIframe();
                        
                        } else {
            
                            this.hideIframe();
                        
                        }
                    }
            
                    iframeDisplay = Dom.getStyle(this.iframe, "display");
            
                    if (iframeDisplay == "none") {
    
                        this.iframe.style.display = "block";
    
                    }
            
                    Dom.setXY(this.iframe, [x, y]);
            
                    width = this.element.clientWidth;
                    height = this.element.clientHeight;
                    
                    Dom.setStyle(this.iframe, "width", ((width + 2) + "px"));
                    Dom.setStyle(this.iframe, "height", ((height + 2) + "px"));
            
                    if (iframeDisplay == "none") {
    
                        this.iframe.style.display = "none";
    
                    }
    
                }
    
            } else {
    
                if (this.iframe) {
    
                    this.iframe.style.display = "none";
    
                }
    
                this.showEvent.unsubscribe(this.showIframe, this);
                this.hideEvent.unsubscribe(this.hideIframe, this);
    
            }
    
        },
        
        
        /**
        * The default event handler fired when the "constraintoviewport" 
        * property is changed.
        * @method configConstrainToViewport
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for 
        * the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configConstrainToViewport: function (type, args, obj) {
    
            var val = args[0];
    
            if (val) {
    
                if (! Config.alreadySubscribed(this.beforeMoveEvent, 
                    this.enforceConstraints, this)) {
    
                    this.beforeMoveEvent.subscribe(this.enforceConstraints, 
                        this, true);
    
                }
    
            } else {
    
                this.beforeMoveEvent.unsubscribe(this.enforceConstraints, this);
    
            }
    
        },
        
        /**
        * The default event handler fired when the "context" property 
        * is changed.
        * @method configContext
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configContext: function (type, args, obj) {
    
            var contextArgs = args[0],
                contextEl,
                elementMagnetCorner,
                contextMagnetCorner;
            
            if (contextArgs) {
            
                contextEl = contextArgs[0];
                elementMagnetCorner = contextArgs[1];
                contextMagnetCorner = contextArgs[2];
                
                if (contextEl) {
    
                    if (typeof contextEl == "string") {
    
                        this.cfg.setProperty("context", 
                            [document.getElementById(contextEl), 
                                elementMagnetCorner, contextMagnetCorner], 
                                true);
    
                    }
                    
                    if (elementMagnetCorner && contextMagnetCorner) {
    
                        this.align(elementMagnetCorner, contextMagnetCorner);
    
                    }
    
                }
    
            }
    
        },
        
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Aligns the Overlay to its context element using the specified corner 
        * points (represented by the constants TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, 
        * and BOTTOM_RIGHT.
        * @method align
        * @param {String} elementAlign  The String representing the corner of 
        * the Overlay that should be aligned to the context element
        * @param {String} contextAlign  The corner of the context element 
        * that the elementAlign corner should stick to.
        */
        align: function (elementAlign, contextAlign) {
    
            var contextArgs = this.cfg.getProperty("context"),
                me = this,
                context,
                element,
                contextRegion;
    
    
            function doAlign(v, h) {
    
                switch (elementAlign) {
    
                case Overlay.TOP_LEFT:
    
                    me.moveTo(h, v);
    
                    break;
    
                case Overlay.TOP_RIGHT:
    
                    me.moveTo((h - element.offsetWidth), v);
    
                    break;
    
                case Overlay.BOTTOM_LEFT:
    
                    me.moveTo(h, (v - element.offsetHeight));
    
                    break;
    
                case Overlay.BOTTOM_RIGHT:
    
                    me.moveTo((h - element.offsetWidth), 
                        (v - element.offsetHeight));
    
                    break;
    
                }
    
            }
    
    
            if (contextArgs) {
            
                context = contextArgs[0];
                element = this.element;
                me = this;
                
                if (! elementAlign) {
    
                    elementAlign = contextArgs[1];
    
                }
                
                if (! contextAlign) {
    
                    contextAlign = contextArgs[2];
    
                }
                
                if (element && context) {
    
                    contextRegion = Dom.getRegion(context);
                    
                    switch (contextAlign) {
    
                    case Overlay.TOP_LEFT:
    
                        doAlign(contextRegion.top, contextRegion.left);
    
                        break;
    
                    case Overlay.TOP_RIGHT:
    
                        doAlign(contextRegion.top, contextRegion.right);
    
                        break;
    
                    case Overlay.BOTTOM_LEFT:
    
                        doAlign(contextRegion.bottom, contextRegion.left);
    
                        break;
    
                    case Overlay.BOTTOM_RIGHT:
    
                        doAlign(contextRegion.bottom, contextRegion.right);
    
                        break;
    
                    }
    
                }
    
            }
            
        },
        
        /**
        * The default event handler executed when the moveEvent is fired, if the 
        * "constraintoviewport" is set to true.
        * @method enforceConstraints
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        enforceConstraints: function (type, args, obj) {
    
            var pos = args[0],
                x = pos[0],
                y = pos[1],
                offsetHeight = this.element.offsetHeight,
                offsetWidth = this.element.offsetWidth,
                viewPortWidth = Dom.getViewportWidth(),
                viewPortHeight = Dom.getViewportHeight(),
                scrollX = Dom.getDocumentScrollLeft(),
                scrollY = Dom.getDocumentScrollTop(),
                topConstraint = scrollY + 10,
                leftConstraint = scrollX + 10,
                bottomConstraint = scrollY + viewPortHeight - offsetHeight - 10,
                rightConstraint = scrollX + viewPortWidth - offsetWidth - 10;
        
    
            if (x < leftConstraint) {
    
                x = leftConstraint;
    
            } else if (x > rightConstraint) {
    
                x = rightConstraint;
    
            }
            
            if (y < topConstraint) {
    
                y = topConstraint;
    
            } else if (y > bottomConstraint) {
    
                y = bottomConstraint;
    
            }
            
            this.cfg.setProperty("x", x, true);
            this.cfg.setProperty("y", y, true);
            this.cfg.setProperty("xy", [x, y], true);
    
        },
        
        /**
        * Centers the container in the viewport.
        * @method center
        */
        center: function () {
    
            var scrollX = Dom.getDocumentScrollLeft(),
                scrollY = Dom.getDocumentScrollTop(),
    
                viewPortWidth = Dom.getClientWidth(),
                viewPortHeight = Dom.getClientHeight(),
                elementWidth = this.element.offsetWidth,
                elementHeight = this.element.offsetHeight,
                x = (viewPortWidth / 2) - (elementWidth / 2) + scrollX,
                y = (viewPortHeight / 2) - (elementHeight / 2) + scrollY;
            
            this.cfg.setProperty("xy", [parseInt(x, 10), parseInt(y, 10)]);
            
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * Synchronizes the Panel's "xy", "x", and "y" properties with the 
        * Panel's position in the DOM. This is primarily used to update  
        * position information during drag & drop.
        * @method syncPosition
        */
        syncPosition: function () {
    
            var pos = Dom.getXY(this.element);
    
            this.cfg.setProperty("x", pos[0], true);
            this.cfg.setProperty("y", pos[1], true);
            this.cfg.setProperty("xy", pos, true);
    
        },
        
        /**
        * Event handler fired when the resize monitor element is resized.
        * @method onDomResize
        * @param {DOMEvent} e The resize DOM event
        * @param {Object} obj The scope object
        */
        onDomResize: function (e, obj) {
    
            var me = this;
    
            Overlay.superclass.onDomResize.call(this, e, obj);
    
            setTimeout(function () {
                me.syncPosition();
                me.cfg.refireEvent("iframe");
                me.cfg.refireEvent("context");
            }, 0);
    
        },

        /**
        * Places the Overlay on top of all other instances of 
        * YAHOO.widget.Overlay.
        * @method bringToTop
        */
        bringToTop: function() {
    
            var aOverlays = [],
                oElement = this.element;
    
            function compareZIndexDesc(p_oOverlay1, p_oOverlay2) {
        
                var sZIndex1 = Dom.getStyle(p_oOverlay1, "zIndex"),
        
                    sZIndex2 = Dom.getStyle(p_oOverlay2, "zIndex"),
        
                    nZIndex1 = (!sZIndex1 || isNaN(sZIndex1)) ? 
                        0 : parseInt(sZIndex1, 10),
        
                    nZIndex2 = (!sZIndex2 || isNaN(sZIndex2)) ? 
                        0 : parseInt(sZIndex2, 10);
        
                if (nZIndex1 > nZIndex2) {
        
                    return -1;
        
                } else if (nZIndex1 < nZIndex2) {
        
                    return 1;
        
                } else {
        
                    return 0;
        
                }
        
            }
        
            function isOverlayElement(p_oElement) {
        
                var oOverlay = Dom.hasClass(p_oElement, Overlay.CSS_OVERLAY),
                    Panel = YAHOO.widget.Panel;
            
                if (oOverlay && !Dom.isAncestor(oElement, oOverlay)) {
                
                    if (Panel && Dom.hasClass(p_oElement, Panel.CSS_PANEL)) {
        
                        aOverlays[aOverlays.length] = p_oElement.parentNode;
                    
                    }
                    else {
        
                        aOverlays[aOverlays.length] = p_oElement;
        
                    }
                
                }
            
            }
            
            Dom.getElementsBy(isOverlayElement, "DIV", document.body);
    
            aOverlays.sort(compareZIndexDesc);
            
            var oTopOverlay = aOverlays[0],
                nTopZIndex;
            
            if (oTopOverlay) {
    
                nTopZIndex = Dom.getStyle(oTopOverlay, "zIndex");
    
                if (!isNaN(nTopZIndex) && oTopOverlay != oElement) {
    
                    this.cfg.setProperty("zindex", 
                        (parseInt(nTopZIndex, 10) + 2));
    
                }
            
            }
        
        },
        
        /**
        * Removes the Overlay element from the DOM and sets all child 
        * elements to null.
        * @method destroy
        */
        destroy: function () {
    
            if (this.iframe) {
    
                this.iframe.parentNode.removeChild(this.iframe);
    
            }
        
            this.iframe = null;
        
            Overlay.windowResizeEvent.unsubscribe(
                this.doCenterOnDOMEvent, this);
    
            Overlay.windowScrollEvent.unsubscribe(
                this.doCenterOnDOMEvent, this);
        
            Overlay.superclass.destroy.call(this);
        },
        
        /**
        * Returns a String representation of the object.
        * @method toString
        * @return {String} The string representation of the Overlay.
        */
        toString: function () {
    
            return "Overlay " + this.id;
    
        }
    
    });
    
}());
(function () {
    
    /**
    * OverlayManager is used for maintaining the focus status of 
    * multiple Overlays.
    * @namespace YAHOO.widget
    * @namespace YAHOO.widget
    * @class OverlayManager
    * @constructor
    * @param {Array} overlays Optional. A collection of Overlays to register 
    * with the manager.
    * @param {Object} userConfig  The object literal representing the user 
    * configuration of the OverlayManager
    */
    YAHOO.widget.OverlayManager = function (userConfig) {
    
        this.init(userConfig);
    
    };


    var Overlay = YAHOO.widget.Overlay,
        Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom,
        Config = YAHOO.util.Config,
        CustomEvent = YAHOO.util.CustomEvent,
        OverlayManager = YAHOO.widget.OverlayManager;

    
    /**
    * The CSS class representing a focused Overlay
    * @property OverlayManager.CSS_FOCUSED
    * @static
    * @final
    * @type String
    */
    OverlayManager.CSS_FOCUSED = "focused";
    
    OverlayManager.prototype = {
    
        /**
        * The class's constructor function
        * @property contructor
        * @type Function
        */
        constructor: OverlayManager,
        
        /**
        * The array of Overlays that are currently registered
        * @property overlays
        * @type YAHOO.widget.Overlay[]
        */
        overlays: null,
        
        /**
        * Initializes the default configuration of the OverlayManager
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
        
            /**
            * The collection of registered Overlays in use by 
            * the OverlayManager
            * @config overlays
            * @type YAHOO.widget.Overlay[]
            * @default null
            */
            this.cfg.addProperty("overlays", { suppressEvent: true } );
        
            /**
            * The default DOM event that should be used to focus an Overlay
            * @config focusevent
            * @type String
            * @default "mousedown"
            */
            this.cfg.addProperty("focusevent", { value: "mousedown" } );
        
        },
        
        /**
        * Initializes the OverlayManager
        * @method init
        * @param {Overlay[]} overlays Optional. A collection of Overlays to 
        * register with the manager.
        * @param {Object} userConfig  The object literal representing the user 
        * configuration of the OverlayManager
        */
        init: function (userConfig) {

            /**
            * The OverlayManager's Config object used for monitoring 
            * configuration properties.
            * @property cfg
            * @type Config
            */
            this.cfg = new Config(this);
        
            this.initDefaultConfig();
        
            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
            this.cfg.fireQueue();
        
            /**
            * The currently activated Overlay
            * @property activeOverlay
            * @private
            * @type YAHOO.widget.Overlay
            */
            var activeOverlay = null;
        
            /**
            * Returns the currently focused Overlay
            * @method getActive
            * @return {Overlay} The currently focused Overlay
            */
            this.getActive = function () {
                return activeOverlay;
            };
        
            /**
            * Focuses the specified Overlay
            * @method focus
            * @param {Overlay} overlay The Overlay to focus
            * @param {String} overlay The id of the Overlay to focus
            */
            this.focus = function (overlay) {
        
                var o = this.find(overlay);
        
                if (o) {
        
                    if (activeOverlay != o) {
        
                        if (activeOverlay) {
        
                            activeOverlay.blur();
        
                        }
        
                        this.bringToTop(o);
                        
                        activeOverlay = o;
        
                        Dom.addClass(activeOverlay.element, 
                            OverlayManager.CSS_FOCUSED);

                        o.focusEvent.fire();
                        
                    }
        
                }
        
            };
        
            /**
            * Removes the specified Overlay from the manager
            * @method remove
            * @param {Overlay} overlay The Overlay to remove
            * @param {String} overlay The id of the Overlay to remove
            */
            this.remove = function (overlay) {
    
                var o = this.find(overlay),
                    originalZ;
        
                if (o) {

                    if (activeOverlay == o) {
                    
                        activeOverlay = null;
                    
                    }

                    originalZ = Dom.getStyle(o.element, "zIndex");

                    o.cfg.setProperty("zIndex", -1000, true);

                    this.overlays.sort(this.compareZIndexDesc);

                    this.overlays = 
                        this.overlays.slice(0, (this.overlays.length - 1));
        
                    o.hideEvent.unsubscribe(o.blur);
                    o.destroyEvent.unsubscribe(this._onOverlayDestroy, o);
        
                    if (o.element) {
        
                        Event.removeListener(o.element, 
                            this.cfg.getProperty("focusevent"), 
                            this._onOverlayElementFocus);
        
                    }
        
                    o.cfg.setProperty("zIndex", originalZ, true);
                    o.cfg.setProperty("manager", null);
        
                    o.focusEvent.unsubscribeAll();
                    o.blurEvent.unsubscribeAll();
        
                    o.focusEvent = null;
                    o.blurEvent = null;
        
                    o.focus = null;
                    o.blur = null;
                }

            };
        
            /**
            * Removes focus from all registered Overlays in the manager
            * @method blurAll
            */
            this.blurAll = function () {
    
                var nOverlays = this.overlays.length,
                    i;

                if (nOverlays > 0) {

                    i = nOverlays - 1;
                    
                    do {

                        this.overlays[i].blur();                    
                    
                    }
                    while(i--);
                
                }
    
            };
        
        
            this._onOverlayBlur = function (p_sType, p_aArgs) {

                activeOverlay = null;

            };
        
        
            var overlays = this.cfg.getProperty("overlays");
        
            if (! this.overlays) {
                this.overlays = [];
            }
        
            if (overlays) {
                this.register(overlays);
                this.overlays.sort(this.compareZIndexDesc);
            }
        },
        
        
        /**
        * @method _onOverlayElementFocus
        * @description Event handler for the DOM event that is used to focus 
        * the Overlay instance as specified by the "focusevent" 
        * configuration property.
        * @private
        * @param {Event} p_oEvent Object representing the DOM event 
        * object passed back by the event utility (Event).
        */
        _onOverlayElementFocus: function (p_oEvent) {
        
            var oTarget = Event.getTarget(p_oEvent),
                oClose = this.close;
        
            
            if (oClose && (oTarget == oClose || 
                    Dom.isAncestor(oClose, oTarget))) {
            
                this.blur();
            
            }
            else {
            
                this.focus();
            
            }
        
        },
        
        
        /**
        * @method _onOverlayDestroy
        * @description "destroy" event handler for the Overlay.
        * @private
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        * @param {Overlay} p_oOverlay Object representing the menu that 
        * fired the event.
        */
        _onOverlayDestroy: function (p_sType, p_aArgs, p_oOverlay) {
        
            this.remove(p_oOverlay);
        
        },
        
        /**
        * Registers an Overlay or an array of Overlays with the manager. Upon 
        * registration, the Overlay receives functions for focus and blur, 
        * along with CustomEvents for each.
        * @method register
        * @param {Overlay} overlay  An Overlay to register with the manager.
        * @param {Overlay[]} overlay  An array of Overlays to register with 
        * the manager.
        * @return {Boolean} True if any Overlays are registered.
        */
        register: function (overlay) {
        
            var mgr = this,
                zIndex,
                regcount,
                i,
                nOverlays;
        
            if (overlay instanceof Overlay) {

                overlay.cfg.addProperty("manager", { value: this } );
        
                overlay.focusEvent = overlay.createEvent("focus");
                overlay.focusEvent.signature = CustomEvent.LIST;
        
                overlay.blurEvent = overlay.createEvent("blur");
                overlay.blurEvent.signature = CustomEvent.LIST;
        
                overlay.focus = function () {
                    mgr.focus(this);
                };
        
                overlay.blur = function () {
    
                    if (mgr.getActive() == this) {

                        Dom.removeClass(this.element, 
                            OverlayManager.CSS_FOCUSED);

                        this.blurEvent.fire();

                    }

                };
        
                overlay.blurEvent.subscribe(mgr._onOverlayBlur);
        
                overlay.hideEvent.subscribe(overlay.blur);
                
                overlay.destroyEvent.subscribe(this._onOverlayDestroy, 
                    overlay, this);
        
                Event.on(overlay.element, this.cfg.getProperty("focusevent"), 
                    this._onOverlayElementFocus, null, overlay);
        
                zIndex = Dom.getStyle(overlay.element, "zIndex");

                if (!isNaN(zIndex)) {

                    overlay.cfg.setProperty("zIndex", parseInt(zIndex, 10));

                } else {

                    overlay.cfg.setProperty("zIndex", 0);

                }
        

                this.overlays.push(overlay);

                this.bringToTop(overlay);

                return true;

            } else if (overlay instanceof Array) {

                regcount = 0;
                nOverlays = overlay.length;

                for (i = 0; i < nOverlays; i++) {

                    if (this.register(overlay[i])) {

                        regcount++;

                    }
                }

                if (regcount > 0) {

                    return true;

                }

            } else {

                return false;

            }

        },

        /**
        * Places the specified Overlay instance on top of all other 
        * Overlay instances.
        * @method bringToTop
        * @param {YAHOO.widget.Overlay} p_oOverlay Object representing an 
        * Overlay instance.
        * @param {String} p_oOverlay String representing the id of an 
        * Overlay instance.
        */        
        bringToTop: function (p_oOverlay) {

            var oOverlay = this.find(p_oOverlay),
                nTopZIndex,
                oTopOverlay,
                aOverlays;

            if (oOverlay) {

                aOverlays = this.overlays;

                aOverlays.sort(this.compareZIndexDesc);
                
                oTopOverlay = aOverlays[0];
                
                if (oTopOverlay) {

                    nTopZIndex = Dom.getStyle(oTopOverlay.element, "zIndex");
    
                    if (!isNaN(nTopZIndex) && oTopOverlay != oOverlay) {
    
                        oOverlay.cfg.setProperty("zIndex", 
                            (parseInt(nTopZIndex, 10) + 2));
    
                    }
    
                    aOverlays.sort(this.compareZIndexDesc);
                
                }

            }
        
        },
        
        /**
        * Attempts to locate an Overlay by instance or ID.
        * @method find
        * @param {Overlay} overlay  An Overlay to locate within the manager
        * @param {String} overlay  An Overlay id to locate within the manager
        * @return {Overlay} The requested Overlay, if found, or null if it 
        * cannot be located.
        */
        find: function (overlay) {
        
            var aOverlays = this.overlays,
                nOverlays = aOverlays.length,
                i;

            if (nOverlays > 0) {

                i = nOverlays - 1;

                if (overlay instanceof Overlay) {

                    do {

                        if (aOverlays[i] == overlay) {

                            return aOverlays[i];

                        }
                    
                    }
                    while(i--);

                } else if (typeof overlay == "string") {

                    do {

                        if (aOverlays[i].id == overlay) {

                            return aOverlays[i];

                        }

                    }
                    while(i--);

                }

                return null;
            
            }

        },
        
        /**
        * Used for sorting the manager's Overlays by z-index.
        * @method compareZIndexDesc
        * @private
        * @return {Number} 0, 1, or -1, depending on where the Overlay should 
        * fall in the stacking order.
        */
        compareZIndexDesc: function (o1, o2) {
    
            var zIndex1 = o1.cfg.getProperty("zIndex"),
                zIndex2 = o2.cfg.getProperty("zIndex");
        
            if (zIndex1 > zIndex2) {
                return -1;
            } else if (zIndex1 < zIndex2) {
                return 1;
            } else {
                return 0;
            }
        },
        
        /**
        * Shows all Overlays in the manager.
        * @method showAll
        */
        showAll: function () {
        
            var aOverlays = this.overlays,
                nOverlays = aOverlays.length,
                i;

            if (nOverlays > 0) {
            
                i = nOverlays - 1;
                
                do {

                    aOverlays[i].show();
                
                }
                while(i--);
            
            }
    
        },
        
        /**
        * Hides all Overlays in the manager.
        * @method hideAll
        */
        hideAll: function () {
        
            var aOverlays = this.overlays,
                nOverlays = aOverlays.length,
                i;

            if (nOverlays > 0) {
            
                i = nOverlays - 1;
                
                do {

                    aOverlays[i].hide();
                
                }
                while(i--);
            
            }
    
        },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the OverlayManager
        */
        toString: function () {
            return "OverlayManager";
        }
    
    };

}());
(function () {

    /**
    * Tooltip is an implementation of Overlay that behaves like an OS tooltip, 
    * displaying when the user mouses over a particular element, and 
    * disappearing on mouse out.
    * @namespace YAHOO.widget
    * @class Tooltip
    * @extends YAHOO.widget.Overlay
    * @constructor
    * @param {String} el The element ID representing the Tooltip <em>OR</em>
    * @param {HTMLElement} el The element representing the Tooltip
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Overlay. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Tooltip = function (el, userConfig) {
    
        YAHOO.widget.Tooltip.superclass.constructor.call(this, el, userConfig);
    
    };


    var Lang = YAHOO.lang,
        Event = YAHOO.util.Event,
        Dom = YAHOO.util.Dom,
        Tooltip = YAHOO.widget.Tooltip,
    
        m_oShadowTemplate;
        
        /**
        * Constant representing the Tooltip's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "PREVENT_OVERLAP": { 
                key: "preventoverlap", 
                value: true, 
                validator: Lang.isBoolean, 
                supercedes: ["x", "y", "xy"] 
            },
        
            "SHOW_DELAY": { 
                key: "showdelay", 
                value: 200, 
                validator: Lang.isNumber 
            }, 
        
            "AUTO_DISMISS_DELAY": { 
                key: "autodismissdelay", 
                value: 5000, 
                validator: Lang.isNumber 
            }, 
        
            "HIDE_DELAY": { 
                key: "hidedelay", 
                value: 250, 
                validator: Lang.isNumber 
            }, 
        
            "TEXT": { 
                key: "text", 
                suppressEvent: true 
            }, 
        
            "CONTAINER": { 
                key: "container"
            }
        
        };

    
    /**
    * Constant representing the Tooltip CSS class
    * @property Tooltip.CSS_TOOLTIP
    * @static
    * @final
    * @type String
    */
    Tooltip.CSS_TOOLTIP = "yui-tt";


    /* 
        "hide" event handler that sets a Tooltip instance's "width"
        configuration property back to its original value before 
        "setWidthToOffsetWidth" was called.
    */
    
    function restoreOriginalWidth(p_sType, p_aArgs, p_oObject) {

        var sOriginalWidth = p_oObject[0],
            sNewWidth = p_oObject[1],
            oConfig = this.cfg,
            sCurrentWidth = oConfig.getProperty("width");

        if (sCurrentWidth == sNewWidth) {
            
            oConfig.setProperty("width", sOriginalWidth);
        
        }

        this.unsubscribe("hide", this._onHide, p_oObject);
    
    }

    /* 
        "beforeShow" event handler that sets a Tooltip instance's "width"
        configuration property to the value of its root HTML 
        elements's offsetWidth
    */

    function setWidthToOffsetWidth(p_sType, p_aArgs) {

        var oBody = document.body,
            oConfig = this.cfg,
            sOriginalWidth = oConfig.getProperty("width"),
            sNewWidth,
            oClone;

        
        if ((!sOriginalWidth || sOriginalWidth == "auto") && 
            (oConfig.getProperty("container") != oBody || 
            oConfig.getProperty("x") >= Dom.getViewportWidth() || 
            oConfig.getProperty("y") >= Dom.getViewportHeight())) {

            oClone = this.element.cloneNode(true);
            oClone.style.visibility = "hidden";
            oClone.style.top = "0px";
            oClone.style.left = "0px";
            
            oBody.appendChild(oClone);

            sNewWidth = (oClone.offsetWidth + "px");
            
            oBody.removeChild(oClone);
            
            oClone = null;

            oConfig.setProperty("width", sNewWidth);
            
            oConfig.refireEvent("xy");
            
            this.subscribe("hide", restoreOriginalWidth, 
                [(sOriginalWidth || ""), sNewWidth]);
        
        }

    }


    // "onDOMReady" that renders the ToolTip

    function onDOMReady(p_sType, p_aArgs, p_oObject) {
    
        this.render(p_oObject);
    
    }


    //  "init" event handler that automatically renders the Tooltip

    function onInit() {

        Event.onDOMReady(onDOMReady, this.cfg.getProperty("container"), this);

    }

    
    YAHOO.extend(Tooltip, YAHOO.widget.Overlay, { 
    
        /**
        * The Tooltip initialization method. This method is automatically 
        * called by the constructor. A Tooltip is automatically rendered by 
        * the init method, and it also is set to be invisible by default, 
        * and constrained to viewport by default as well.
        * @method init
        * @param {String} el The element ID representing the Tooltip <em>OR</em>
        * @param {HTMLElement} el The element representing the Tooltip
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Tooltip. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {
    
    
            Tooltip.superclass.init.call(this, el);
    
            this.beforeInitEvent.fire(Tooltip);
    
            Dom.addClass(this.element, Tooltip.CSS_TOOLTIP);
    
            if (userConfig) {

                this.cfg.applyConfig(userConfig, true);

            }
    
            this.cfg.queueProperty("visible", false);
            this.cfg.queueProperty("constraintoviewport", true);
    
            this.setBody("");

            this.subscribe("beforeShow", setWidthToOffsetWidth);
            this.subscribe("init", onInit);
            this.subscribe("render", this.onRender);
    
            this.initEvent.fire(Tooltip);

        },
        
        /**
        * Initializes the class's configurable properties which can be 
        * changed using the Overlay's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {

            Tooltip.superclass.initDefaultConfig.call(this);
        
            /**
            * Specifies whether the Tooltip should be kept from overlapping 
            * its context element.
            * @config preventoverlap
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.PREVENT_OVERLAP.key, {
                value: DEFAULT_CONFIG.PREVENT_OVERLAP.value, 
                validator: DEFAULT_CONFIG.PREVENT_OVERLAP.validator, 
                supercedes: DEFAULT_CONFIG.PREVENT_OVERLAP.supercedes
            });
        
            /**
            * The number of milliseconds to wait before showing a Tooltip 
            * on mouseover.
            * @config showdelay
            * @type Number
            * @default 200
            */
            this.cfg.addProperty(DEFAULT_CONFIG.SHOW_DELAY.key, {
                handler: this.configShowDelay,
                value: 200, 
                validator: DEFAULT_CONFIG.SHOW_DELAY.validator
            });
        
            /**
            * The number of milliseconds to wait before automatically 
            * dismissing a Tooltip after the mouse has been resting on the 
            * context element.
            * @config autodismissdelay
            * @type Number
            * @default 5000
            */
            this.cfg.addProperty(DEFAULT_CONFIG.AUTO_DISMISS_DELAY.key, {
                handler: this.configAutoDismissDelay,
                value: DEFAULT_CONFIG.AUTO_DISMISS_DELAY.value,
                validator: DEFAULT_CONFIG.AUTO_DISMISS_DELAY.validator
            });
        
            /**
            * The number of milliseconds to wait before hiding a Tooltip 
            * on mouseover.
            * @config hidedelay
            * @type Number
            * @default 250
            */
            this.cfg.addProperty(DEFAULT_CONFIG.HIDE_DELAY.key, {
                handler: this.configHideDelay,
                value: DEFAULT_CONFIG.HIDE_DELAY.value, 
                validator: DEFAULT_CONFIG.HIDE_DELAY.validator
            });
        
            /**
            * Specifies the Tooltip's text.
            * @config text
            * @type String
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.TEXT.key, {
                handler: this.configText,
                suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent
            });

            /**
            * Specifies the container element that the Tooltip's markup 
            * should be rendered into.
            * @config container
            * @type HTMLElement/String
            * @default document.body
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CONTAINER.key, {
                handler: this.configContainer,
                value: document.body
            });
        
            /**
            * Specifies the element or elements that the Tooltip should be 
            * anchored to on mouseover.
            * @config context
            * @type HTMLElement[]/String[]
            * @default null
            */ 

            /**
            * String representing the width of the Tooltip.  <em>Please note:
            * </em> As of version 2.3 if either no value or a value of "auto" 
            * is specified, and the Toolip's "container" configuration property
            * is set to something other than <code>document.body</code> or 
            * its "context" element resides outside the immediately visible 
            * portion of the document, the width of the Tooltip will be 
            * calculated based on the offsetWidth of its root HTML and set just 
            * before it is made visible.  The original value will be 
            * restored when the Tooltip is hidden. This ensures the Tooltip is 
            * rendered at a usable width.  For more information see 
            * SourceForge bug #1685496 and SourceForge 
            * bug #1735423.
            * @config width
            * @type String
            * @default null
            */
        
        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "text" property is changed.
        * @method configText
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configText: function (type, args, obj) {
            var text = args[0];
            if (text) {
                this.setBody(text);
            }
        },
        
        /**
        * The default event handler fired when the "container" property 
        * is changed.
        * @method configContainer
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers,
        * this will usually equal the owner.
        */
        configContainer: function (type, args, obj) {

            var container = args[0];

            if (typeof container == 'string') {

                this.cfg.setProperty("container", 
                    document.getElementById(container), true);

            }

        },
        
        /**
        * @method _removeEventListeners
        * @description Removes all of the DOM event handlers from the HTML
        *  element(s) that trigger the display of the tooltip.
        * @protected
        */
        _removeEventListeners: function () {
        
            var aElements = this._context,
                nElements,
                oElement,
                i;
        
            
            if (aElements) {
        
                nElements = aElements.length;
                
                if (nElements > 0) {
                
                    i = nElements - 1;
                    
                    do {
        
                        oElement = aElements[i];
        
                        Event.removeListener(oElement, "mouseover", 
                            this.onContextMouseOver);

                        Event.removeListener(oElement, "mousemove", 
                            this.onContextMouseMove);

                        Event.removeListener(oElement, "mouseout", 
                            this.onContextMouseOut);
                    
                    }
                    while (i--);
                
                }
        
            }
        
        },
        
        /**
        * The default event handler fired when the "context" property 
        * is changed.
        * @method configContext
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers,
        * this will usually equal the owner.
        */
        configContext: function (type, args, obj) {
        
            var context = args[0],
                aElements,
                nElements,
                oElement,
                i;
            
        
            if (context) {
        
                // Normalize parameter into an array
                if (! (context instanceof Array)) {

                    if (typeof context == "string") {

                        this.cfg.setProperty("context", 
                            [document.getElementById(context)], true);

                    } else { // Assuming this is an element

                        this.cfg.setProperty("context", [context], true);

                    }

                    context = this.cfg.getProperty("context");

                }
        
        
                // Remove any existing mouseover/mouseout listeners
                this._removeEventListeners();
        
                // Add mouseover/mouseout listeners to context elements
                this._context = context;
        
                aElements = this._context;
                
                if (aElements) {
            
                    nElements = aElements.length;
                    
                    if (nElements > 0) {
                    
                        i = nElements - 1;
                        
                        do {
            
                            oElement = aElements[i];
            
                            Event.on(oElement, "mouseover", 
                                this.onContextMouseOver, this);

                            Event.on(oElement, "mousemove", 
                                this.onContextMouseMove, this);

                            Event.on(oElement, "mouseout", 
                                this.onContextMouseOut, this);
                        
                        }
                        while (i--);
                    
                    }
            
                }
        
            }
        },
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        // BEGIN BUILT-IN DOM EVENT HANDLERS //
        
        /**
        * The default event handler fired when the user moves the mouse while 
        * over the context element.
        * @method onContextMouseMove
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseMove: function (e, obj) {
            obj.pageX = Event.getPageX(e);
            obj.pageY = Event.getPageY(e);
        
        },
        
        /**
        * The default event handler fired when the user mouses over the 
        * context element.
        * @method onContextMouseOver
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseOver: function (e, obj) {
        
            var context = this;
        
            if (obj.hideProcId) {

                clearTimeout(obj.hideProcId);


                obj.hideProcId = null;

            }
        
            Event.on(context, "mousemove", obj.onContextMouseMove, obj);
        
            if (context.title) {
                obj._tempTitle = context.title;
                context.title = "";
            }
        
            /**
            * The unique process ID associated with the thread responsible 
            * for showing the Tooltip.
            * @type int
            */
            obj.showProcId = obj.doShow(e, context);

        },
        
        /**
        * The default event handler fired when the user mouses out of 
        * the context element.
        * @method onContextMouseOut
        * @param {DOMEvent} e The current DOM event
        * @param {Object} obj The object argument
        */
        onContextMouseOut: function (e, obj) {
            var el = this;
        
            if (obj._tempTitle) {
                el.title = obj._tempTitle;
                obj._tempTitle = null;
            }
        
            if (obj.showProcId) {
                clearTimeout(obj.showProcId);
                obj.showProcId = null;
            }
        
            if (obj.hideProcId) {
                clearTimeout(obj.hideProcId);
                obj.hideProcId = null;
            }
        
        
            obj.hideProcId = setTimeout(function () {
                obj.hide();
    
            }, obj.cfg.getProperty("hidedelay"));
    
        },
        
        // END BUILT-IN DOM EVENT HANDLERS //
        
        /**
        * Processes the showing of the Tooltip by setting the timeout delay 
        * and offset of the Tooltip.
        * @method doShow
        * @param {DOMEvent} e The current DOM event
        * @return {Number} The process ID of the timeout function associated 
        * with doShow
        */
        doShow: function (e, context) {
        
            var yOffset = 25,
                me = this;
        
            if (YAHOO.env.ua.opera && context.tagName && 
                context.tagName.toUpperCase() == "A") {

                yOffset += 12;

            }
        
            return setTimeout(function () {
        
                if (me._tempTitle) {
                    me.setBody(me._tempTitle);
                } else {
                    me.cfg.refireEvent("text");
                }
        
                me.moveTo(me.pageX, me.pageY + yOffset);

                if (me.cfg.getProperty("preventoverlap")) {
                    me.preventOverlap(me.pageX, me.pageY);
                }
        
                Event.removeListener(context, "mousemove", 
                    me.onContextMouseMove);
        
                me.show();
                me.hideProcId = me.doHide();


            }, this.cfg.getProperty("showdelay"));
        
        },
        
        /**
        * Sets the timeout for the auto-dismiss delay, which by default is 5 
        * seconds, meaning that a tooltip will automatically dismiss itself 
        * after 5 seconds of being displayed.
        * @method doHide
        */
        doHide: function () {
        
            var me = this;
        
        
            return setTimeout(function () {
        
                me.hide();
        
            }, this.cfg.getProperty("autodismissdelay"));
        
        },
        
        /**
        * Fired when the Tooltip is moved, this event handler is used to 
        * prevent the Tooltip from overlapping with its context element.
        * @method preventOverlay
        * @param {Number} pageX The x coordinate position of the mouse pointer
        * @param {Number} pageY The y coordinate position of the mouse pointer
        */
        preventOverlap: function (pageX, pageY) {
        
            var height = this.element.offsetHeight,
                mousePoint = new YAHOO.util.Point(pageX, pageY),
                elementRegion = Dom.getRegion(this.element);
        
            elementRegion.top -= 5;
            elementRegion.left -= 5;
            elementRegion.right += 5;
            elementRegion.bottom += 5;
        
        
            if (elementRegion.contains(mousePoint)) {
                this.cfg.setProperty("y", (pageY - height - 5));
            }
        },


        /**
        * @method onRender
        * @description "render" event handler for the Tooltip.
        * @param {String} p_sType String representing the name of the event  
        * that was fired.
        * @param {Array} p_aArgs Array of arguments sent when the event 
        * was fired.
        */
        onRender: function (p_sType, p_aArgs) {
    
            function sizeShadow() {
    
                var oElement = this.element,
                    oShadow = this._shadow;
            
                if (oShadow) {
            
                    oShadow.style.width = (oElement.offsetWidth + 6) + "px";
                    oShadow.style.height = (oElement.offsetHeight + 1) + "px"; 
            
                }
            
            }


            function addShadowVisibleClass() {
            
                Dom.addClass(this._shadow, "yui-tt-shadow-visible");
            
            }
            

            function removeShadowVisibleClass() {
        
                Dom.removeClass(this._shadow, "yui-tt-shadow-visible");
            
            }
    
    
            function createShadow() {
    
                var oShadow = this._shadow,
                    oElement,
                    Module,
                    nIE,
                    me;
    
                if (!oShadow) {
    
                    oElement = this.element;
                    Module = YAHOO.widget.Module;
                    nIE = YAHOO.env.ua.ie;
                    me = this;
    
                    if (!m_oShadowTemplate) {
        
                        m_oShadowTemplate = document.createElement("div");
                        m_oShadowTemplate.className = "yui-tt-shadow";
                    
                    }
        
                    oShadow = m_oShadowTemplate.cloneNode(false);
        
                    oElement.appendChild(oShadow);
                    
                    this._shadow = oShadow;
    
                    addShadowVisibleClass.call(this);
        
                    this.subscribe("beforeShow", addShadowVisibleClass);
                    this.subscribe("beforeHide", removeShadowVisibleClass);
        
                    this.subscribe("destroy", function () {
                    
                        this.unsubscribe("beforeShow",addShadowVisibleClass);
                        this.unsubscribe("beforeHide", 
                                            removeShadowVisibleClass);
                    
                    });


                    if (nIE == 6 || 
                        (nIE == 7 && document.compatMode == "BackCompat")) {
                
                        window.setTimeout(function () { 
        
                            sizeShadow.call(me); 
        
                        }, 0);
    
                        this.cfg.subscribeToConfigEvent("width", sizeShadow);
                        this.cfg.subscribeToConfigEvent("height", sizeShadow);
    
                        Module.textResizeEvent.subscribe(sizeShadow, 
                                                            this, true);
                        
                        this.subscribe("destroy", function () {
                        
                            Module.textResizeEvent.unsubscribe(sizeShadow, 
                                                                    this);
                        
                        });
                
                    }
                
                }
    
            }
    
    
            function onBeforeShow() {
            
                createShadow.call(this);
    
                this.unsubscribe("beforeShow", onBeforeShow);
            
            }
    
    
            if (this.cfg.getProperty("visible")) {
    
                createShadow.call(this);
            
            }
            else {
    
                this.subscribe("beforeShow", onBeforeShow);
            
            }
        
        },
        
        /**
        * Removes the Tooltip element from the DOM and sets all child 
        * elements to null.
        * @method destroy
        */
        destroy: function () {
        
            // Remove any existing mouseover/mouseout listeners
            this._removeEventListeners();
        
            Tooltip.superclass.destroy.call(this);  
        
        },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the Tooltip
        */
        toString: function () {
            return "Tooltip " + this.id;
        }
    
    });

}());
(function () {

    /**
    * Panel is an implementation of Overlay that behaves like an OS window, 
    * with a draggable header and an optional close icon at the top right.
    * @namespace YAHOO.widget
    * @class Panel
    * @extends Overlay
    * @constructor
    * @param {String} el The element ID representing the Panel <em>OR</em>
    * @param {HTMLElement} el The element representing the Panel
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Panel. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Panel = function (el, userConfig) {
    
        YAHOO.widget.Panel.superclass.constructor.call(this, el, userConfig);
    
    };


    var Lang = YAHOO.lang,
        DD = YAHOO.util.DD,
        Dom = YAHOO.util.Dom,
        Event = YAHOO.util.Event,
        Overlay = YAHOO.widget.Overlay,
        CustomEvent = YAHOO.util.CustomEvent,
        Config = YAHOO.util.Config,
        Panel = YAHOO.widget.Panel,

        m_oMaskTemplate,
        m_oUnderlayTemplate,
        m_oCloseIconTemplate,

        /**
        * Constant representing the name of the Panel's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
        
            "SHOW_MASK": "showMask",
            "HIDE_MASK": "hideMask",
            "DRAG": "drag"
        
        },
        
        /**
        * Constant representing the Panel's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "CLOSE": { 
                key: "close", 
                value: true, 
                validator: Lang.isBoolean, 
                supercedes: ["visible"] 
            },
            
            "DRAGGABLE": { 
                key: "draggable", 
                value: (DD ? true : false), 
                validator: Lang.isBoolean, 
                supercedes: ["visible"]  
            },
            
            "UNDERLAY": { 
                key: "underlay", 
                value: "shadow", 
                supercedes: ["visible"] 
            },
            
            "MODAL": { 
                key: "modal", 
                value: false, 
                validator: Lang.isBoolean, 
                supercedes: ["visible"] 
            },
            
            "KEY_LISTENERS": { 
                key: "keylisteners", 
                suppressEvent: true, 
                supercedes: ["visible"] 
            }
        
        };


    /**
    * Constant representing the default CSS class used for a Panel
    * @property Panel.CSS_PANEL
    * @static
    * @final
    * @type String
    */
    Panel.CSS_PANEL = "yui-panel";
    
    /**
    * Constant representing the default CSS class used for a Panel's 
    * wrapping container
    * @property Panel.CSS_PANEL_CONTAINER
    * @static
    * @final
    * @type String
    */
    Panel.CSS_PANEL_CONTAINER = "yui-panel-container";


    // Private CustomEvent listeners

    /* 
        "beforeRender" event handler that creates an empty header for a Panel 
        instance if its "draggable" configuration property is set to "true" 
        and no header has been created.
    */

    function createHeader(p_sType, p_aArgs) {

        if (!this.header) {

            this.setHeader("&#160;");

        }

    }


    /* 
        "hide" event handler that sets a Panel instance's "width"
        configuration property back to its original value before 
        "setWidthToOffsetWidth" was called.
    */
    
    function restoreOriginalWidth(p_sType, p_aArgs, p_oObject) {

        var sOriginalWidth = p_oObject[0],
            sNewWidth = p_oObject[1],
            oConfig = this.cfg,
            sCurrentWidth = oConfig.getProperty("width");

        if (sCurrentWidth == sNewWidth) {
            
            oConfig.setProperty("width", sOriginalWidth);
        
        }

        this.unsubscribe("hide", this._onHide, p_oObject);
    
    }


    /* 
        "beforeShow" event handler that sets a Panel instance's "width"
        configuration property to the value of its root HTML 
        elements's offsetWidth
    */

    function setWidthToOffsetWidth(p_sType, p_aArgs) {

        var nIE = YAHOO.env.ua.ie,
            oConfig,
            sOriginalWidth,
            sNewWidth;

        if (nIE == 6 || (nIE == 7 && document.compatMode == "BackCompat")) {

            oConfig = this.cfg;
            sOriginalWidth = oConfig.getProperty("width");
            
            if (!sOriginalWidth || sOriginalWidth == "auto") {
    
                sNewWidth = (this.element.offsetWidth + "px");
    
                oConfig.setProperty("width", sNewWidth);
                
                this.subscribe("hide", restoreOriginalWidth, 
                    [(sOriginalWidth || ""), sNewWidth]);
            
            }
        
        }

    }

    /* 
        "focus" event handler for a focuable element.  Used to automatically 
        blur the element when it receives focus to ensure that a Panel 
        instance's modality is not compromised.
    */

    function onElementFocus() {

        this.blur();

    }

    /* 
        "showMask" event handler that adds a "focus" event handler to all
        focusable elements in the document to enforce a Panel instance's 
        modality from being compromised.
    */

    function addFocusEventHandlers(p_sType, p_aArgs) {

        var me = this;

        function isFocusable(el) {

            var sTagName = el.tagName.toUpperCase(),
                bFocusable = false;
            
            switch (sTagName) {
            
            case "A":
            case "BUTTON":
            case "SELECT":
            case "TEXTAREA":

                if (!Dom.isAncestor(me.element, el)) {
                    Event.on(el, "focus", onElementFocus, el, true);
                    bFocusable = true;
                }

                break;

            case "INPUT":

                if (el.type != "hidden" && 
                    !Dom.isAncestor(me.element, el)) {

                    Event.on(el, "focus", onElementFocus, el, true);
                    bFocusable = true;

                }

                break;
            
            }

            return bFocusable;

        }

        this.focusableElements = Dom.getElementsBy(isFocusable);
    
    }

    /* 
        "hideMask" event handler that removes all "focus" event handlers added 
        by the "addFocusEventHandlers" method.
    */
    
    function removeFocusEventHandlers(p_sType, p_aArgs) {

        var aElements = this.focusableElements,
            nElements = aElements.length,
            el2,
            i;

        for (i = 0; i < nElements; i++) {
            el2 = aElements[i];
            Event.removeListener(el2, "focus", onElementFocus);
        }

    }

    
    YAHOO.extend(Panel, Overlay, {
    
        /**
        * The Overlay initialization method, which is executed for Overlay and 
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * @method init
        * @param {String} el The element ID representing the Overlay <em>OR</em>
        * @param {HTMLElement} el The element representing the Overlay
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Overlay. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {
    
            /*
                 Note that we don't pass the user config in here yet because 
                 we only want it executed once, at the lowest subclass level
            */

            Panel.superclass.init.call(this, el/*, userConfig*/);  
        
            this.beforeInitEvent.fire(Panel);
        
            Dom.addClass(this.element, Panel.CSS_PANEL);
        
            this.buildWrapper();
        
            if (userConfig) {

                this.cfg.applyConfig(userConfig, true);

            }
        
            this.subscribe("showMask", addFocusEventHandlers);
            this.subscribe("hideMask", removeFocusEventHandlers);

            this.initEvent.fire(Panel);
            
        },
        
        /**
        * Initializes the custom events for Module which are fired 
        * automatically at appropriate times by the Module class.
        */
        initEvents: function () {
            Panel.superclass.initEvents.call(this);
        
            var SIGNATURE = CustomEvent.LIST;
        
            /**
            * CustomEvent fired after the modality mask is shown
            * @event showMaskEvent
            */
            this.showMaskEvent = this.createEvent(EVENT_TYPES.SHOW_MASK);
            this.showMaskEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after the modality mask is hidden
            * @event hideMaskEvent
            */
            this.hideMaskEvent = this.createEvent(EVENT_TYPES.HIDE_MASK);
            this.hideMaskEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent when the Panel is dragged
            * @event dragEvent
            */
            this.dragEvent = this.createEvent(EVENT_TYPES.DRAG);
            this.dragEvent.signature = SIGNATURE;
        
        },
        
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the Panel's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
            Panel.superclass.initDefaultConfig.call(this);
        
            // Add panel config properties //
        
            /**
            * True if the Panel should display a "close" button
            * @config close
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.CLOSE.key, { 
                handler: this.configClose, 
                value: DEFAULT_CONFIG.CLOSE.value, 
                validator: DEFAULT_CONFIG.CLOSE.validator, 
                supercedes: DEFAULT_CONFIG.CLOSE.supercedes 
            });
        
            /**
            * Boolean specifying if the Panel should be draggable.  The default 
            * value is "true" if the Drag and Drop utility is included, 
            * otherwise it is "false." <strong>PLEASE NOTE:</strong> There is a 
            * known issue in IE 6 (Strict Mode and Quirks Mode) and IE 7 
            * (Quirks Mode) where Panels that either don't have a value set for 
            * their "width" configuration property, or their "width" 
            * configuration property is set to "auto" will only be draggable by
            * placing the mouse on the text of the Panel's header element.
            * To fix this bug, draggable Panels missing a value for their 
            * "width" configuration property, or whose "width" configuration 
            * property is set to "auto" will have it set to the value of 
            * their root HTML element's offsetWidth before they are made 
            * visible.  The calculated width is then removed when the Panel is   
            * hidden. <em>This fix is only applied to draggable Panels in IE 6 
            * (Strict Mode and Quirks Mode) and IE 7 (Quirks Mode)</em>. For 
            * more information on this issue see:
            * SourceForge bugs #1726972 and #1589210.
            * @config draggable
            * @type Boolean
            * @default true
            */
            this.cfg.addProperty(DEFAULT_CONFIG.DRAGGABLE.key, { 
                handler: this.configDraggable, 
                value: DEFAULT_CONFIG.DRAGGABLE.value, 
                validator: DEFAULT_CONFIG.DRAGGABLE.validator, 
                supercedes: DEFAULT_CONFIG.DRAGGABLE.supercedes 
            });
        
            /**
            * Sets the type of underlay to display for the Panel. Valid values 
            * are "shadow", "matte", and "none".
            * @config underlay
            * @type String
            * @default shadow
            */
            this.cfg.addProperty(DEFAULT_CONFIG.UNDERLAY.key, { 
                handler: this.configUnderlay, 
                value: DEFAULT_CONFIG.UNDERLAY.value, 
                supercedes: DEFAULT_CONFIG.UNDERLAY.supercedes 
            });
        
            /**
            * True if the Panel should be displayed in a modal fashion, 
            * automatically creating a transparent mask over the document that
            * will not be removed until the Panel is dismissed.
            * @config modal
            * @type Boolean
            * @default false
            */
            this.cfg.addProperty(DEFAULT_CONFIG.MODAL.key, { 
                handler: this.configModal, 
                value: DEFAULT_CONFIG.MODAL.value,
                validator: DEFAULT_CONFIG.MODAL.validator, 
                supercedes: DEFAULT_CONFIG.MODAL.supercedes 
            });
        
            /**
            * A KeyListener (or array of KeyListeners) that will be enabled 
            * when the Panel is shown, and disabled when the Panel is hidden.
            * @config keylisteners
            * @type YAHOO.util.KeyListener[]
            * @default null
            */
            this.cfg.addProperty(DEFAULT_CONFIG.KEY_LISTENERS.key, { 
                handler: this.configKeyListeners, 
                suppressEvent: DEFAULT_CONFIG.KEY_LISTENERS.suppressEvent, 
                supercedes: DEFAULT_CONFIG.KEY_LISTENERS.supercedes 
            });
        
        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "close" property is changed.
        * The method controls the appending or hiding of the close icon at the 
        * top right of the Panel.
        * @method configClose
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configClose: function (type, args, obj) {

            var val = args[0],
                oClose = this.close;
        
            function doHide(e, obj) {

                obj.hide();

            }
        
            if (val) {

                if (!oClose) {

                    if (!m_oCloseIconTemplate) {

                        m_oCloseIconTemplate = document.createElement("span");
                        m_oCloseIconTemplate.innerHTML = "&#160;";
                        m_oCloseIconTemplate.className = "container-close";

                    }

                    oClose = m_oCloseIconTemplate.cloneNode(true);

                    this.innerElement.appendChild(oClose);

                    Event.on(oClose, "click", doHide, this);
                    
                    this.close = oClose;
                    

                } else {

                    oClose.style.display = "block";

                }

            } else {

                if (oClose) {

                    oClose.style.display = "none";

                }

            }

        },



        /**
        * The default event handler fired when the "draggable" property 
        * is changed.
        * @method configDraggable
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configDraggable: function (type, args, obj) {
        
            var val = args[0];

            if (val) {
        
                if (!DD) {
            
        
                    this.cfg.setProperty("draggable", false);
            
                    return;
                
                }
        
                if (this.header) {

                    Dom.setStyle(this.header, "cursor", "move");

                    this.registerDragDrop();

                }

                this.subscribe("beforeRender", createHeader);
                this.subscribe("beforeShow", setWidthToOffsetWidth);

            } else {

                if (this.dd) {

                    this.dd.unreg();

                }

                if (this.header) {

                    Dom.setStyle(this.header,"cursor","auto");

                }

                this.unsubscribe("beforeRender", createHeader);
                this.unsubscribe("beforeShow", setWidthToOffsetWidth);

            }

        },
        
        /**
        * The default event handler fired when the "underlay" property 
        * is changed.
        * @method configUnderlay
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configUnderlay: function (type, args, obj) {
    
            var sUnderlay = args[0].toLowerCase(),
                oUnderlay = this.underlay;
                oElement = this.element;

            function createUnderlay() {

                var oUnderlay = this.underlay,
                    nIE;

                if (!oUnderlay) { // create if not already in DOM

                    if (!m_oUnderlayTemplate) {

                        m_oUnderlayTemplate = document.createElement("div");
                        m_oUnderlayTemplate.className = "underlay";
                    
                    }

                    oUnderlay = m_oUnderlayTemplate.cloneNode(false);
                    this.element.appendChild(oUnderlay);
                    
                    this.underlay = oUnderlay;

                    nIE = YAHOO.env.ua.ie;

                    if (nIE == 6 || 
                        (nIE == 7 && document.compatMode == "BackCompat")) {

                        this.cfg.subscribeToConfigEvent("width", this.sizeUnderlay);
                        this.cfg.subscribeToConfigEvent("height", this.sizeUnderlay);

                        YAHOO.widget.Module.textResizeEvent.subscribe(
                            this.sizeUnderlay, this, true);

                        this.sizeUnderlay();
                    
                    }

                }

            }

            function onBeforeShow() {
            
                createUnderlay.call(this);
    
                this.beforeShowEvent.unsubscribe(onBeforeShow);
            
            }
        

            switch (sUnderlay) {
    
            case "shadow":

                Dom.removeClass(oElement, "matte");
                Dom.addClass(oElement, "shadow");

                break;

            case "matte":

                Dom.removeClass(oElement, "shadow");
                Dom.addClass(oElement, "matte");

                break;

            default:

                Dom.removeClass(oElement, "shadow");
                Dom.removeClass(oElement, "matte");

                break;

            }


            if (sUnderlay == "shadow" || 
                ((this.platform == "mac" && YAHOO.env.ua.gecko) && 
                !oUnderlay)) {
                
                if (this.cfg.getProperty("visible")) {
                
                    createUnderlay.call(this);                    
                
                }
                else {

                    this.beforeShowEvent.subscribe(onBeforeShow);                
                
                }

            }
    
        },
        
        /**
        * The default event handler fired when the "modal" property is 
        * changed. This handler subscribes or unsubscribes to the show and hide
        * events to handle the display or hide of the modality mask.
        * @method configModal
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configModal: function (type, args, obj) {

            var modal = args[0];

            if (modal) {

                if (!this._hasModalityEventListeners) {

                    this.subscribe("beforeShow", this.buildMask);
                    this.subscribe("beforeShow", this.bringToTop);
                    this.subscribe("beforeShow", this.showMask);
                    this.subscribe("hide", this.hideMask);

                    Overlay.windowResizeEvent.subscribe(this.sizeMask, 
                        this, true);

                    this._hasModalityEventListeners = true;

                }

            } else {

                if (this._hasModalityEventListeners) {

                    if (this.cfg.getProperty("visible")) {
                    
                        this.hideMask();
                        this.removeMask();
                    
                    }

                    this.unsubscribe("beforeShow", this.buildMask);
                    this.unsubscribe("beforeShow", this.bringToTop);
                    this.unsubscribe("beforeShow", this.showMask);
                    this.unsubscribe("hide", this.hideMask);

                    Overlay.windowResizeEvent.unsubscribe(this.sizeMask, this);
                    
                    this._hasModalityEventListeners = false;
                
                }

            }

        },
        
        /**
        * Removes the modality mask.
        * @method removeMask
        */
        removeMask: function () {
        
            var oMask = this.mask,
                oParentNode;
        
            if (oMask) {
            
                /*
                    Hide the mask before destroying it to ensure that DOM
                    event handlers on focusable elements get removed.
                */
        
                this.hideMask();
            
                oParentNode = oMask.parentNode;
        
                if (oParentNode) {
        
                    oParentNode.removeChild(oMask);
        
                }
        
                this.mask = null;
            }
            
        },
        
        /**
        * The default event handler fired when the "keylisteners" property 
        * is changed.
        * @method configKeyListeners
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configKeyListeners: function (type, args, obj) {

            var listeners = args[0],
                listener,
                nListeners,
                i;
        
            if (listeners) {

                if (listeners instanceof Array) {

                    nListeners = listeners.length;

                    for (i = 0; i < nListeners; i++) {

                        listener = listeners[i];
        
                        if (!Config.alreadySubscribed(this.showEvent, 
                            listener.enable, listener)) {

                            this.showEvent.subscribe(listener.enable, 
                                listener, true);

                        }

                        if (!Config.alreadySubscribed(this.hideEvent, 
                            listener.disable, listener)) {

                            this.hideEvent.subscribe(listener.disable, 
                                listener, true);

                            this.destroyEvent.subscribe(listener.disable, 
                                listener, true);
                        }

                    }

                } else {

                    if (!Config.alreadySubscribed(this.showEvent, 
                        listeners.enable, listeners)) {

                        this.showEvent.subscribe(listeners.enable, 
                            listeners, true);
                    }

                    if (!Config.alreadySubscribed(this.hideEvent, 
                        listeners.disable, listeners)) {

                        this.hideEvent.subscribe(listeners.disable, 
                            listeners, true);

                        this.destroyEvent.subscribe(listeners.disable, 
                            listeners, true);

                    }

                }

            }

        },
        
        /**
        * The default event handler fired when the "height" property is changed.
        * @method configHeight
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configHeight: function (type, args, obj) {
    
            var height = args[0],
                el = this.innerElement;
    
            Dom.setStyle(el, "height", height);
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * The default event handler fired when the "width" property is changed.
        * @method configWidth
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configWidth: function (type, args, obj) {
    
            var width = args[0],
                el = this.innerElement;
    
            Dom.setStyle(el, "width", width);
            this.cfg.refireEvent("iframe");
    
        },
        
        /**
        * The default event handler fired when the "zIndex" property is changed.
        * @method configzIndex
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configzIndex: function (type, args, obj) {
    
            Panel.superclass.configzIndex.call(this, type, args, obj);
        
            var maskZ = 0,
                currentZ = Dom.getStyle(this.element, "zIndex");
        
            if (this.mask) {

                if (!currentZ || isNaN(currentZ)) {
                    currentZ = 0;
                }
        
                if (currentZ === 0) {

                    this.cfg.setProperty("zIndex", 1);

                } else {

                    maskZ = currentZ - 1;
                    Dom.setStyle(this.mask, "zIndex", maskZ);

                }
        
            }
        },
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        
        /**
        * Builds the wrapping container around the Panel that is used for 
        * positioning the shadow and matte underlays. The container element is 
        * assigned to a  local instance variable called container, and the 
        * element is reinserted inside of it.
        * @method buildWrapper
        */
        buildWrapper: function () {
    
            var elementParent = this.element.parentNode,
                originalElement = this.element,
                wrapper = document.createElement("div");
    
            wrapper.className = Panel.CSS_PANEL_CONTAINER;
            wrapper.id = originalElement.id + "_c";
        
            if (elementParent) {
                elementParent.insertBefore(wrapper, originalElement);
            }
        
            wrapper.appendChild(originalElement);
        
            this.element = wrapper;
            this.innerElement = originalElement;
        
            Dom.setStyle(this.innerElement, "visibility", "inherit");
        },
        
        /**
        * Adjusts the size of the shadow based on the size of the element.
        * @method sizeUnderlay
        */
        sizeUnderlay: function () {

            var oUnderlay = this.underlay,
                oElement;

            if (oUnderlay) {

                oElement = this.innerElement;

                oUnderlay.style.width = oElement.offsetWidth + "px";
                oUnderlay.style.height = oElement.offsetHeight + "px";

            }

        },

        
        /**
        * Registers the Panel's header for drag & drop capability.
        * @method registerDragDrop
        */
        registerDragDrop: function () {
    
            var me = this;
    
            if (this.header) {
        
                if (!DD) {
        
        
                    return;
                
                }
        
                this.dd = new DD(this.element.id, this.id);
        
                if (!this.header.id) {
                    this.header.id = this.id + "_h";
                }
        
    
                this.dd.startDrag = function () {
        
                    var offsetHeight,
                        offsetWidth,
                        viewPortWidth,
                        viewPortHeight,
                        scrollX,
                        scrollY,
                        topConstraint,
                        leftConstraint,
                        bottomConstraint,
                        rightConstraint;
    
                    if (YAHOO.env.ua.ie == 6) {
                        Dom.addClass(me.element,"drag");
                    }
        
                    if (me.cfg.getProperty("constraintoviewport")) {
    
                        offsetHeight = me.element.offsetHeight;
                        offsetWidth = me.element.offsetWidth;
                        
                        viewPortWidth = Dom.getViewportWidth();
                        viewPortHeight = Dom.getViewportHeight();
                        
                        scrollX = Dom.getDocumentScrollLeft();
                        scrollY = Dom.getDocumentScrollTop();
                        
                        topConstraint = scrollY + 10;
                        leftConstraint = scrollX + 10;

                        bottomConstraint = 
                            scrollY + viewPortHeight - offsetHeight - 10;

                        rightConstraint = 
                            scrollX + viewPortWidth - offsetWidth - 10;
        
                        this.minX = leftConstraint;
                        this.maxX = rightConstraint;
                        this.constrainX = true;
        
                        this.minY = topConstraint;
                        this.maxY = bottomConstraint;
                        this.constrainY = true;
    
                    } else {
    
                        this.constrainX = false;
                        this.constrainY = false;
    
                    }
        
                    me.dragEvent.fire("startDrag", arguments);
                };
        
                this.dd.onDrag = function () {
                    me.syncPosition();
                    me.cfg.refireEvent("iframe");
                    if (this.platform == "mac" && YAHOO.env.ua.gecko) {
                        this.showMacGeckoScrollbars();
                    }
        
                    me.dragEvent.fire("onDrag", arguments);
                };
        
                this.dd.endDrag = function () {

                    if (YAHOO.env.ua.ie == 6) {
                        Dom.removeClass(me.element,"drag");
                    }
        
                    me.dragEvent.fire("endDrag", arguments);
                    me.moveEvent.fire(me.cfg.getProperty("xy"));
                    
                };
        
                this.dd.setHandleElId(this.header.id);
                this.dd.addInvalidHandleType("INPUT");
                this.dd.addInvalidHandleType("SELECT");
                this.dd.addInvalidHandleType("TEXTAREA");
            }
        },
        
        /**
        * Builds the mask that is laid over the document when the Panel is 
        * configured to be modal.
        * @method buildMask
        */
        buildMask: function () {
    
            var oMask = this.mask;
    
            if (!oMask) {

                if (!m_oMaskTemplate) {
                
                    m_oMaskTemplate = document.createElement("div");
                    m_oMaskTemplate.className = "mask";
                    m_oMaskTemplate.innerHTML = "&#160;";
                
                }

                oMask = m_oMaskTemplate.cloneNode(true);
                oMask.id = this.id + "_mask";

                document.body.insertBefore(oMask, document.body.firstChild);
                
                this.mask = oMask;

            }

        },
        
        /**
        * Hides the modality mask.
        * @method hideMask
        */
        hideMask: function () {
            if (this.cfg.getProperty("modal") && this.mask) {
                this.mask.style.display = "none";
                this.hideMaskEvent.fire();
                Dom.removeClass(document.body, "masked");
            }
        },
        
        /**
        * Shows the modality mask.
        * @method showMask
        */
        showMask: function () {
            if (this.cfg.getProperty("modal") && this.mask) {
                Dom.addClass(document.body, "masked");
                this.sizeMask();
                this.mask.style.display = "block";
                this.showMaskEvent.fire();
            }
        },
        
        /**
        * Sets the size of the modality mask to cover the entire scrollable 
        * area of the document
        * @method sizeMask
        */
        sizeMask: function () {

            if (this.mask) {

                this.mask.style.height = Dom.getDocumentHeight() + "px";
                this.mask.style.width = Dom.getDocumentWidth() + "px";

            }

        },

        
        /**
        * Renders the Panel by inserting the elements that are not already in 
        * the main Panel into their correct places. Optionally appends the 
        * Panel to the specified node prior to the render's execution. NOTE: 
        * For Panels without existing markup, the appendToNode argument is 
        * REQUIRED. If this argument is ommitted and the current element is 
        * not present in the document, the function will return false, 
        * indicating that the render was a failure.
        * @method render
        * @param {String} appendToNode The element id to which the Module 
        * should be appended to prior to rendering <em>OR</em>
        * @param {HTMLElement} appendToNode The element to which the Module 
        * should be appended to prior to rendering
        * @return {boolean} Success or failure of the render
        */
        render: function (appendToNode) {

            return Panel.superclass.render.call(this, 
                appendToNode, this.innerElement);

        },
        
        /**
        * Removes the Panel element from the DOM and sets all child elements
        * to null.
        * @method destroy
        */
        destroy: function () {
        
            Overlay.windowResizeEvent.unsubscribe(this.sizeMask, this);
            
            this.removeMask();
        
            if (this.close) {
            
                Event.purgeElement(this.close);
        
            }
        
            Panel.superclass.destroy.call(this);  
        
        },
        
        /**
        * Returns a String representation of the object.
        * @method toString
        * @return {String} The string representation of the Panel.
        */
        toString: function () {
            return "Panel " + this.id;
        }
    
    });

}());
(function () {

    /**
    * Dialog is an implementation of Panel that can be used to submit form 
    * data. Built-in functionality for buttons with event handlers is included, 
    * and button sets can be build dynamically, or the preincluded ones for 
    * Submit/Cancel and OK/Cancel can be utilized. Forms can be processed in 3
    * ways -- via an asynchronous Connection utility call, a simple form 
    * POST or GET, or manually.
    * @namespace YAHOO.widget
    * @class Dialog
    * @extends YAHOO.widget.Panel
    * @constructor
    * @param {String} el The element ID representing the Dialog <em>OR</em>
    * @param {HTMLElement} el The element representing the Dialog
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this Dialog. See configuration 
    * documentation for more details.
    */
    YAHOO.widget.Dialog = function (el, userConfig) {
    
        YAHOO.widget.Dialog.superclass.constructor.call(this, el, userConfig);
    
    };


    var Event = YAHOO.util.Event,
        CustomEvent = YAHOO.util.CustomEvent,
        Dom = YAHOO.util.Dom,
        KeyListener = YAHOO.util.KeyListener,
        Connect = YAHOO.util.Connect,
        Button = YAHOO.widget.Button,
        Dialog = YAHOO.widget.Dialog,
        Lang = YAHOO.lang,

        /**
        * Constant representing the name of the Dialog's events
        * @property EVENT_TYPES
        * @private
        * @final
        * @type Object
        */
        EVENT_TYPES = {
        
            "BEFORE_SUBMIT": "beforeSubmit",
            "SUBMIT": "submit",
            "MANUAL_SUBMIT": "manualSubmit",
            "ASYNC_SUBMIT": "asyncSubmit",
            "FORM_SUBMIT": "formSubmit",
            "CANCEL": "cancel"
        
        },
        
        /**
        * Constant representing the Dialog's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "POST_METHOD": { 
                key: "postmethod", 
                value: "async" 
            },
            
            "BUTTONS": { 
                key: "buttons", 
                value: "none" 
            }
        
        };    


    /**
    * Constant representing the default CSS class used for a Dialog
    * @property Dialog.CSS_DIALOG
    * @static
    * @final
    * @type String
    */
    Dialog.CSS_DIALOG = "yui-dialog";


    function removeButtonEventHandlers() {

        var aButtons = this._aButtons,
            nButtons,
            oButton,
            i;

        if (Lang.isArray(aButtons)) {

            nButtons = aButtons.length;

            if (nButtons > 0) {

                i = nButtons - 1;

                do {

                    oButton = aButtons[i];
                    
                    if (oButton instanceof Button) {
                        
                        oButton.destroy();
                        
                    }
                    else if (oButton.tagName.toUpperCase() == "BUTTON") {

                        Event.purgeElement(oButton);
                        Event.purgeElement(oButton, false);

                    }

                }
                while (i--);
            
            }
        
        }

    }
    
    
    YAHOO.extend(Dialog, YAHOO.widget.Panel, { 

        
        /**
        * @property form
        * @description Object reference to the Dialog's 
        * <code>&#60;form&#62;</code> element.
        * @default null 
        * @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
        * level-one-html.html#ID-40002357">HTMLFormElement</a>
        */
        form: null,
    
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the Dialog's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
            Dialog.superclass.initDefaultConfig.call(this);
        
            /**
            * The internally maintained callback object for use with the 
            * Connection utility
            * @property callback
            * @type Object
            */
            this.callback = {
    
                /**
                * The function to execute upon success of the 
                * Connection submission
                * @property callback.success
                * @type Function
                */
                success: null,
    
                /**
                * The function to execute upon failure of the 
                * Connection submission
                * @property callback.failure
                * @type Function
                */
                failure: null,
    
                /**
                * The arbitraty argument or arguments to pass to the Connection 
                * callback functions
                * @property callback.argument
                * @type Object
                */
                argument: null
    
            };
        

            // Add form dialog config properties //
            
            /**
            * The method to use for posting the Dialog's form. Possible values 
            * are "async", "form", and "manual".
            * @config postmethod
            * @type String
            * @default async
            */
            this.cfg.addProperty(DEFAULT_CONFIG.POST_METHOD.key, {
                handler: this.configPostMethod, 
                value: DEFAULT_CONFIG.POST_METHOD.value, 
                validator: function (val) {
                    if (val != "form" && val != "async" && val != "none" && 
                        val != "manual") {
                        return false;
                    } else {
                        return true;
                    }
                }
            });
            
            /**
            * Array of object literals, each containing a set of properties 
            * defining a button to be appended into the Dialog's footer.
            * Each button object in the buttons array can have three properties:
            * <dt>text:</dt>
            * <dd>The text that will display on the face of the button.  <em>
            * Please note:</em> As of version 2.3, the text can include 
            * HTML.</dd>
            * <dt>handler:</dt>
            * <dd>Can be either:
            *     <ol>
            *         <li>A reference to a function that should fire when the 
            * button is clicked.  (In this case scope of this function is 
            * always its Dialog instance.)</li>
            *         <li>An object literal representing the code to be 
            * executed when the button is clicked.  Format:<br> <code> {<br>  
            * <strong>fn:</strong> Function,   &#47;&#47; The handler to call 
            * when  the event fires.<br> <strong>obj:</strong> Object, 
            * &#47;&#47; An  object to pass back to the handler.<br> <strong>
            * scope:</strong>  Object &#47;&#47; The object to use for the 
            * scope of the handler. <br> } </code> <br><em>Please note: this 
            * functionality was added in version 2.3.</em></li>
            *     </ol>
            * </dd>
            * <dt>isDefault:</dt>
            * <dd>An optional boolean value that specifies that a button 
            * should be highlighted and focused by default.</dd>
            * @config buttons
            * @type {Array|String}
            * @default "none"
            */
            this.cfg.addProperty(DEFAULT_CONFIG.BUTTONS.key, {
                handler: this.configButtons,
                value: DEFAULT_CONFIG.BUTTONS.value
            }); 
            
        },
        
        /**
        * Initializes the custom events for Dialog which are fired 
        * automatically at appropriate times by the Dialog class.
        * @method initEvents
        */
        initEvents: function () {
            Dialog.superclass.initEvents.call(this);
        
            var SIGNATURE = CustomEvent.LIST;
        
            /**
            * CustomEvent fired prior to submission
            * @event beforeSubmitEvent
            */ 
            this.beforeSubmitEvent = 
                this.createEvent(EVENT_TYPES.BEFORE_SUBMIT);
            this.beforeSubmitEvent.signature = SIGNATURE;
            
            /**
            * CustomEvent fired after submission
            * @event submitEvent
            */
            this.submitEvent = this.createEvent(EVENT_TYPES.SUBMIT);
            this.submitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired prior to manual submission
            * @event manualSubmitEvent
            */
            this.manualSubmitEvent = 
                this.createEvent(EVENT_TYPES.MANUAL_SUBMIT);
            this.manualSubmitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired prior to asynchronous submission
            * @event asyncSubmitEvent
            */ 
            this.asyncSubmitEvent = this.createEvent(EVENT_TYPES.ASYNC_SUBMIT);
            this.asyncSubmitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired prior to form-based submission
            * @event formSubmitEvent
            */
            this.formSubmitEvent = this.createEvent(EVENT_TYPES.FORM_SUBMIT);
            this.formSubmitEvent.signature = SIGNATURE;
        
            /**
            * CustomEvent fired after cancel
            * @event cancelEvent
            */
            this.cancelEvent = this.createEvent(EVENT_TYPES.CANCEL);
            this.cancelEvent.signature = SIGNATURE;
        
        },
        
        /**
        * The Dialog initialization method, which is executed for Dialog and 
        * all of its subclasses. This method is automatically called by the 
        * constructor, and  sets up all DOM references for pre-existing markup, 
        * and creates required markup if it is not already present.
        * @method init
        * @param {String} el The element ID representing the Dialog <em>OR</em>
        * @param {HTMLElement} el The element representing the Dialog
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this Dialog. 
        * See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            /*
                 Note that we don't pass the user config in here yet because 
                 we only want it executed once, at the lowest subclass level
            */

            Dialog.superclass.init.call(this, el/*, userConfig*/); 
        
            this.beforeInitEvent.fire(Dialog);
        
            Dom.addClass(this.element, Dialog.CSS_DIALOG);
        
            this.cfg.setProperty("visible", false);
        
            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
        
            this.showEvent.subscribe(this.focusFirst, this, true);
            this.beforeHideEvent.subscribe(this.blurButtons, this, true);

            this.subscribe("changeBody", this.registerForm);
        
            this.initEvent.fire(Dialog);
        },
        
        /**
        * Submits the Dialog's form depending on the value of the 
        * "postmethod" configuration property.  <strong>Please note:
        * </strong> As of version 2.3 this method will automatically handle 
        * asyncronous file uploads should the Dialog instance's form contain 
        * <code>&#60;input type="file"&#62;</code> elements.  If a Dialog 
        * instance will be handling asyncronous file uploads, its 
        * <code>callback</code> property will need to be setup with a 
        * <code>upload</code> handler rather than the standard 
        * <code>success</code> and, or <code>failure</code> handlers.  For more 
        * information, see the <a href="http://developer.yahoo.com/yui/
        * connection/#file">Connection Manager documenation on file uploads</a>.
        * @method doSubmit
        */
        doSubmit: function () {
    
            var oForm = this.form,
                bUseFileUpload = false,
                bUseSecureFileUpload = false,
                aElements,
                nElements,
                i,
                sMethod;


            switch (this.cfg.getProperty("postmethod")) {
    
            case "async":

                aElements = oForm.elements;
                nElements = aElements.length;

                if (nElements > 0) {
                
                    i = nElements - 1;
                
                    do {
                    
                        if (aElements[i].type == "file") {
                        
                            bUseFileUpload = true;
                            break;
                        
                        }
                    
                    }
                    while(i--);
                
                }

                if (bUseFileUpload && YAHOO.env.ua.ie && this.isSecure) {

                    bUseSecureFileUpload = true;
                
                }

                sMethod = 
                    (oForm.getAttribute("method") || "POST").toUpperCase();

                Connect.setForm(oForm, bUseFileUpload, bUseSecureFileUpload);

                Connect.asyncRequest(sMethod, oForm.getAttribute("action"), 
                    this.callback);

                this.asyncSubmitEvent.fire();

                break;

            case "form":

                oForm.submit();
                this.formSubmitEvent.fire();

                break;

            case "none":
            case "manual":

                this.manualSubmitEvent.fire();

                break;
    
            }
    
        },
        
        
        /**
        * Prepares the Dialog's internal FORM object, creating one if one is
        * not currently present.
        * @method registerForm
        */
        registerForm: function () {
    
            var form = this.element.getElementsByTagName("form")[0],
                me = this,
                firstElement,
                lastElement;


            if (this.form) {

                if (this.form == form && 
                    Dom.isAncestor(this.element, this.form)) {
    
                    return;
    
                }
                else {

                    Event.purgeElement(this.form);
                    
                    this.form = null;                
                
                }
            
            }
        

            if (!form) {

                form = document.createElement("form");
                form.name = "frm_" + this.id;

                this.body.appendChild(form);

            }


            if (form) {

                this.form = form;

                Event.on(form, "submit", function (e) {

                    Event.stopEvent(e);

                    this.submit();
                    this.form.blur();
        
                });


                this.firstFormElement = function () {
        
                    var f, el, nElements = form.elements.length;
        
                    for (f = 0; f < nElements; f++) {
    
                        el = form.elements[f];
    
                        if (el.focus && !el.disabled && el.type != "hidden") {
    
                            return el;
    
                        }
    
                    }
    
                    return null;
                    
                }();
            
                this.lastFormElement = function () {
        
                    var f, el, nElements = form.elements.length;
        
                    for (f = nElements - 1; f >= 0; f--) {
    
                        el = form.elements[f];
    
                        if (el.focus && !el.disabled && el.type != "hidden") {
    
                            return el;
    
                        }
    
                    }
    
                    return null;
    
                }();
            
                if (this.cfg.getProperty("modal")) {
            
                    firstElement = this.firstFormElement || this.firstButton;
        
                    if (firstElement) {
    
                        this.preventBackTab = new KeyListener(firstElement, 
                            { shift: true, keys: 9 }, 
                            { fn: me.focusLast, scope: me, 
                            correctScope: true });
    
                        this.showEvent.subscribe(this.preventBackTab.enable, 
                            this.preventBackTab, true);
    
                        this.hideEvent.subscribe(this.preventBackTab.disable, 
                            this.preventBackTab, true);
                    }
            
                    lastElement = this.lastButton || this.lastFormElement;
    
                    if (lastElement) {
    
                        this.preventTabOut = new KeyListener(lastElement, 
                            { shift: false, keys: 9 }, 
                            { fn: me.focusFirst, scope: me, 
                            correctScope: true });
    
                        this.showEvent.subscribe(this.preventTabOut.enable, 
                            this.preventTabOut, true);
    
                        this.hideEvent.subscribe(this.preventTabOut.disable, 
                            this.preventTabOut, true);
    
                    }
                }
            
            }

        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * The default event handler fired when the "close" property is 
        * changed. The method controls the appending or hiding of the close
        * icon at the top right of the Dialog.
        * @method configClose
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configClose: function (type, args, obj) {
            var val = args[0];
        
            function doCancel(e, obj) {
                obj.cancel();
            }
        
            if (val) {
                if (! this.close) {
                    this.close = document.createElement("div");
                    Dom.addClass(this.close, "container-close");
        
                    this.close.innerHTML = "&#160;";
                    this.innerElement.appendChild(this.close);
                    Event.on(this.close, "click", doCancel, this);
                } else {
                    this.close.style.display = "block";
                }
            } else {
                if (this.close) {
                    this.close.style.display = "none";
                }
            }
        },
        
        /**
        * The default event handler for the "buttons" configuration property
        * @method configButtons
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configButtons: function (type, args, obj) {
    
            var aButtons = args[0],
                oInnerElement = this.innerElement,
                oButton,
                oButtonEl,
                oYUIButton,
                nButtons,
                oSpan,
                oFooter,
                i;

            removeButtonEventHandlers.call(this);
            
            this._aButtons = null;

            if (Lang.isArray(aButtons)) {

                oSpan = document.createElement("span");
                oSpan.className = "button-group";

                nButtons = aButtons.length;

                this._aButtons = [];
        
                for (i = 0; i < nButtons; i++) {

                    oButton = aButtons[i];

                    if (Button) {

                        oYUIButton = new Button({ label: oButton.text, 
                                            container: oSpan });

                        oButtonEl = oYUIButton.get("element");

                        if (oButton.isDefault) {

                            oYUIButton.addClass("default");

                            this.defaultHtmlButton = oButtonEl;

                        }
    
                        if (Lang.isFunction(oButton.handler)) {
    
                            oYUIButton.set("onclick", { fn: oButton.handler, 
                                obj: this, scope: this });
            
                        }
                        else if (Lang.isObject(oButton.handler) && 
                            Lang.isFunction(oButton.handler.fn)) {

                            oYUIButton.set("onclick", { fn: oButton.handler.fn, 
                                obj: ((!Lang.isUndefined(oButton.handler.obj)) ? 
                                oButton.handler.obj : this), 
                                scope: (oButton.handler.scope || this) });
    
                        }

                        this._aButtons[this._aButtons.length] = oYUIButton;

                    }
                    else {
        
                        oButtonEl = document.createElement("button");
                        oButtonEl.setAttribute("type", "button");
            
                        if (oButton.isDefault) {
                            oButtonEl.className = "default";
                            this.defaultHtmlButton = oButtonEl;
                        }
    
                        oButtonEl.innerHTML = oButton.text;
    
                        if (Lang.isFunction(oButton.handler)) {
    
                            Event.on(oButtonEl, "click", oButton.handler, 
                                this, true);
            
                        }
                        else if (Lang.isObject(oButton.handler) && 
                            Lang.isFunction(oButton.handler.fn)) {
    
                            Event.on(oButtonEl, "click", oButton.handler.fn, 
                                ((!Lang.isUndefined(oButton.handler.obj)) ? 
                                oButton.handler.obj : this), 
                                (oButton.handler.scope || this));
    
                        }
            
                        oSpan.appendChild(oButtonEl);
                        
                        this._aButtons[this._aButtons.length] = oButtonEl;
                        
                    }

                    oButton.htmlButton = oButtonEl;
        
                    if (i === 0) {
                        this.firstButton = oButtonEl;
                    }
        
                    if (i == (nButtons - 1)) {
                        this.lastButton = oButtonEl;
                    }
        
                }
        
                this.setFooter(oSpan);

                oFooter = this.footer;
                
                if (Dom.inDocument(this.element) && 
                    !Dom.isAncestor(oInnerElement, oFooter)) {
    
                    oInnerElement.appendChild(oFooter);
                
                }
        
                this.cfg.refireEvent("iframe");
                this.cfg.refireEvent("underlay");

                this.buttonSpan = oSpan;

            } else { // Do cleanup

                oSpan = this.buttonSpan;
                oFooter = this.footer;

                if (oSpan && oFooter) {

                    oFooter.removeChild(oSpan);

                    this.buttonSpan = null;
                    this.firstButton = null;
                    this.lastButton = null;
                    this.defaultHtmlButton = null;

                }

            }

        },


        /**
        * @method getButtons
        * @description Returns an array containing each of the Dialog's 
        * buttons, by default an array of HTML <code>&#60;BUTTON&#60;</code> 
        * elements.  If the Dialog's buttons were created using the 
        * YAHOO.widget.Button class (via the inclusion of the optional Button 
        * dependancy on the page), an array of YAHOO.widget.Button instances 
        * is returned.
        * @return {Array}
        */
        getButtons: function () {
        
            var aButtons = this._aButtons;
            
            if (aButtons) {
            
                return aButtons;
            
            }
        
        },

        
        /**
        * Sets focus to the first element in the Dialog's form or the first 
        * button defined via the "buttons" configuration property. Called 
        * when the Dialog is made visible.
        * @method focusFirst
        */
        focusFirst: function (type, args, obj) {
    
            var oElement = this.firstFormElement,
                oEvent;

            if (args) {

                oEvent = args[1];

                if (oEvent) {

                    Event.stopEvent(oEvent);

                }

            }
        

            if (oElement) {

                /*
                    Place the call to the "focus" method inside a try/catch
                    block to prevent IE from throwing JavaScript errors if
                    the element is disabled or hidden.
                */

                try {

                    oElement.focus();

                }
                catch(oException) {

                }

            } else {

                this.focusDefaultButton();

            }

        },
        
        /**
        * Sets focus to the last element in the Dialog's form or the last 
        * button defined via the "buttons" configuration property.
        * @method focusLast
        */
        focusLast: function (type, args, obj) {
    
            var aButtons = this.cfg.getProperty("buttons"),
                oElement = this.lastFormElement,
                oEvent;
    
            if (args) {

                oEvent = args[1];

                if (oEvent) {

                    Event.stopEvent(oEvent);

                }

            }
            
            if (aButtons && Lang.isArray(aButtons)) {

                this.focusLastButton();

            } else {

                if (oElement) {

                    /*
                        Place the call to the "focus" method inside a try/catch
                        block to prevent IE from throwing JavaScript errors if
                        the element is disabled or hidden.
                    */
    
                    try {
    
                        oElement.focus();
    
                    }
                    catch(oException) {
    
                    }

                }

            }

        },
        
        /**
        * Sets the focus to the button that is designated as the default via 
        * the "buttons" configuration property. By default, this method is 
        * called when the Dialog is made visible.
        * @method focusDefaultButton
        */
        focusDefaultButton: function () {
        
            var oElement = this.defaultHtmlButton;
        
            if (oElement) {

                /*
                    Place the call to the "focus" method inside a try/catch
                    block to prevent IE from throwing JavaScript errors if
                    the element is disabled or hidden.
                */

                try {

                    oElement.focus();
                
                }
                catch(oException) {
                
                }

            }
        },
        
        /**
        * Blurs all the buttons defined via the "buttons" 
        * configuration property.
        * @method blurButtons
        */
        blurButtons: function () {
            
            var aButtons = this.cfg.getProperty("buttons"),
                nButtons,
                oButton,
                oElement,
                i;

            if (aButtons && Lang.isArray(aButtons)) {
            
                nButtons = aButtons.length;
                
                if (nButtons > 0) {
                
                    i = (nButtons - 1);
                    
                    do {
                    
                        oButton = aButtons[i];
                        
                        if (oButton) {

                            oElement = oButton.htmlButton;

                            if (oElement) {

                                /*
                                    Place the call to the "blur" method inside  
                                    a try/catch block to prevent IE from  
                                    throwing JavaScript errors if the element 
                                    is disabled or hidden.
                                */
    
                                try {
            
                                    oElement.blur();
                                
                                }
                                catch(oException) {
                                
                                
                                }
                            
                            }

                        }
                    
                    }
                    while(i--);
                
                }
            
            }

        },
        
        /**
        * Sets the focus to the first button created via the "buttons"
        * configuration property.
        * @method focusFirstButton
        */
        focusFirstButton: function () {
    
            var aButtons = this.cfg.getProperty("buttons"),
                oButton,
                oElement;

            if (aButtons && Lang.isArray(aButtons)) {

                oButton = aButtons[0];

                if (oButton) {

                    oElement = oButton.htmlButton;
                    
                    if (oElement) {

                        /*
                            Place the call to the "focus" method inside a 
                            try/catch block to prevent IE from throwing 
                            JavaScript errors if the element is disabled 
                            or hidden.
                        */
    
                        try {
    
                            oElement.focus();
                        
                        }
                        catch(oException) {
                        
                        
                        }
                    
                    }

                }

            }
        },
        
        /**
        * Sets the focus to the last button created via the "buttons" 
        * configuration property.
        * @method focusLastButton
        */
        focusLastButton: function () {
    
            var aButtons = this.cfg.getProperty("buttons"),
                nButtons,
                oButton,
                oElement;

            if (aButtons && Lang.isArray(aButtons)) {

                nButtons = aButtons.length;
                
                if (nButtons > 0) {

                    oButton = aButtons[(nButtons - 1)];
                    
                    if (oButton) {
                    
                        oElement = oButton.htmlButton;

                        if (oElement) {

                            /*
                                Place the call to the "focus" method inside a 
                                try/catch block to prevent IE from throwing 
                                JavaScript errors if the element is disabled
                                or hidden.
                            */
        
                            try {
        
                                oElement.focus();
                            
                            }
                            catch(oException) {
                            
                            
                            }
                        
                        }
                    
                    }
                
                }
            
            }

        },
        
        /**
        * The default event handler for the "postmethod" configuration property
        * @method configPostMethod
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For 
        * configuration handlers, args[0] will equal the newly applied value 
        * for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configPostMethod: function (type, args, obj) {
    
            var postmethod = args[0];
        
            this.registerForm();
    
        },
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Built-in function hook for writing a validation function that will 
        * be checked for a "true" value prior to a submit. This function, as 
        * implemented by default, always returns true, so it should be 
        * overridden if validation is necessary.
        * @method validate
        */
        validate: function () {
            return true;
        },
        
        /**
        * Executes a submit of the Dialog followed by a hide, if validation 
        * is successful.
        * @method submit
        */
        submit: function () {
            if (this.validate()) {
                this.beforeSubmitEvent.fire();
                this.doSubmit();
                this.submitEvent.fire();
                this.hide();
                return true;
            } else {
                return false;
            }
        },
        
        /**
        * Executes the cancel of the Dialog followed by a hide.
        * @method cancel
        */
        cancel: function () {
            this.cancelEvent.fire();
            this.hide();
        },
        
        /**
        * Returns a JSON-compatible data structure representing the data 
        * currently contained in the form.
        * @method getData
        * @return {Object} A JSON object reprsenting the data of the 
        * current form.
        */
        getData: function () {
        
            var oForm = this.form,
                aElements,
                nTotalElements,
                oData,
                sName,
                oElement,
                nElements,
                sType,
                sTagName,
                aOptions,
                nOptions,
                aValues,
                oOption,
                sValue,
                oRadio,
                oCheckbox,
                i,
                n;    
    
            function isFormElement(p_oElement) {
            
                var sTag = p_oElement.tagName.toUpperCase();
                
                return ((sTag == "INPUT" || sTag == "TEXTAREA" || 
                        sTag == "SELECT") && p_oElement.name == sName);
    
            }
    
    
            if (oForm) {
        
                aElements = oForm.elements;
                nTotalElements = aElements.length;
                oData = {};
    
        
                for (i = 0; i < nTotalElements; i++) {
        
                    sName = aElements[i].name;
        
                    /*
                        Using "Dom.getElementsBy" to safeguard user from JS 
                        errors that result from giving a form field (or set of 
                        fields) the same name as a native method of a form 
                        (like "submit") or a DOM collection (such as the "item"
                        method). Originally tried accessing fields via the 
                        "namedItem" method of the "element" collection, but 
                        discovered that it won't return a collection of fields 
                        in Gecko.
                    */
        
                    oElement = Dom.getElementsBy(isFormElement, "*", oForm);
                    nElements = oElement.length;
        
                    if (nElements > 0) {
        
                        if (nElements == 1) {
        
                            oElement = oElement[0];
        
                            sType = oElement.type;
                            sTagName = oElement.tagName.toUpperCase();
        
                            switch (sTagName) {
        
                            case "INPUT":
    
                                if (sType == "checkbox") {
    
                                    oData[sName] = oElement.checked;
    
                                }
                                else if (sType != "radio") {
    
                                    oData[sName] = oElement.value;
    
                                }
    
                                break;
    
                            case "TEXTAREA":
    
                                oData[sName] = oElement.value;
    
                                break;
    
                            case "SELECT":
    
                                aOptions = oElement.options;
                                nOptions = aOptions.length;
                                aValues = [];
    
                                for (n = 0; n < nOptions; n++) {
    
                                    oOption = aOptions[n];
    
                                    if (oOption.selected) {
    
                                        sValue = oOption.value;
    
                                        if (!sValue || sValue === "") {
    
                                            sValue = oOption.text;
    
                                        }
    
                                        aValues[aValues.length] = sValue;
    
                                    }
    
                                }
    
                                oData[sName] = aValues;
    
                                break;
        
                            }
        
        
                        }
                        else {
        
                            sType = oElement[0].type;
        
                            switch (sType) {
        
                            case "radio":
    
                                for (n = 0; n < nElements; n++) {
    
                                    oRadio = oElement[n];
    
                                    if (oRadio.checked) {
    
                                        oData[sName] = oRadio.value;
                                        break;
    
                                    }
    
                                }
    
                                break;
    
                            case "checkbox":
    
                                aValues = [];
    
                                for (n = 0; n < nElements; n++) {
    
                                    oCheckbox = oElement[n];
    
                                    if (oCheckbox.checked) {
    
                                        aValues[aValues.length] = 
                                            oCheckbox.value;
    
                                    }
    
                                }
    
                                oData[sName] = aValues;
    
                                break;
        
                            }
        
                        }
        
                    }
        
                }
        
            }
        
        
            return oData;
        
        },
        
        /**
        * Removes the Panel element from the DOM and sets all child elements 
        * to null.
        * @method destroy
        */
        destroy: function () {
        
            removeButtonEventHandlers.call(this);
            
            this._aButtons = null;

            var aForms = this.element.getElementsByTagName("form"),
                oForm;
            
            if (aForms.length > 0) {

                oForm = aForms[0];

                if (oForm) {
                   
                    Event.purgeElement(oForm);
            
                    this.body.removeChild(oForm);
                    
                    this.form = null;
            
                }
            
            }
        
            Dialog.superclass.destroy.call(this);  
        
        },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the Dialog
        */
        toString: function () {
            return "Dialog " + this.id;
        }
    
    });

}());
(function () {

    /**
    * SimpleDialog is a simple implementation of Dialog that can be used to 
    * submit a single value. Forms can be processed in 3 ways -- via an 
    * asynchronous Connection utility call, a simple form POST or GET, 
    * or manually.
    * @namespace YAHOO.widget
    * @class SimpleDialog
    * @extends YAHOO.widget.Dialog
    * @constructor
    * @param {String} el The element ID representing the SimpleDialog 
    * <em>OR</em>
    * @param {HTMLElement} el The element representing the SimpleDialog
    * @param {Object} userConfig The configuration object literal containing 
    * the configuration that should be set for this SimpleDialog. See 
    * configuration documentation for more details.
    */
    YAHOO.widget.SimpleDialog = function (el, userConfig) {
    
        YAHOO.widget.SimpleDialog.superclass.constructor.call(this, 
            el, userConfig);
    
    };

    var Dom = YAHOO.util.Dom,
        SimpleDialog = YAHOO.widget.SimpleDialog,
    
        /**
        * Constant representing the SimpleDialog's configuration properties
        * @property DEFAULT_CONFIG
        * @private
        * @final
        * @type Object
        */
        DEFAULT_CONFIG = {
        
            "ICON": { 
                key: "icon", 
                value: "none", 
                suppressEvent: true  
            },
        
            "TEXT": { 
                key: "text", 
                value: "", 
                suppressEvent: true, 
                supercedes: ["icon"] 
            }
        
        };

    /**
    * Constant for the standard network icon for a blocking action
    * @property SimpleDialog.ICON_BLOCK
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_BLOCK = "blckicon";
    
    /**
    * Constant for the standard network icon for alarm
    * @property SimpleDialog.ICON_ALARM
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_ALARM = "alrticon";
    
    /**
    * Constant for the standard network icon for help
    * @property SimpleDialog.ICON_HELP
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_HELP  = "hlpicon";
    
    /**
    * Constant for the standard network icon for info
    * @property SimpleDialog.ICON_INFO
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_INFO  = "infoicon";
    
    /**
    * Constant for the standard network icon for warn
    * @property SimpleDialog.ICON_WARN
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_WARN  = "warnicon";
    
    /**
    * Constant for the standard network icon for a tip
    * @property SimpleDialog.ICON_TIP
    * @static
    * @final
    * @type String
    */
    SimpleDialog.ICON_TIP   = "tipicon";
    
    SimpleDialog.ICON_CSS_CLASSNAME = "yui-icon";
    
    /**
    * Constant representing the default CSS class used for a SimpleDialog
    * @property SimpleDialog.CSS_SIMPLEDIALOG
    * @static
    * @final
    * @type String
    */
    SimpleDialog.CSS_SIMPLEDIALOG = "yui-simple-dialog";

    
    YAHOO.extend(SimpleDialog, YAHOO.widget.Dialog, {
    
        /**
        * Initializes the class's configurable properties which can be changed 
        * using the SimpleDialog's Config object (cfg).
        * @method initDefaultConfig
        */
        initDefaultConfig: function () {
        
            SimpleDialog.superclass.initDefaultConfig.call(this);
        
            // Add dialog config properties //
        
            /**
            * Sets the informational icon for the SimpleDialog
            * @config icon
            * @type String
            * @default "none"
            */
            this.cfg.addProperty(DEFAULT_CONFIG.ICON.key, {
                handler: this.configIcon,
                value: DEFAULT_CONFIG.ICON.value,
                suppressEvent: DEFAULT_CONFIG.ICON.suppressEvent
            });
        
            /**
            * Sets the text for the SimpleDialog
            * @config text
            * @type String
            * @default ""
            */
            this.cfg.addProperty(DEFAULT_CONFIG.TEXT.key, { 
                handler: this.configText, 
                value: DEFAULT_CONFIG.TEXT.value, 
                suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent, 
                supercedes: DEFAULT_CONFIG.TEXT.supercedes 
            });
        
        },
        
        
        /**
        * The SimpleDialog initialization method, which is executed for 
        * SimpleDialog and all of its subclasses. This method is automatically 
        * called by the constructor, and  sets up all DOM references for 
        * pre-existing markup, and creates required markup if it is not 
        * already present.
        * @method init
        * @param {String} el The element ID representing the SimpleDialog 
        * <em>OR</em>
        * @param {HTMLElement} el The element representing the SimpleDialog
        * @param {Object} userConfig The configuration object literal 
        * containing the configuration that should be set for this 
        * SimpleDialog. See configuration documentation for more details.
        */
        init: function (el, userConfig) {

            /*
                Note that we don't pass the user config in here yet because we 
                only want it executed once, at the lowest subclass level
            */

            SimpleDialog.superclass.init.call(this, el/*, userConfig*/);
        
            this.beforeInitEvent.fire(SimpleDialog);
        
            Dom.addClass(this.element, SimpleDialog.CSS_SIMPLEDIALOG);
        
            this.cfg.queueProperty("postmethod", "manual");
        
            if (userConfig) {
                this.cfg.applyConfig(userConfig, true);
            }
        
            this.beforeRenderEvent.subscribe(function () {
                if (! this.body) {
                    this.setBody("");
                }
            }, this, true);
        
            this.initEvent.fire(SimpleDialog);
        
        },
        
        /**
        * Prepares the SimpleDialog's internal FORM object, creating one if one 
        * is not currently present, and adding the value hidden field.
        * @method registerForm
        */
        registerForm: function () {

            SimpleDialog.superclass.registerForm.call(this);

            this.form.innerHTML += "<input type=\"hidden\" name=\"" + 
                this.id + "\" value=\"\"/>";

        },
        
        // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Fired when the "icon" property is set.
        * @method configIcon
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configIcon: function (type,args,obj) {
        
            var sIcon = args[0],
                oBody = this.body,
                sCSSClass = SimpleDialog.ICON_CSS_CLASSNAME,
                oIcon,
                oIconParent;
        
            if (sIcon && sIcon != "none") {

                oIcon = Dom.getElementsByClassName(sCSSClass, "*" , oBody);

                if (oIcon) {

                    oIconParent = oIcon.parentNode;
                    
                    if (oIconParent) {
                    
                        oIconParent.removeChild(oIcon);
                        
                        oIcon = null;
                    
                    }

                }


                if (sIcon.indexOf(".") == -1) {

                    oIcon = document.createElement("span");
                    oIcon.className = (sCSSClass + " " + sIcon);
                    oIcon.innerHTML = "&#160;";

                } else {

                    oIcon = document.createElement("img");
                    oIcon.src = (this.imageRoot + sIcon);
                    oIcon.className = sCSSClass;

                }
                

                if (oIcon) {
                
                    oBody.insertBefore(oIcon, oBody.firstChild);
                
                }

            }

        },
        
        /**
        * Fired when the "text" property is set.
        * @method configText
        * @param {String} type The CustomEvent type (usually the property name)
        * @param {Object[]} args The CustomEvent arguments. For configuration 
        * handlers, args[0] will equal the newly applied value for the property.
        * @param {Object} obj The scope object. For configuration handlers, 
        * this will usually equal the owner.
        */
        configText: function (type,args,obj) {
            var text = args[0];
            if (text) {
                this.setBody(text);
                this.cfg.refireEvent("icon");
            }
        },
        
        // END BUILT-IN PROPERTY EVENT HANDLERS //
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the SimpleDialog
        */
        toString: function () {
            return "SimpleDialog " + this.id;
        }
    
    });

}());
(function () {

    /**
    * ContainerEffect encapsulates animation transitions that are executed when 
    * an Overlay is shown or hidden.
    * @namespace YAHOO.widget
    * @class ContainerEffect
    * @constructor
    * @param {YAHOO.widget.Overlay} overlay The Overlay that the animation 
    * should be associated with
    * @param {Object} attrIn The object literal representing the animation 
    * arguments to be used for the animate-in transition. The arguments for 
    * this literal are: attributes(object, see YAHOO.util.Anim for description), 
    * duration(Number), and method(i.e. Easing.easeIn).
    * @param {Object} attrOut The object literal representing the animation 
    * arguments to be used for the animate-out transition. The arguments for  
    * this literal are: attributes(object, see YAHOO.util.Anim for description), 
    * duration(Number), and method(i.e. Easing.easeIn).
    * @param {HTMLElement} targetElement Optional. The target element that  
    * should be animated during the transition. Defaults to overlay.element.
    * @param {class} Optional. The animation class to instantiate. Defaults to 
    * YAHOO.util.Anim. Other options include YAHOO.util.Motion.
    */
    YAHOO.widget.ContainerEffect = 
    
        function (overlay, attrIn, attrOut, targetElement, animClass) {
    
        if (!animClass) {
            animClass = YAHOO.util.Anim;
        }
        
        /**
        * The overlay to animate
        * @property overlay
        * @type YAHOO.widget.Overlay
        */
        this.overlay = overlay;
    
        /**
        * The animation attributes to use when transitioning into view
        * @property attrIn
        * @type Object
        */
        this.attrIn = attrIn;
    
        /**
        * The animation attributes to use when transitioning out of view
        * @property attrOut
        * @type Object
        */
        this.attrOut = attrOut;
    
        /**
        * The target element to be animated
        * @property targetElement
        * @type HTMLElement
        */
        this.targetElement = targetElement || overlay.element;
    
        /**
        * The animation class to use for animating the overlay
        * @property animClass
        * @type class
        */
        this.animClass = animClass;
    
    };


    var Dom = YAHOO.util.Dom,
        CustomEvent = YAHOO.util.CustomEvent,
        Easing = YAHOO.util.Easing,
        ContainerEffect = YAHOO.widget.ContainerEffect;


    /**
    * A pre-configured ContainerEffect instance that can be used for fading 
    * an overlay in and out.
    * @method FADE
    * @static
    * @param {Overlay} overlay The Overlay object to animate
    * @param {Number} dur The duration of the animation
    * @return {ContainerEffect} The configured ContainerEffect object
    */
    ContainerEffect.FADE = function (overlay, dur) {
    
        var fade = new ContainerEffect(overlay, 
        
            { attributes: { opacity: { from: 0, to: 1 } }, 
                duration: dur, 
                method: Easing.easeIn }, 
            
            { attributes: { opacity: { to: 0 } },
                duration: dur, 
                method: Easing.easeOut }, 
            
            overlay.element);
        
    
        fade.handleStartAnimateIn = function (type,args,obj) {
            Dom.addClass(obj.overlay.element, "hide-select");
        
            if (! obj.overlay.underlay) {
                obj.overlay.cfg.refireEvent("underlay");
            }
        
            if (obj.overlay.underlay) {
    
                obj.initialUnderlayOpacity = 
                    Dom.getStyle(obj.overlay.underlay, "opacity");
    
                obj.overlay.underlay.style.filter = null;
    
            }
        
            Dom.setStyle(obj.overlay.element, "visibility", "visible");
            Dom.setStyle(obj.overlay.element, "opacity", 0);
        };
        
    
        fade.handleCompleteAnimateIn = function (type,args,obj) {
            Dom.removeClass(obj.overlay.element, "hide-select");
        
            if (obj.overlay.element.style.filter) {
                obj.overlay.element.style.filter = null;
            }
        
            if (obj.overlay.underlay) {
                Dom.setStyle(obj.overlay.underlay, "opacity", 
                    obj.initialUnderlayOpacity);
            }
        
            obj.overlay.cfg.refireEvent("iframe");
            obj.animateInCompleteEvent.fire();
        };
        
    
        fade.handleStartAnimateOut = function (type, args, obj) {
            Dom.addClass(obj.overlay.element, "hide-select");
        
            if (obj.overlay.underlay) {
                obj.overlay.underlay.style.filter = null;
            }
        };
        
    
        fade.handleCompleteAnimateOut =  function (type, args, obj) {
            Dom.removeClass(obj.overlay.element, "hide-select");
            if (obj.overlay.element.style.filter) {
                obj.overlay.element.style.filter = null;
            }
            Dom.setStyle(obj.overlay.element, "visibility", "hidden");
            Dom.setStyle(obj.overlay.element, "opacity", 1);
        
            obj.overlay.cfg.refireEvent("iframe");
        
            obj.animateOutCompleteEvent.fire();
        };
        
        fade.init();
        return fade;
    };
    
    
    /**
    * A pre-configured ContainerEffect instance that can be used for sliding an 
    * overlay in and out.
    * @method SLIDE
    * @static
    * @param {Overlay} overlay The Overlay object to animate
    * @param {Number} dur The duration of the animation
    * @return {ContainerEffect} The configured ContainerEffect object
    */
    ContainerEffect.SLIDE = function (overlay, dur) {
    
        var x = overlay.cfg.getProperty("x") || Dom.getX(overlay.element),
    
            y = overlay.cfg.getProperty("y") || Dom.getY(overlay.element),
    
            clientWidth = Dom.getClientWidth(),
    
            offsetWidth = overlay.element.offsetWidth,
    
            slide = new ContainerEffect(overlay, 
            
            { attributes: { points: { to: [x, y] } },
                duration: dur,
                method: Easing.easeIn },
    
            { attributes: { points: { to: [(clientWidth + 25), y] } },
                duration: dur,
                method: Easing.easeOut },
    
            overlay.element, YAHOO.util.Motion);
        
        
        slide.handleStartAnimateIn = function (type,args,obj) {
            obj.overlay.element.style.left = ((-25) - offsetWidth) + "px";
            obj.overlay.element.style.top  = y + "px";
        };
        
        slide.handleTweenAnimateIn = function (type, args, obj) {
        
            var pos = Dom.getXY(obj.overlay.element),
                currentX = pos[0],
                currentY = pos[1];
        
            if (Dom.getStyle(obj.overlay.element, "visibility") == 
                "hidden" && currentX < x) {

                Dom.setStyle(obj.overlay.element, "visibility", "visible");

            }
        
            obj.overlay.cfg.setProperty("xy", [currentX, currentY], true);
            obj.overlay.cfg.refireEvent("iframe");
        };
        
        slide.handleCompleteAnimateIn = function (type, args, obj) {
            obj.overlay.cfg.setProperty("xy", [x, y], true);
            obj.startX = x;
            obj.startY = y;
            obj.overlay.cfg.refireEvent("iframe");
            obj.animateInCompleteEvent.fire();
        };
        
        slide.handleStartAnimateOut = function (type, args, obj) {
    
            var vw = Dom.getViewportWidth(),
                pos = Dom.getXY(obj.overlay.element),
                yso = pos[1],
                currentTo = obj.animOut.attributes.points.to;
    
            obj.animOut.attributes.points.to = [(vw + 25), yso];
    
        };
        
        slide.handleTweenAnimateOut = function (type, args, obj) {
    
            var pos = Dom.getXY(obj.overlay.element),
                xto = pos[0],
                yto = pos[1];
        
            obj.overlay.cfg.setProperty("xy", [xto, yto], true);
            obj.overlay.cfg.refireEvent("iframe");
        };
        
        slide.handleCompleteAnimateOut = function (type, args, obj) {
            Dom.setStyle(obj.overlay.element, "visibility", "hidden");
        
            obj.overlay.cfg.setProperty("xy", [x, y]);
            obj.animateOutCompleteEvent.fire();
        };
        
        slide.init();
        return slide;
    };
    
    ContainerEffect.prototype = {
    
        /**
        * Initializes the animation classes and events.
        * @method init
        */
        init: function () {

            this.beforeAnimateInEvent = this.createEvent("beforeAnimateIn");
            this.beforeAnimateInEvent.signature = CustomEvent.LIST;
            
            this.beforeAnimateOutEvent = this.createEvent("beforeAnimateOut");
            this.beforeAnimateOutEvent.signature = CustomEvent.LIST;
        
            this.animateInCompleteEvent = this.createEvent("animateInComplete");
            this.animateInCompleteEvent.signature = CustomEvent.LIST;
        
            this.animateOutCompleteEvent = 
                this.createEvent("animateOutComplete");
            this.animateOutCompleteEvent.signature = CustomEvent.LIST;
        
            this.animIn = new this.animClass(this.targetElement, 
                this.attrIn.attributes, this.attrIn.duration, 
                this.attrIn.method);

            this.animIn.onStart.subscribe(this.handleStartAnimateIn, this);
            this.animIn.onTween.subscribe(this.handleTweenAnimateIn, this);

            this.animIn.onComplete.subscribe(this.handleCompleteAnimateIn, 
                this);
        
            this.animOut = new this.animClass(this.targetElement, 
                this.attrOut.attributes, this.attrOut.duration, 
                this.attrOut.method);

            this.animOut.onStart.subscribe(this.handleStartAnimateOut, this);
            this.animOut.onTween.subscribe(this.handleTweenAnimateOut, this);
            this.animOut.onComplete.subscribe(this.handleCompleteAnimateOut, 
                this);

        },
        
        /**
        * Triggers the in-animation.
        * @method animateIn
        */
        animateIn: function () {
            this.beforeAnimateInEvent.fire();
            this.animIn.animate();
        },
        
        /**
        * Triggers the out-animation.
        * @method animateOut
        */
        animateOut: function () {
            this.beforeAnimateOutEvent.fire();
            this.animOut.animate();
        },
        
        /**
        * The default onStart handler for the in-animation.
        * @method handleStartAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleStartAnimateIn: function (type, args, obj) { },
    
        /**
        * The default onTween handler for the in-animation.
        * @method handleTweenAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleTweenAnimateIn: function (type, args, obj) { },
    
        /**
        * The default onComplete handler for the in-animation.
        * @method handleCompleteAnimateIn
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleCompleteAnimateIn: function (type, args, obj) { },
        
        /**
        * The default onStart handler for the out-animation.
        * @method handleStartAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleStartAnimateOut: function (type, args, obj) { },
    
        /**
        * The default onTween handler for the out-animation.
        * @method handleTweenAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleTweenAnimateOut: function (type, args, obj) { },
    
        /**
        * The default onComplete handler for the out-animation.
        * @method handleCompleteAnimateOut
        * @param {String} type The CustomEvent type
        * @param {Object[]} args The CustomEvent arguments
        * @param {Object} obj The scope object
        */
        handleCompleteAnimateOut: function (type, args, obj) { },
        
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} The string representation of the ContainerEffect
        */
        toString: function () {
            var output = "ContainerEffect";
            if (this.overlay) {
                output += " [" + this.overlay.toString() + "]";
            }
            return output;
        }
    
    };

    YAHOO.lang.augmentProto(ContainerEffect, YAHOO.util.EventProvider);

})();
YAHOO.register("container", YAHOO.widget.Module, {version: "2.3.0", build: "357"});

