# Yahoo! UI Library

### Calendar 2.9.0

Yahoo! UI Library > calendar > Calendar.js (source view)
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    /**
    * The Calendar component is a UI control that enables users to choose one or more dates from a graphical calendar presented in a one-month or
    * multi-month interface. Calendars are generated entirely via script and can be navigated without any page refreshes.
    * @module    calendar
    * @title    Calendar
    * @namespace  YAHOO.widget
    * @requires  yahoo,dom,event
    */
    (function(){

        var Dom = YAHOO.util.Dom,
            Event = YAHOO.util.Event,
            Lang = YAHOO.lang,
            DateMath = YAHOO.widget.DateMath;

    /**
    * Calendar is the base class for the Calendar widget. In its most basic
    * implementation, it has the ability to render a calendar widget on the page
    * that can be manipulated to select a single date, move back and forth between
    * months and years.
    * <p>To construct the placeholder for the calendar widget, the code is as
    * follows:
    *   <xmp>
    *       <div id="calContainer"></div>
    *   </xmp>
    * </p>
    * <p>
    * <strong>NOTE: As of 2.4.0, the constructor's ID argument is optional.</strong>
    * The Calendar can be constructed by simply providing a container ID string,
    * or a reference to a container DIV HTMLElement (the element needs to exist
    * in the document).
    *
    * E.g.:
    *   <xmp>
    *       var c = new YAHOO.widget.Calendar("calContainer", configOptions);
    *   </xmp>
    * or:
    *   <xmp>
    *       var containerDiv = YAHOO.util.Dom.get("calContainer");
    *       var c = new YAHOO.widget.Calendar(containerDiv, configOptions);
    *   </xmp>
    * </p>
    * <p>
    * If not provided, the ID will be generated from the container DIV ID by adding an "_t" suffix.
    * For example if an ID is not provided, and the container's ID is "calContainer", the Calendar's ID will be set to "calContainer_t".
    * </p>
    *
    * @namespace YAHOO.widget
    * @class Calendar
    * @constructor
    * @param {String} id optional The id of the table element that will represent the Calendar widget. As of 2.4.0, this argument is optional.
    * @param {String | HTMLElement} container The id of the container div element that will wrap the Calendar table, or a reference to a DIV element which exists in the document.
    * @param {Object} config optional The configuration object containing the initial configuration values for the Calendar.
    */
    function Calendar(id, containerId, config) {
        this.init.apply(this, arguments);
    }

    /**
    * The path to be used for images loaded for the Calendar
    * @property YAHOO.widget.Calendar.IMG_ROOT
    * @static
    * @deprecated   You can now customize images by overriding the calclose, calnavleft and calnavright default CSS classes for the close icon, left arrow and right arrow respectively
    * @type String
    */
    Calendar.IMG_ROOT = null;

    /**
    * Type constant used for renderers to represent an individual date (M/D/Y)
    * @property YAHOO.widget.Calendar.DATE
    * @static
    * @final
    * @type String
    */
    Calendar.DATE = "D";

    /**
    * Type constant used for renderers to represent an individual date across any year (M/D)
    * @property YAHOO.widget.Calendar.MONTH_DAY
    * @static
    * @final
    * @type String
    */
    Calendar.MONTH_DAY = "MD";

    /**
    * Type constant used for renderers to represent a weekday
    * @property YAHOO.widget.Calendar.WEEKDAY
    * @static
    * @final
    * @type String
    */
    Calendar.WEEKDAY = "WD";

    /**
    * Type constant used for renderers to represent a range of individual dates (M/D/Y-M/D/Y)
    * @property YAHOO.widget.Calendar.RANGE
    * @static
    * @final
    * @type String
    */
    Calendar.RANGE = "R";

    /**
    * Type constant used for renderers to represent a month across any year
    * @property YAHOO.widget.Calendar.MONTH
    * @static
    * @final
    * @type String
    */
    Calendar.MONTH = "M";

    /**
    * Constant that represents the total number of date cells that are displayed in a given month
    * @property YAHOO.widget.Calendar.DISPLAY_DAYS
    * @static
    * @final
    * @type Number
    */
    Calendar.DISPLAY_DAYS = 42;

    /**
    * Constant used for halting the execution of the remainder of the render stack
    * @property YAHOO.widget.Calendar.STOP_RENDER
    * @static
    * @final
    * @type String
    */
    Calendar.STOP_RENDER = "S";

    /**
    * Constant used to represent short date field string formats (e.g. Tu or Feb)
    * @property YAHOO.widget.Calendar.SHORT
    * @static
    * @final
    * @type String
    */
    Calendar.SHORT = "short";

    /**
    * Constant used to represent long date field string formats (e.g. Monday or February)
    * @property YAHOO.widget.Calendar.LONG
    * @static
    * @final
    * @type String
    */
    Calendar.LONG = "long";

    /**
    * Constant used to represent medium date field string formats (e.g. Mon)
    * @property YAHOO.widget.Calendar.MEDIUM
    * @static
    * @final
    * @type String
    */
    Calendar.MEDIUM = "medium";

    /**
    * Constant used to represent single character date field string formats (e.g. M, T, W)
    * @property YAHOO.widget.Calendar.ONE_CHAR
    * @static
    * @final
    * @type String
    */
    Calendar.ONE_CHAR = "1char";

    /**
    * The set of default Config property keys and values for the Calendar.
    *
    * <p>
    * NOTE: This property is made public in order to allow users to change
    * the default values of configuration properties. Users should not
    * modify the key string, unless they are overriding the Calendar implementation
    * </p>
    *
    * <p>
    * The property is an object with key/value pairs, the key being the
    * uppercase configuration property name and the value being an object
    * literal with a key string property, and a value property, specifying the
    * default value of the property. To override a default value, you can set
    * the value property, for example, <code>YAHOO.widget.Calendar.DEFAULT_CONFIG.MULTI_SELECT.value = true;</code>
    *
    * @property YAHOO.widget.Calendar.DEFAULT_CONFIG
    * @static
    * @type Object
    */

    Calendar.DEFAULT_CONFIG = {
        YEAR_OFFSET : {key:"year_offset", value:0, supercedes:["pagedate", "selected", "mindate","maxdate"]},
        TODAY : {key:"today", value:new Date(), supercedes:["pagedate"]},
        PAGEDATE : {key:"pagedate", value:null},
        SELECTED : {key:"selected", value:[]},
        TITLE : {key:"title", value:""},
        CLOSE : {key:"close", value:false},
        IFRAME : {key:"iframe", value:(YAHOO.env.ua.ie && YAHOO.env.ua.ie <= 6) ? true : false},
        MINDATE : {key:"mindate", value:null},
        MAXDATE : {key:"maxdate", value:null},
        MULTI_SELECT : {key:"multi_select", value:false},
        OOM_SELECT : {key:"oom_select", value:false},
        START_WEEKDAY : {key:"start_weekday", value:0},
        SHOW_WEEKDAYS : {key:"show_weekdays", value:true},
        SHOW_WEEK_HEADER : {key:"show_week_header", value:false},
        SHOW_WEEK_FOOTER : {key:"show_week_footer", value:false},
        HIDE_BLANK_WEEKS : {key:"hide_blank_weeks", value:false},
        NAV_ARROW_LEFT: {key:"nav_arrow_left", value:null} ,
        NAV_ARROW_RIGHT : {key:"nav_arrow_right", value:null} ,
        MONTHS_SHORT : {key:"months_short", value:["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]},
        MONTHS_LONG: {key:"months_long", value:["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]},
        WEEKDAYS_1CHAR: {key:"weekdays_1char", value:["S", "M", "T", "W", "T", "F", "S"]},
        WEEKDAYS_SHORT: {key:"weekdays_short", value:["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"]},
        WEEKDAYS_MEDIUM: {key:"weekdays_medium", value:["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]},
        WEEKDAYS_LONG: {key:"weekdays_long", value:["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]},
        LOCALE_MONTHS:{key:"locale_months", value:"long"},
        LOCALE_WEEKDAYS:{key:"locale_weekdays", value:"short"},
        DATE_DELIMITER:{key:"date_delimiter", value:","},
        DATE_FIELD_DELIMITER:{key:"date_field_delimiter", value:"/"},
        DATE_RANGE_DELIMITER:{key:"date_range_delimiter", value:"-"},
        MY_MONTH_POSITION:{key:"my_month_position", value:1},
        MY_YEAR_POSITION:{key:"my_year_position", value:2},
        MD_MONTH_POSITION:{key:"md_month_position", value:1},
        MD_DAY_POSITION:{key:"md_day_position", value:2},
        MDY_MONTH_POSITION:{key:"mdy_month_position", value:1},
        MDY_DAY_POSITION:{key:"mdy_day_position", value:2},
        MDY_YEAR_POSITION:{key:"mdy_year_position", value:3},
        MY_LABEL_MONTH_POSITION:{key:"my_label_month_position", value:1},
        MY_LABEL_YEAR_POSITION:{key:"my_label_year_position", value:2},
        MY_LABEL_MONTH_SUFFIX:{key:"my_label_month_suffix", value:" "},
        MY_LABEL_YEAR_SUFFIX:{key:"my_label_year_suffix", value:""},
        NAV: {key:"navigator", value: null},
        STRINGS : {
            key:"strings",
            value: {
                previousMonth : "Previous Month",
                nextMonth : "Next Month",
                close: "Close"
            },
            supercedes : ["close", "title"]
        }
    };

    /**
    * The set of default Config property keys and values for the Calendar
    * @property YAHOO.widget.Calendar._DEFAULT_CONFIG
    * @deprecated Made public. See the public DEFAULT_CONFIG property for details
    * @final
    * @static
    * @private
    * @type Object
    */
    Calendar._DEFAULT_CONFIG = Calendar.DEFAULT_CONFIG;

    var DEF_CFG = Calendar.DEFAULT_CONFIG;

    /**
    * The set of Custom Event types supported by the Calendar
    * @property YAHOO.widget.Calendar._EVENT_TYPES
    * @final
    * @static
    * @private
    * @type Object
    */
    Calendar._EVENT_TYPES = {
        BEFORE_SELECT : "beforeSelect",
        SELECT : "select",
        BEFORE_DESELECT : "beforeDeselect",
        DESELECT : "deselect",
        CHANGE_PAGE : "changePage",
        BEFORE_RENDER : "beforeRender",
        RENDER : "render",
        BEFORE_DESTROY : "beforeDestroy",
        DESTROY : "destroy",
        RESET : "reset",
        CLEAR : "clear",
        BEFORE_HIDE : "beforeHide",
        HIDE : "hide",
        BEFORE_SHOW : "beforeShow",
        SHOW : "show",
        BEFORE_HIDE_NAV : "beforeHideNav",
        HIDE_NAV : "hideNav",
        BEFORE_SHOW_NAV : "beforeShowNav",
        SHOW_NAV : "showNav",
        BEFORE_RENDER_NAV : "beforeRenderNav",
        RENDER_NAV : "renderNav"
    };

    /**
    * The set of default style constants for the Calendar
    * @property YAHOO.widget.Calendar.STYLES
    * @static
    * @type Object An object with name/value pairs for the class name identifier/value.
    */
    Calendar.STYLES = {
        CSS_ROW_HEADER: "calrowhead",
        CSS_ROW_FOOTER: "calrowfoot",
        CSS_CELL : "calcell",
        CSS_CELL_SELECTOR : "selector",
        CSS_CELL_SELECTED : "selected",
        CSS_CELL_SELECTABLE : "selectable",
        CSS_CELL_RESTRICTED : "restricted",
        CSS_CELL_TODAY : "today",
        CSS_CELL_OOM : "oom",
        CSS_CELL_OOB : "previous",
        CSS_HEADER : "calheader",
        CSS_HEADER_TEXT : "calhead",
        CSS_BODY : "calbody",
        CSS_WEEKDAY_CELL : "calweekdaycell",
        CSS_WEEKDAY_ROW : "calweekdayrow",
        CSS_FOOTER : "calfoot",
        CSS_CALENDAR : "yui-calendar",
        CSS_SINGLE : "single",
        CSS_CONTAINER : "yui-calcontainer",
        CSS_NAV_LEFT : "calnavleft",
        CSS_NAV_RIGHT : "calnavright",
        CSS_NAV : "calnav",
        CSS_CLOSE : "calclose",
        CSS_CELL_TOP : "calcelltop",
        CSS_CELL_LEFT : "calcellleft",
        CSS_CELL_RIGHT : "calcellright",
        CSS_CELL_BOTTOM : "calcellbottom",
        CSS_CELL_HOVER : "calcellhover",
        CSS_CELL_HIGHLIGHT1 : "highlight1",
        CSS_CELL_HIGHLIGHT2 : "highlight2",
        CSS_CELL_HIGHLIGHT3 : "highlight3",
        CSS_CELL_HIGHLIGHT4 : "highlight4",
        CSS_WITH_TITLE: "withtitle",
        CSS_FIXED_SIZE: "fixedsize",
        CSS_LINK_CLOSE: "link-close"
    };

    /**
    * The set of default style constants for the Calendar
    * @property YAHOO.widget.Calendar._STYLES
    * @deprecated Made public. See the public STYLES property for details
    * @final
    * @static
    * @private
    * @type Object
    */
    Calendar._STYLES = Calendar.STYLES;

    Calendar.prototype = {

        /**
        * The configuration object used to set up the calendars various locale and style options.
        * @property Config
        * @private
        * @deprecated Configuration properties should be set by calling Calendar.cfg.setProperty.
        * @type Object
        */
        Config : null,

        /**
        * The parent CalendarGroup, only to be set explicitly by the parent group
        * @property parent
        * @type CalendarGroup
        */
        parent : null,

        /**
        * The index of this item in the parent group
        * @property index
        * @type Number
        */
        index : -1,

        /**
        * The collection of calendar table cells
        * @property cells
        * @type HTMLTableCellElement[]
        */
        cells : null,

        /**
        * The collection of calendar cell dates that is parallel to the cells collection. The array contains dates field arrays in the format of [YYYY, M, D].
        * @property cellDates
        * @type Array[](Number[])
        */
        cellDates : null,

        /**
        * The id that uniquely identifies this Calendar.
        * @property id
        * @type String
        */
        id : null,

        /**
        * The unique id associated with the Calendar's container
        * @property containerId
        * @type String
        */
        containerId: null,

        /**
        * The DOM element reference that points to this calendar's container element. The calendar will be inserted into this element when the shell is rendered.
        * @property oDomContainer
        * @type HTMLElement
        */
        oDomContainer : null,

        /**
        * A Date object representing today's date.
        * @deprecated Use the "today" configuration property
        * @property today
        * @type Date
        */
        today : null,

        /**
        * The list of render functions, along with required parameters, used to render cells.
        * @property renderStack
        * @type Array[]
        */
        renderStack : null,

        /**
        * A copy of the initial render functions created before rendering.
        * @property _renderStack
        * @private
        * @type Array
        */
        _renderStack : null,

        /**
        * A reference to the CalendarNavigator instance created for this Calendar.
        * Will be null if the "navigator" configuration property has not been set
        * @property oNavigator
        * @type CalendarNavigator
        */
        oNavigator : null,

        /**
        * The private list of initially selected dates.
        * @property _selectedDates
        * @private
        * @type Array
        */
        _selectedDates : null,

        /**
        * A map of DOM event handlers to attach to cells associated with specific CSS class names
        * @property domEventMap
        * @type Object
        */
        domEventMap : null,

        /**
         * Protected helper used to parse Calendar constructor/init arguments.
         *
         * As of 2.4.0, Calendar supports a simpler constructor
         * signature. This method reconciles arguments
         * received in the pre 2.4.0 and 2.4.0 formats.
         *
         * @protected
         * @method _parseArgs
         * @param {Array} Function "arguments" array
         * @return {Object} Object with id, container, config properties containing
         * the reconciled argument values.
         **/
        _parseArgs : function(args) {
            /*
               2.4.0 Constructors signatures

               new Calendar(String)
               new Calendar(HTMLElement)
               new Calendar(String, ConfigObject)
               new Calendar(HTMLElement, ConfigObject)

               Pre 2.4.0 Constructor signatures

               new Calendar(String, String)
               new Calendar(String, HTMLElement)
               new Calendar(String, String, ConfigObject)
               new Calendar(String, HTMLElement, ConfigObject)
             */
            var nArgs = {id:null, container:null, config:null};

            if (args && args.length && args.length > 0) {
                switch (args.length) {
                    case 1:
                        nArgs.id = null;
                        nArgs.container = args[0];
                        nArgs.config = null;
                        break;
                    case 2:
                        if (Lang.isObject(args[1]) && !args[1].tagName && !(args[1] instanceof String)) {
                            nArgs.id = null;
                            nArgs.container = args[0];
                            nArgs.config = args[1];
                        } else {
                            nArgs.id = args[0];
                            nArgs.container = args[1];
                            nArgs.config = null;
                        }
                        break;
                    default: // 3+
                        nArgs.id = args[0];
                        nArgs.container = args[1];
                        nArgs.config = args[2];
                        break;
                }
            } else {
                this.logger.log("Invalid constructor/init arguments", "error");
            }
            return nArgs;
        },

        /**
        * Initializes the Calendar widget.
        * @method init
        *
        * @param {String} id optional The id of the table element that will represent the Calendar widget. As of 2.4.0, this argument is optional.
        * @param {String | HTMLElement} container The id of the container div element that will wrap the Calendar table, or a reference to a DIV element which exists in the document.
        * @param {Object} config optional The configuration object containing the initial configuration values for the Calendar.
        */
        init : function(id, container, config) {
            // Normalize 2.4.0, pre 2.4.0 args
            var nArgs = this._parseArgs(arguments);

            id = nArgs.id;
            container = nArgs.container;
            config = nArgs.config;

            this.oDomContainer = Dom.get(container);
            // Removing due to order of operations issue [ logger/id ].
            // The log is kind of pointless because it'll barf on the next statement anyway.
            // Any code related changes are beyond the scope of 2.9.0 at this point
            // if (!this.oDomContainer) { this.logger.log("Container not found in document.", "error"); }

            this._oDoc = this.oDomContainer.ownerDocument;

            if (!this.oDomContainer.id) {
                this.oDomContainer.id = Dom.generateId();
            }

            if (!id) {
                id = this.oDomContainer.id + "_t";
            }

            this.id = id;
            this.containerId = this.oDomContainer.id;

            this.logger = new YAHOO.widget.LogWriter("Calendar " + this.id);
            this.initEvents();

            /**
            * The Config object used to hold the configuration variables for the Calendar
            * @property cfg
            * @type YAHOO.util.Config
            */
            this.cfg = new YAHOO.util.Config(this);

            /**
            * The local object which contains the Calendar's options
            * @property Options
            * @type Object
            */
            this.Options = {};

            /**
            * The local object which contains the Calendar's locale settings
            * @property Locale
            * @type Object
            */
            this.Locale = {};

            this.initStyles();

            Dom.addClass(this.oDomContainer, this.Style.CSS_CONTAINER);
            Dom.addClass(this.oDomContainer, this.Style.CSS_SINGLE);

            this.cellDates = [];
            this.cells = [];
            this.renderStack = [];
            this._renderStack = [];

            this.setupConfig();

            if (config) {
                this.cfg.applyConfig(config, true);
            }

            this.cfg.fireQueue();

            this.today = this.cfg.getProperty("today");
        },

        /**
        * Default Config listener for the iframe property. If the iframe config property is set to true,
        * renders the built-in IFRAME shim if the container is relatively or absolutely positioned.
        *
        * @method configIframe
        */
        configIframe : function(type, args, obj) {
            var useIframe = args[0];

            if (!this.parent) {
                if (Dom.inDocument(this.oDomContainer)) {
                    if (useIframe) {
                        var pos = Dom.getStyle(this.oDomContainer, "position");

                        if (pos == "absolute" || pos == "relative") {

                            if (!Dom.inDocument(this.iframe)) {
                                this.iframe = document.createElement("iframe");
                                this.iframe.src = "javascript:false;";

                                Dom.setStyle(this.iframe, "opacity", "0");

                                if (YAHOO.env.ua.ie && YAHOO.env.ua.ie <= 6) {
                                    Dom.addClass(this.iframe, this.Style.CSS_FIXED_SIZE);
                                }

                                this.oDomContainer.insertBefore(this.iframe, this.oDomContainer.firstChild);
                            }
                        }
                    } else {
                        if (this.iframe) {
                            if (this.iframe.parentNode) {
                                this.iframe.parentNode.removeChild(this.iframe);
                            }
                            this.iframe = null;
                        }
                    }
                }
            }
        },

        /**
        * Default handler for the "title" property
        * @method configTitle
        */
        configTitle : function(type, args, obj) {
            var title = args[0];

            // "" disables title bar
            if (title) {
                this.createTitleBar(title);
            } else {
                var close = this.cfg.getProperty(DEF_CFG.CLOSE.key);
                if (!close) {
                    this.removeTitleBar();
                } else {
                    this.createTitleBar("&#160;");
                }
            }
        },

        /**
        * Default handler for the "close" property
        * @method configClose
        */
        configClose : function(type, args, obj) {
            var close = args[0],
                title = this.cfg.getProperty(DEF_CFG.TITLE.key);

            if (close) {
                if (!title) {
                    this.createTitleBar("&#160;");
                }
                this.createCloseButton();
            } else {
                this.removeCloseButton();
                if (!title) {
                    this.removeTitleBar();
                }
            }
        },

        /**
        * Initializes Calendar's built-in CustomEvents
        * @method initEvents
        */
        initEvents : function() {

            var defEvents = Calendar._EVENT_TYPES,
                CE = YAHOO.util.CustomEvent,
                cal = this; // To help with minification

            /**
            * Fired before a date selection is made
            * @event beforeSelectEvent
            */
            cal.beforeSelectEvent = new CE(defEvents.BEFORE_SELECT);

            /**
            * Fired when a date selection is made
            * @event selectEvent
            * @param {Array} Array of Date field arrays in the format [YYYY, MM, DD].
            */
            cal.selectEvent = new CE(defEvents.SELECT);

            /**
            * Fired before a date or set of dates is deselected
            * @event beforeDeselectEvent
            */
            cal.beforeDeselectEvent = new CE(defEvents.BEFORE_DESELECT);

            /**
            * Fired when a date or set of dates is deselected
            * @event deselectEvent
            * @param {Array} Array of Date field arrays in the format [YYYY, MM, DD].
            */
            cal.deselectEvent = new CE(defEvents.DESELECT);

            /**
            * Fired when the Calendar page is changed
            * @event changePageEvent
            * @param {Date} prevDate The date before the page was changed
            * @param {Date} newDate The date after the page was changed
            */
            cal.changePageEvent = new CE(defEvents.CHANGE_PAGE);

            /**
            * Fired before the Calendar is rendered
            * @event beforeRenderEvent
            */
            cal.beforeRenderEvent = new CE(defEvents.BEFORE_RENDER);

            /**
            * Fired when the Calendar is rendered
            * @event renderEvent
            */
            cal.renderEvent = new CE(defEvents.RENDER);

            /**
            * Fired just before the Calendar is to be destroyed
            * @event beforeDestroyEvent
            */
            cal.beforeDestroyEvent = new CE(defEvents.BEFORE_DESTROY);

            /**
            * Fired after the Calendar is destroyed. This event should be used
            * for notification only. When this event is fired, important Calendar instance
            * properties, dom references and event listeners have already been
            * removed/dereferenced, and hence the Calendar instance is not in a usable
            * state.
            *
            * @event destroyEvent
            */
            cal.destroyEvent = new CE(defEvents.DESTROY);

            /**
            * Fired when the Calendar is reset
            * @event resetEvent
            */
            cal.resetEvent = new CE(defEvents.RESET);

            /**
            * Fired when the Calendar is cleared
            * @event clearEvent
            */
            cal.clearEvent = new CE(defEvents.CLEAR);

            /**
            * Fired just before the Calendar is to be shown
            * @event beforeShowEvent
            */
            cal.beforeShowEvent = new CE(defEvents.BEFORE_SHOW);

            /**
            * Fired after the Calendar is shown
            * @event showEvent
            */
            cal.showEvent = new CE(defEvents.SHOW);

            /**
            * Fired just before the Calendar is to be hidden
            * @event beforeHideEvent
            */
            cal.beforeHideEvent = new CE(defEvents.BEFORE_HIDE);

            /**
            * Fired after the Calendar is hidden
            * @event hideEvent
            */
            cal.hideEvent = new CE(defEvents.HIDE);

            /**
            * Fired just before the CalendarNavigator is to be shown
            * @event beforeShowNavEvent
            */
            cal.beforeShowNavEvent = new CE(defEvents.BEFORE_SHOW_NAV);

            /**
            * Fired after the CalendarNavigator is shown
            * @event showNavEvent
            */
            cal.showNavEvent = new CE(defEvents.SHOW_NAV);

            /**
            * Fired just before the CalendarNavigator is to be hidden
            * @event beforeHideNavEvent
            */
            cal.beforeHideNavEvent = new CE(defEvents.BEFORE_HIDE_NAV);

            /**
            * Fired after the CalendarNavigator is hidden
            * @event hideNavEvent
            */
            cal.hideNavEvent = new CE(defEvents.HIDE_NAV);

            /**
            * Fired just before the CalendarNavigator is to be rendered
            * @event beforeRenderNavEvent
            */
            cal.beforeRenderNavEvent = new CE(defEvents.BEFORE_RENDER_NAV);

            /**
            * Fired after the CalendarNavigator is rendered
            * @event renderNavEvent
            */
            cal.renderNavEvent = new CE(defEvents.RENDER_NAV);

            cal.beforeSelectEvent.subscribe(cal.onBeforeSelect, this, true);
            cal.selectEvent.subscribe(cal.onSelect, this, true);
            cal.beforeDeselectEvent.subscribe(cal.onBeforeDeselect, this, true);
            cal.deselectEvent.subscribe(cal.onDeselect, this, true);
            cal.changePageEvent.subscribe(cal.onChangePage, this, true);
            cal.renderEvent.subscribe(cal.onRender, this, true);
            cal.resetEvent.subscribe(cal.onReset, this, true);
            cal.clearEvent.subscribe(cal.onClear, this, true);
        },

        /**
        * The default event handler for clicks on the "Previous Month" navigation UI
        *
        * @method doPreviousMonthNav
        * @param {DOMEvent} e The DOM event
        * @param {Calendar} cal A reference to the calendar
        */
        doPreviousMonthNav : function(e, cal) {
            Event.preventDefault(e);
            // previousMonth invoked in a timeout, to allow
            // event to bubble up, with correct target. Calling
            // previousMonth, will call render which will remove
            // HTML which generated the event, resulting in an
            // invalid event target in certain browsers.
            setTimeout(function() {
                cal.previousMonth();
                var navs = Dom.getElementsByClassName(cal.Style.CSS_NAV_LEFT, "a", cal.oDomContainer);
                if (navs && navs[0]) {
                    try {
                        navs[0].focus();
                    } catch (ex) {
                        // ignore
                    }
                }
            }, 0);
        },

        /**
         * The default event handler for clicks on the "Next Month" navigation UI
         *
         * @method doNextMonthNav
         * @param {DOMEvent} e The DOM event
         * @param {Calendar} cal A reference to the calendar
         */
        doNextMonthNav : function(e, cal) {
            Event.preventDefault(e);
            setTimeout(function() {
                cal.nextMonth();
                var navs = Dom.getElementsByClassName(cal.Style.CSS_NAV_RIGHT, "a", cal.oDomContainer);
                if (navs && navs[0]) {
                    try {
                        navs[0].focus();
                    } catch (ex) {
                        // ignore
                    }
                }
            }, 0);
        },

        /**
        * The default event handler for date cell selection. Currently attached to
        * the Calendar's bounding box, referenced by it's <a href="#property_oDomContainer">oDomContainer</a> property.
        *
        * @method doSelectCell
        * @param {DOMEvent} e The DOM event
        * @param {Calendar} cal A reference to the calendar
        */
        doSelectCell : function(e, cal) {
            var cell, d, date, index;

            var target = Event.getTarget(e),
                tagName = target.tagName.toLowerCase(),
                defSelector = false;

            while (tagName != "td" && !Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {

                if (!defSelector && tagName == "a" && Dom.hasClass(target, cal.Style.CSS_CELL_SELECTOR)) {
                    defSelector = true;
                }

                target = target.parentNode;
                tagName = target.tagName.toLowerCase();

                if (target == this.oDomContainer || tagName == "html") {
                    return;
                }
            }

            if (defSelector) {
                // Stop link href navigation for default renderer
                Event.preventDefault(e);
            }

            cell = target;

            if (Dom.hasClass(cell, cal.Style.CSS_CELL_SELECTABLE)) {
                index = cal.getIndexFromId(cell.id);
                if (index > -1) {
                    d = cal.cellDates[index];
                    if (d) {
                        date = DateMath.getDate(d[0],d[1]-1,d[2]);

                        var link;

                        cal.logger.log("Selecting cell " + index + " via click", "info");
                        if (cal.Options.MULTI_SELECT) {
                            link = cell.getElementsByTagName("a")[0];
                            if (link) {
                                link.blur();
                            }

                            var cellDate = cal.cellDates[index];
                            var cellDateIndex = cal._indexOfSelectedFieldArray(cellDate);

                            if (cellDateIndex > -1) {
                                cal.deselectCell(index);
                            } else {
                                cal.selectCell(index);
                            }

                        } else {
                            link = cell.getElementsByTagName("a")[0];
                            if (link) {
                                link.blur();
                            }
                            cal.selectCell(index);
                        }
                    }
                }
            }
        },

        /**
        * The event that is executed when the user hovers over a cell
        * @method doCellMouseOver
        * @param {DOMEvent} e The event
        * @param {Calendar} cal A reference to the calendar passed by the Event utility
        */
        doCellMouseOver : function(e, cal) {
            var target;
            if (e) {
                target = Event.getTarget(e);
            } else {
                target = this;
            }

            while (target.tagName && target.tagName.toLowerCase() != "td") {
                target = target.parentNode;
                if (!target.tagName || target.tagName.toLowerCase() == "html") {
                    return;
                }
            }

            if (Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {
                Dom.addClass(target, cal.Style.CSS_CELL_HOVER);
            }
        },

        /**
        * The event that is executed when the user moves the mouse out of a cell
        * @method doCellMouseOut
        * @param {DOMEvent} e The event
        * @param {Calendar} cal A reference to the calendar passed by the Event utility
        */
        doCellMouseOut : function(e, cal) {
            var target;
            if (e) {
                target = Event.getTarget(e);
            } else {
                target = this;
            }

            while (target.tagName && target.tagName.toLowerCase() != "td") {
                target = target.parentNode;
                if (!target.tagName || target.tagName.toLowerCase() == "html") {
                    return;
                }
            }

            if (Dom.hasClass(target, cal.Style.CSS_CELL_SELECTABLE)) {
                Dom.removeClass(target, cal.Style.CSS_CELL_HOVER);
            }
        },

        setupConfig : function() {

            var cfg = this.cfg;

            /**
            * The date to use to represent "Today".
            *
            * @config today
            * @type Date
            * @default The client side date (new Date()) when the Calendar is instantiated.
            */
            cfg.addProperty(DEF_CFG.TODAY.key, { value: new Date(DEF_CFG.TODAY.value.getTime()), supercedes:DEF_CFG.TODAY.supercedes, handler:this.configToday, suppressEvent:true } );

            /**
            * The month/year representing the current visible Calendar date (mm/yyyy)
            * @config pagedate
            * @type String | Date
            * @default Today's date
            */
            cfg.addProperty(DEF_CFG.PAGEDATE.key, { value: DEF_CFG.PAGEDATE.value || new Date(DEF_CFG.TODAY.value.getTime()), handler:this.configPageDate } );

            /**
            * The date or range of dates representing the current Calendar selection
            * @config selected
            * @type String
            * @default []
            */
            cfg.addProperty(DEF_CFG.SELECTED.key, { value:DEF_CFG.SELECTED.value.concat(), handler:this.configSelected } );

            /**
            * The title to display above the Calendar's month header. The title is inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config title
            * @type HTML
            * @default ""
            */
            cfg.addProperty(DEF_CFG.TITLE.key, { value:DEF_CFG.TITLE.value, handler:this.configTitle } );

            /**
            * Whether or not a close button should be displayed for this Calendar
            * @config close
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.CLOSE.key, { value:DEF_CFG.CLOSE.value, handler:this.configClose } );

            /**
            * Whether or not an iframe shim should be placed under the Calendar to prevent select boxes from bleeding through in Internet Explorer 6 and below.
            * This property is enabled by default for IE6 and below. It is disabled by default for other browsers for performance reasons, but can be
            * enabled if required.
            *
            * @config iframe
            * @type Boolean
            * @default true for IE6 and below, false for all other browsers
            */
            cfg.addProperty(DEF_CFG.IFRAME.key, { value:DEF_CFG.IFRAME.value, handler:this.configIframe, validator:cfg.checkBoolean } );

            /**
            * The minimum selectable date in the current Calendar (mm/dd/yyyy)
            * @config mindate
            * @type String | Date
            * @default null
            */
            cfg.addProperty(DEF_CFG.MINDATE.key, { value:DEF_CFG.MINDATE.value, handler:this.configMinDate } );

            /**
            * The maximum selectable date in the current Calendar (mm/dd/yyyy)
            * @config maxdate
            * @type String | Date
            * @default null
            */
            cfg.addProperty(DEF_CFG.MAXDATE.key, { value:DEF_CFG.MAXDATE.value, handler:this.configMaxDate } );

            // Options properties

            /**
            * True if the Calendar should allow multiple selections. False by default.
            * @config MULTI_SELECT
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.MULTI_SELECT.key, { value:DEF_CFG.MULTI_SELECT.value, handler:this.configOptions, validator:cfg.checkBoolean } );

            /**
            * True if the Calendar should allow selection of out-of-month dates. False by default.
            * @config OOM_SELECT
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.OOM_SELECT.key, { value:DEF_CFG.OOM_SELECT.value, handler:this.configOptions, validator:cfg.checkBoolean } );

            /**
            * The weekday the week begins on. Default is 0 (Sunday = 0, Monday = 1 ... Saturday = 6).
            * @config START_WEEKDAY
            * @type number
            * @default 0
            */
            cfg.addProperty(DEF_CFG.START_WEEKDAY.key, { value:DEF_CFG.START_WEEKDAY.value, handler:this.configOptions, validator:cfg.checkNumber  } );

            /**
            * True if the Calendar should show weekday labels. True by default.
            * @config SHOW_WEEKDAYS
            * @type Boolean
            * @default true
            */
            cfg.addProperty(DEF_CFG.SHOW_WEEKDAYS.key, { value:DEF_CFG.SHOW_WEEKDAYS.value, handler:this.configOptions, validator:cfg.checkBoolean  } );

            /**
            * True if the Calendar should show week row headers. False by default.
            * @config SHOW_WEEK_HEADER
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.SHOW_WEEK_HEADER.key, { value:DEF_CFG.SHOW_WEEK_HEADER.value, handler:this.configOptions, validator:cfg.checkBoolean } );

            /**
            * True if the Calendar should show week row footers. False by default.
            * @config SHOW_WEEK_FOOTER
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.SHOW_WEEK_FOOTER.key,{ value:DEF_CFG.SHOW_WEEK_FOOTER.value, handler:this.configOptions, validator:cfg.checkBoolean } );

            /**
            * True if the Calendar should suppress weeks that are not a part of the current month. False by default.
            * @config HIDE_BLANK_WEEKS
            * @type Boolean
            * @default false
            */
            cfg.addProperty(DEF_CFG.HIDE_BLANK_WEEKS.key, { value:DEF_CFG.HIDE_BLANK_WEEKS.value, handler:this.configOptions, validator:cfg.checkBoolean } );

            /**
            * The image URL that should be used for the left navigation arrow. The image URL is inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config NAV_ARROW_LEFT
            * @type String
            * @deprecated You can customize the image by overriding the default CSS class for the left arrow - "calnavleft"
            * @default null
            */
            cfg.addProperty(DEF_CFG.NAV_ARROW_LEFT.key, { value:DEF_CFG.NAV_ARROW_LEFT.value, handler:this.configOptions } );

            /**
            * The image URL that should be used for the right navigation arrow. The image URL is inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config NAV_ARROW_RIGHT
            * @type String
            * @deprecated You can customize the image by overriding the default CSS class for the right arrow - "calnavright"
            * @default null
            */
            cfg.addProperty(DEF_CFG.NAV_ARROW_RIGHT.key, { value:DEF_CFG.NAV_ARROW_RIGHT.value, handler:this.configOptions } );

            // Locale properties

            /**
            * The short month labels for the current locale. The month labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config MONTHS_SHORT
            * @type HTML[]
            * @default ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
            */
            cfg.addProperty(DEF_CFG.MONTHS_SHORT.key, { value:DEF_CFG.MONTHS_SHORT.value, handler:this.configLocale } );

            /**
            * The long month labels for the current locale. The month labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config MONTHS_LONG
            * @type HTML[]
            * @default ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
            */
            cfg.addProperty(DEF_CFG.MONTHS_LONG.key,  { value:DEF_CFG.MONTHS_LONG.value, handler:this.configLocale } );

            /**
            * The 1-character weekday labels for the current locale. The weekday labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config WEEKDAYS_1CHAR
            * @type HTML[]
            * @default ["S", "M", "T", "W", "T", "F", "S"]
            */
            cfg.addProperty(DEF_CFG.WEEKDAYS_1CHAR.key, { value:DEF_CFG.WEEKDAYS_1CHAR.value, handler:this.configLocale } );

            /**
            * The short weekday labels for the current locale. The weekday labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config WEEKDAYS_SHORT
            * @type HTML[]
            * @default ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"]
            */
            cfg.addProperty(DEF_CFG.WEEKDAYS_SHORT.key, { value:DEF_CFG.WEEKDAYS_SHORT.value, handler:this.configLocale } );

            /**
            * The medium weekday labels for the current locale. The weekday labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config WEEKDAYS_MEDIUM
            * @type HTML[]
            * @default ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
            */
            cfg.addProperty(DEF_CFG.WEEKDAYS_MEDIUM.key, { value:DEF_CFG.WEEKDAYS_MEDIUM.value, handler:this.configLocale } );

            /**
            * The long weekday labels for the current locale. The weekday labels are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config WEEKDAYS_LONG
            * @type HTML[]
            * @default ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
            */
            cfg.addProperty(DEF_CFG.WEEKDAYS_LONG.key, { value:DEF_CFG.WEEKDAYS_LONG.value, handler:this.configLocale } );

            /**
            * Refreshes the locale values used to build the Calendar.
            * @method refreshLocale
            * @private
            */
            var refreshLocale = function() {
                cfg.refireEvent(DEF_CFG.LOCALE_MONTHS.key);
                cfg.refireEvent(DEF_CFG.LOCALE_WEEKDAYS.key);
            };

            cfg.subscribeToConfigEvent(DEF_CFG.START_WEEKDAY.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.MONTHS_SHORT.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.MONTHS_LONG.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.WEEKDAYS_1CHAR.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.WEEKDAYS_SHORT.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.WEEKDAYS_MEDIUM.key, refreshLocale, this, true);
            cfg.subscribeToConfigEvent(DEF_CFG.WEEKDAYS_LONG.key, refreshLocale, this, true);

            /**
            * The setting that determines which length of month labels should be used. Possible values are "short" and "long".
            * @config LOCALE_MONTHS
            * @type String
            * @default "long"
            */
            cfg.addProperty(DEF_CFG.LOCALE_MONTHS.key, { value:DEF_CFG.LOCALE_MONTHS.value, handler:this.configLocaleValues } );

            /**
            * The setting that determines which length of weekday labels should be used. Possible values are "1char", "short", "medium", and "long".
            * @config LOCALE_WEEKDAYS
            * @type String
            * @default "short"
            */
            cfg.addProperty(DEF_CFG.LOCALE_WEEKDAYS.key, { value:DEF_CFG.LOCALE_WEEKDAYS.value, handler:this.configLocaleValues } );

            /**
            * The positive or negative year offset from the Gregorian calendar year (assuming a January 1st rollover) to
            * be used when displaying and parsing dates. NOTE: All JS Date objects returned by methods, or expected as input by
            * methods will always represent the Gregorian year, in order to maintain date/month/week values.
            *
            * @config YEAR_OFFSET
            * @type Number
            * @default 0
            */
            cfg.addProperty(DEF_CFG.YEAR_OFFSET.key, { value:DEF_CFG.YEAR_OFFSET.value, supercedes:DEF_CFG.YEAR_OFFSET.supercedes, handler:this.configLocale  } );

            /**
            * The value used to delimit individual dates in a date string passed to various Calendar functions.
            * @config DATE_DELIMITER
            * @type String
            * @default ","
            */
            cfg.addProperty(DEF_CFG.DATE_DELIMITER.key,  { value:DEF_CFG.DATE_DELIMITER.value, handler:this.configLocale } );

            /**
            * The value used to delimit date fields in a date string passed to various Calendar functions.
            * @config DATE_FIELD_DELIMITER
            * @type String
            * @default "/"
            */
            cfg.addProperty(DEF_CFG.DATE_FIELD_DELIMITER.key, { value:DEF_CFG.DATE_FIELD_DELIMITER.value, handler:this.configLocale } );

            /**
            * The value used to delimit date ranges in a date string passed to various Calendar functions.
            * @config DATE_RANGE_DELIMITER
            * @type String
            * @default "-"
            */
            cfg.addProperty(DEF_CFG.DATE_RANGE_DELIMITER.key, { value:DEF_CFG.DATE_RANGE_DELIMITER.value, handler:this.configLocale } );

            /**
            * The position of the month in a month/year date string
            * @config MY_MONTH_POSITION
            * @type Number
            * @default 1
            */
            cfg.addProperty(DEF_CFG.MY_MONTH_POSITION.key, { value:DEF_CFG.MY_MONTH_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the year in a month/year date string
            * @config MY_YEAR_POSITION
            * @type Number
            * @default 2
            */
            cfg.addProperty(DEF_CFG.MY_YEAR_POSITION.key, { value:DEF_CFG.MY_YEAR_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the month in a month/day date string
            * @config MD_MONTH_POSITION
            * @type Number
            * @default 1
            */
            cfg.addProperty(DEF_CFG.MD_MONTH_POSITION.key, { value:DEF_CFG.MD_MONTH_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the day in a month/year date string
            * @config MD_DAY_POSITION
            * @type Number
            * @default 2
            */
            cfg.addProperty(DEF_CFG.MD_DAY_POSITION.key,  { value:DEF_CFG.MD_DAY_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the month in a month/day/year date string
            * @config MDY_MONTH_POSITION
            * @type Number
            * @default 1
            */
            cfg.addProperty(DEF_CFG.MDY_MONTH_POSITION.key, { value:DEF_CFG.MDY_MONTH_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the day in a month/day/year date string
            * @config MDY_DAY_POSITION
            * @type Number
            * @default 2
            */
            cfg.addProperty(DEF_CFG.MDY_DAY_POSITION.key, { value:DEF_CFG.MDY_DAY_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the year in a month/day/year date string
            * @config MDY_YEAR_POSITION
            * @type Number
            * @default 3
            */
            cfg.addProperty(DEF_CFG.MDY_YEAR_POSITION.key, { value:DEF_CFG.MDY_YEAR_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the month in the month year label string used as the Calendar header
            * @config MY_LABEL_MONTH_POSITION
            * @type Number
            * @default 1
            */
            cfg.addProperty(DEF_CFG.MY_LABEL_MONTH_POSITION.key, { value:DEF_CFG.MY_LABEL_MONTH_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The position of the year in the month year label string used as the Calendar header
            * @config MY_LABEL_YEAR_POSITION
            * @type Number
            * @default 2
            */
            cfg.addProperty(DEF_CFG.MY_LABEL_YEAR_POSITION.key, { value:DEF_CFG.MY_LABEL_YEAR_POSITION.value, handler:this.configLocale, validator:cfg.checkNumber } );

            /**
            * The suffix used after the month when rendering the Calendar header. The suffix is inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config MY_LABEL_MONTH_SUFFIX
            * @type HTML
            * @default " "
            */
            cfg.addProperty(DEF_CFG.MY_LABEL_MONTH_SUFFIX.key, { value:DEF_CFG.MY_LABEL_MONTH_SUFFIX.value, handler:this.configLocale } );

            /**
            * The suffix used after the year when rendering the Calendar header. The suffix is inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            * @config MY_LABEL_YEAR_SUFFIX
            * @type HTML
            * @default ""
            */
            cfg.addProperty(DEF_CFG.MY_LABEL_YEAR_SUFFIX.key, { value:DEF_CFG.MY_LABEL_YEAR_SUFFIX.value, handler:this.configLocale } );

            /**
            * Configuration for the Month/Year CalendarNavigator UI which allows the user to jump directly to a
            * specific Month/Year without having to scroll sequentially through months.
            * <p>
            * Setting this property to null (default value) or false, will disable the CalendarNavigator UI.
            * </p>
            * <p>
            * Setting this property to true will enable the CalendarNavigatior UI with the default CalendarNavigator configuration values.
            * </p>
            * <p>
            * This property can also be set to an object literal containing configuration properties for the CalendarNavigator UI.
            * The configuration object expects the the following case-sensitive properties, with the "strings" property being a nested object.
            * Any properties which are not provided will use the default values (defined in the CalendarNavigator class).
            * </p>
            * <dl>
            * <dt>strings</dt>
            * <dd><em>Object</em> :  An object with the properties shown below, defining the string labels to use in the Navigator's UI. The strings are inserted into the DOM as HTML, and should be escaped by the implementor if coming from an external source.
            *     <dl>
            *         <dt>month</dt><dd><em>HTML</em> : The markup to use for the month label. Defaults to "Month".</dd>
            *         <dt>year</dt><dd><em>HTML</em> : The markup to use for the year label. Defaults to "Year".</dd>
            *         <dt>submit</dt><dd><em>HTML</em> : The markup to use for the submit button label. Defaults to "Okay".</dd>
            *         <dt>cancel</dt><dd><em>HTML</em> : The markup to use for the cancel button label. Defaults to "Cancel".</dd>
            *         <dt>invalidYear</dt><dd><em>HTML</em> : The markup to use for invalid year values. Defaults to "Year needs to be a number".</dd>
            *     </dl>
            * </dd>
            * <dt>monthFormat</dt><dd><em>String</em> : The month format to use. Either YAHOO.widget.Calendar.LONG, or YAHOO.widget.Calendar.SHORT. Defaults to YAHOO.widget.Calendar.LONG</dd>
            * <dt>initialFocus</dt><dd><em>String</em> : Either "year" or "month" specifying which input control should get initial focus. Defaults to "year"</dd>
            * </dl>
            * <p>E.g.</p>
            * <pre>
            * var navConfig = {
            *   strings: {
            *    month:"Calendar Month",
            *    year:"Calendar Year",
            *    submit: "Submit",
            *    cancel: "Cancel",
            *    invalidYear: "Please enter a valid year"
            *   },
            *   monthFormat: YAHOO.widget.Calendar.SHORT,
            *   initialFocus: "month"
            * }
            * </pre>
            * @config navigator
            * @type {Object|Boolean}
            * @default null
            */
            cfg.addProperty(DEF_CFG.NAV.key, { value:DEF_CFG.NAV.value, handler:this.configNavigator } );

            /**
             * The map of UI strings which the Calendar UI uses.
             *
             * @config strings
             * @type {Object}
             * @default An object with the properties shown below:
             *     <dl>
             *         <dt>previousMonth</dt><dd><em>HTML</em> : The markup to use for the "Previous Month" navigation label. Defaults to "Previous Month". The string is added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.</dd>
             *         <dt>nextMonth</dt><dd><em>HTML</em> : The markup to use for the "Next Month" navigation UI. Defaults to "Next Month". The string is added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.</dd>
             *         <dt>close</dt><dd><em>HTML</em> : The markup to use for the close button label. Defaults to "Close". The string is added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.</dd>
             *     </dl>
             */
            cfg.addProperty(DEF_CFG.STRINGS.key, {
                value:DEF_CFG.STRINGS.value,
                handler:this.configStrings,
                validator: function(val) {
                    return Lang.isObject(val);
                },
                supercedes:DEF_CFG.STRINGS.supercedes
            });
        },

        /**
        * The default handler for the "strings" property
        * @method configStrings
        */
        configStrings : function(type, args, obj) {
            var val = Lang.merge(DEF_CFG.STRINGS.value, args[0]);
            this.cfg.setProperty(DEF_CFG.STRINGS.key, val, true);
        },

        /**
        * The default handler for the "pagedate" property
        * @method configPageDate
        */
        configPageDate : function(type, args, obj) {
            this.cfg.setProperty(DEF_CFG.PAGEDATE.key, this._parsePageDate(args[0]), true);
        },

        /**
        * The default handler for the "mindate" property
        * @method configMinDate
        */
        configMinDate : function(type, args, obj) {
            var val = args[0];
            if (Lang.isString(val)) {
                val = this._parseDate(val);
                this.cfg.setProperty(DEF_CFG.MINDATE.key, DateMath.getDate(val[0],(val[1]-1),val[2]));
            }
        },

        /**
        * The default handler for the "maxdate" property
        * @method configMaxDate
        */
        configMaxDate : function(type, args, obj) {
            var val = args[0];
            if (Lang.isString(val)) {
                val = this._parseDate(val);
                this.cfg.setProperty(DEF_CFG.MAXDATE.key, DateMath.getDate(val[0],(val[1]-1),val[2]));
            }
        },

        /**
        * The default handler for the "today" property
        * @method configToday
        */
        configToday : function(type, args, obj) {
            // Only do this for initial set. Changing the today property after the initial
            // set, doesn't affect pagedate
            var val = args[0];
            if (Lang.isString(val)) {
                val = this._parseDate(val);
            }
            var today = DateMath.clearTime(val);
            if (!this.cfg.initialConfig[DEF_CFG.PAGEDATE.key]) {
                this.cfg.setProperty(DEF_CFG.PAGEDATE.key, today);
            }
            this.today = today;
            this.cfg.setProperty(DEF_CFG.TODAY.key, today, true);
        },

        /**
        * The default handler for the "selected" property
        * @method configSelected
        */
        configSelected : function(type, args, obj) {
            var selected = args[0],
                cfgSelected = DEF_CFG.SELECTED.key;

            if (selected) {
                if (Lang.isString(selected)) {
                    this.cfg.setProperty(cfgSelected, this._parseDates(selected), true);
                }
            }
            if (! this._selectedDates) {
                this._selectedDates = this.cfg.getProperty(cfgSelected);
            }
        },

        /**
        * The default handler for all configuration options properties
        * @method configOptions
        */
        configOptions : function(type, args, obj) {
            this.Options[type.toUpperCase()] = args[0];
        },

        /**
        * The default handler for all configuration locale properties
        * @method configLocale
        */
        configLocale : function(type, args, obj) {
            this.Locale[type.toUpperCase()] = args[0];

            this.cfg.refireEvent(DEF_CFG.LOCALE_MONTHS.key);
            this.cfg.refireEvent(DEF_CFG.LOCALE_WEEKDAYS.key);
        },

        /**
        * The default handler for all configuration locale field length properties
        * @method configLocaleValues
        */
        configLocaleValues : function(type, args, obj) {

            type = type.toLowerCase();

            var val = args[0],
                cfg = this.cfg,
                Locale = this.Locale;

            switch (type) {
                case DEF_CFG.LOCALE_MONTHS.key:
                    switch (val) {
                        case Calendar.SHORT:
                            Locale.LOCALE_MONTHS = cfg.getProperty(DEF_CFG.MONTHS_SHORT.key).concat();
                            break;
                        case Calendar.LONG:
                            Locale.LOCALE_MONTHS = cfg.getProperty(DEF_CFG.MONTHS_LONG.key).concat();
                            break;
                    }
                    break;
                case DEF_CFG.LOCALE_WEEKDAYS.key:
                    switch (val) {
                        case Calendar.ONE_CHAR:
                            Locale.LOCALE_WEEKDAYS = cfg.getProperty(DEF_CFG.WEEKDAYS_1CHAR.key).concat();
                            break;
                        case Calendar.SHORT:
                            Locale.LOCALE_WEEKDAYS = cfg.getProperty(DEF_CFG.WEEKDAYS_SHORT.key).concat();
                            break;
                        case Calendar.MEDIUM:
                            Locale.LOCALE_WEEKDAYS = cfg.getProperty(DEF_CFG.WEEKDAYS_MEDIUM.key).concat();
                            break;
                        case Calendar.LONG:
                            Locale.LOCALE_WEEKDAYS = cfg.getProperty(DEF_CFG.WEEKDAYS_LONG.key).concat();
                            break;
                    }

                    var START_WEEKDAY = cfg.getProperty(DEF_CFG.START_WEEKDAY.key);

                    if (START_WEEKDAY > 0) {
                        for (var w=0; w < START_WEEKDAY; ++w) {
                            Locale.LOCALE_WEEKDAYS.push(Locale.LOCALE_WEEKDAYS.shift());
                        }
                    }
                    break;
            }
        },

        /**
         * The default handler for the "navigator" property
         * @method configNavigator
         */
        configNavigator : function(type, args, obj) {
            var val = args[0];
            if (YAHOO.widget.CalendarNavigator && (val === true || Lang.isObject(val))) {
                if (!this.oNavigator) {
                    this.oNavigator = new YAHOO.widget.CalendarNavigator(this);
                    // Cleanup DOM Refs/Events before innerHTML is removed.
                    this.beforeRenderEvent.subscribe(function () {
                        if (!this.pages) {
                            this.oNavigator.erase();
                        }
                    }, this, true);
                }
            } else {
                if (this.oNavigator) {
                    this.oNavigator.destroy();
                    this.oNavigator = null;
                }
            }
        },

        /**
        * Defines the class names used by Calendar when rendering to DOM. NOTE: The class names are added to the DOM as HTML and should be escaped by the implementor if coming from an external source.
        * @method initStyles
        */
        initStyles : function() {

            var defStyle = Calendar.STYLES;

            this.Style = {
                /**
                * @property Style.CSS_ROW_HEADER
                */
                CSS_ROW_HEADER: defStyle.CSS_ROW_HEADER,
                /**
                * @property Style.CSS_ROW_FOOTER
                */
                CSS_ROW_FOOTER: defStyle.CSS_ROW_FOOTER,
                /**
                * @property Style.CSS_CELL
                */
                CSS_CELL : defStyle.CSS_CELL,
                /**
                * @property Style.CSS_CELL_SELECTOR
                */
                CSS_CELL_SELECTOR : defStyle.CSS_CELL_SELECTOR,
                /**
                * @property Style.CSS_CELL_SELECTED
                */
                CSS_CELL_SELECTED : defStyle.CSS_CELL_SELECTED,
                /**
                * @property Style.CSS_CELL_SELECTABLE
                */
                CSS_CELL_SELECTABLE : defStyle.CSS_CELL_SELECTABLE,
                /**
                * @property Style.CSS_CELL_RESTRICTED
                */
                CSS_CELL_RESTRICTED : defStyle.CSS_CELL_RESTRICTED,
                /**
                * @property Style.CSS_CELL_TODAY
                */
                CSS_CELL_TODAY : defStyle.CSS_CELL_TODAY,
                /**
                * @property Style.CSS_CELL_OOM
                */
                CSS_CELL_OOM : defStyle.CSS_CELL_OOM,
                /**
                * @property Style.CSS_CELL_OOB
                */
                CSS_CELL_OOB : defStyle.CSS_CELL_OOB,
                /**
                * @property Style.CSS_HEADER
                */
                CSS_HEADER : defStyle.CSS_HEADER,
                /**
                * @property Style.CSS_HEADER_TEXT
                */
                CSS_HEADER_TEXT : defStyle.CSS_HEADER_TEXT,
                /**
                * @property Style.CSS_BODY
                */
                CSS_BODY : defStyle.CSS_BODY,
                /**
                * @property Style.CSS_WEEKDAY_CELL
                */
                CSS_WEEKDAY_CELL : defStyle.CSS_WEEKDAY_CELL,
                /**
                * @property Style.CSS_WEEKDAY_ROW
                */
                CSS_WEEKDAY_ROW : defStyle.CSS_WEEKDAY_ROW,
                /**
                * @property Style.CSS_FOOTER
                */
                CSS_FOOTER : defStyle.CSS_FOOTER,
                /**
                * @property Style.CSS_CALENDAR
                */
                CSS_CALENDAR : defStyle.CSS_CALENDAR,
                /**
                * @property Style.CSS_SINGLE
                */
                CSS_SINGLE : defStyle.CSS_SINGLE,
                /**
                * @property Style.CSS_CONTAINER
                */
                CSS_CONTAINER : defStyle.CSS_CONTAINER,
                /**
                * @property Style.CSS_NAV_LEFT
                */
                CSS_NAV_LEFT : defStyle.CSS_NAV_LEFT,
                /**
                * @property Style.CSS_NAV_RIGHT
                */
                CSS_NAV_RIGHT : defStyle.CSS_NAV_RIGHT,
                /**
                * @property Style.CSS_NAV
                */
                CSS_NAV : defStyle.CSS_NAV,
                /**
                * @property Style.CSS_CLOSE
                */
                CSS_CLOSE : defStyle.CSS_CLOSE,
                /**
                * @property Style.CSS_CELL_TOP
                */
                CSS_CELL_TOP : defStyle.CSS_CELL_TOP,
                /**
                * @property Style.CSS_CELL_LEFT
                */
                CSS_CELL_LEFT : defStyle.CSS_CELL_LEFT,
                /**
                * @property Style.CSS_CELL_RIGHT
                */
                CSS_CELL_RIGHT : defStyle.CSS_CELL_RIGHT,
                /**
                * @property Style.CSS_CELL_BOTTOM
                */
                CSS_CELL_BOTTOM : defStyle.CSS_CELL_BOTTOM,
                /**
                * @property Style.CSS_CELL_HOVER
                */
                CSS_CELL_HOVER : defStyle.CSS_CELL_HOVER,
                /**
                * @property Style.CSS_CELL_HIGHLIGHT1
                */
                CSS_CELL_HIGHLIGHT1 : defStyle.CSS_CELL_HIGHLIGHT1,
                /**
                * @property Style.CSS_CELL_HIGHLIGHT2
                */
                CSS_CELL_HIGHLIGHT2 : defStyle.CSS_CELL_HIGHLIGHT2,
                /**
                * @property Style.CSS_CELL_HIGHLIGHT3
                */
                CSS_CELL_HIGHLIGHT3 : defStyle.CSS_CELL_HIGHLIGHT3,
                /**
                * @property Style.CSS_CELL_HIGHLIGHT4
                */
                CSS_CELL_HIGHLIGHT4 : defStyle.CSS_CELL_HIGHLIGHT4,
                /**
                 * @property Style.CSS_WITH_TITLE
                 */
                CSS_WITH_TITLE : defStyle.CSS_WITH_TITLE,
                 /**
                 * @property Style.CSS_FIXED_SIZE
                 */
                CSS_FIXED_SIZE : defStyle.CSS_FIXED_SIZE,
                 /**
                 * @property Style.CSS_LINK_CLOSE
                 */
                CSS_LINK_CLOSE : defStyle.CSS_LINK_CLOSE
            };
        },

        /**
        * Builds the date label that will be displayed in the calendar header or
        * footer, depending on configuration.
        * @method buildMonthLabel
        * @return {HTML} The formatted calendar month label
        */
        buildMonthLabel : function() {
            return this._buildMonthLabel(this.cfg.getProperty(DEF_CFG.PAGEDATE.key));
        },

        /**
         * Helper method, to format a Month Year string, given a JavaScript Date, based on the
         * Calendar localization settings
         *
         * @method _buildMonthLabel
         * @private
         * @param {Date} date
         * @return {HTML} Formated month, year string
         */
        _buildMonthLabel : function(date) {
            var monthLabel  = this.Locale.LOCALE_MONTHS[date.getMonth()] + this.Locale.MY_LABEL_MONTH_SUFFIX,
                yearLabel = (date.getFullYear() + this.Locale.YEAR_OFFSET) + this.Locale.MY_LABEL_YEAR_SUFFIX;

            if (this.Locale.MY_LABEL_MONTH_POSITION == 2 || this.Locale.MY_LABEL_YEAR_POSITION == 1) {
                return yearLabel + monthLabel;
            } else {
                return monthLabel + yearLabel;
            }
        },

        /**
        * Builds the date digit that will be displayed in calendar cells
        * @method buildDayLabel
        * @param {Date} workingDate The current working date
        * @return {Number} The day
        */
        buildDayLabel : function(workingDate) {
            return workingDate.getDate();
        },

        /**
         * Creates the title bar element and adds it to Calendar container DIV. NOTE: The title parameter passed into this method is added to the DOM as HTML and should be escaped by the implementor if coming from an external source.
         *
         * @method createTitleBar
         * @param {HTML} strTitle The title to display in the title bar
         * @return The title bar element
         */
        createTitleBar : function(strTitle) {
            var tDiv = Dom.getElementsByClassName(YAHOO.widget.CalendarGroup.CSS_2UPTITLE, "div", this.oDomContainer)[0] || document.createElement("div");
            tDiv.className = YAHOO.widget.CalendarGroup.CSS_2UPTITLE;
            tDiv.innerHTML = strTitle;
            this.oDomContainer.insertBefore(tDiv, this.oDomContainer.firstChild);

            Dom.addClass(this.oDomContainer, this.Style.CSS_WITH_TITLE);

            return tDiv;
        },

        /**
         * Removes the title bar element from the DOM
         *
         * @method removeTitleBar
         */
        removeTitleBar : function() {
            var tDiv = Dom.getElementsByClassName(YAHOO.widget.CalendarGroup.CSS_2UPTITLE, "div", this.oDomContainer)[0] || null;
            if (tDiv) {
                Event.purgeElement(tDiv);
                this.oDomContainer.removeChild(tDiv);
            }
            Dom.removeClass(this.oDomContainer, this.Style.CSS_WITH_TITLE);
        },

        /**
         * Creates the close button HTML element and adds it to Calendar container DIV
         *
         * @method createCloseButton
         * @return {HTMLElement} The close HTML element created
         */
        createCloseButton : function() {
            var cssClose = YAHOO.widget.CalendarGroup.CSS_2UPCLOSE,
                cssLinkClose = this.Style.CSS_LINK_CLOSE,
                DEPR_CLOSE_PATH = "us/my/bn/x_d.gif",

                lnk = Dom.getElementsByClassName(cssLinkClose, "a", this.oDomContainer)[0],
                strings = this.cfg.getProperty(DEF_CFG.STRINGS.key),
                closeStr = (strings && strings.close) ? strings.close : "";

            if (!lnk) {
                lnk = document.createElement("a");
                Event.addListener(lnk, "click", function(e, cal) {
                    cal.hide();
                    Event.preventDefault(e);
                }, this);
            }

            lnk.href = "#";
            lnk.className = cssLinkClose;

            if (Calendar.IMG_ROOT !== null) {
                var img = Dom.getElementsByClassName(cssClose, "img", lnk)[0] || document.createElement("img");
                img.src = Calendar.IMG_ROOT + DEPR_CLOSE_PATH;
                img.className = cssClose;
                lnk.appendChild(img);
            } else {
                lnk.innerHTML = '<span class="' + cssClose + ' ' + this.Style.CSS_CLOSE + '">' + closeStr + '</span>';
            }
            this.oDomContainer.appendChild(lnk);

            return lnk;
        },

        /**
         * Removes the close button HTML element from the DOM
         *
         * @method removeCloseButton
         */
        removeCloseButton : function() {
            var btn = Dom.getElementsByClassName(this.Style.CSS_LINK_CLOSE, "a", this.oDomContainer)[0] || null;
            if (btn) {
                Event.purgeElement(btn);
                this.oDomContainer.removeChild(btn);
            }
        },

        /**
        * Renders the calendar header. NOTE: The contents of the array passed into this method are added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.
        * @method renderHeader
        * @param {HTML[]} html The current working HTML array
        * @return {HTML[]} The current working HTML array
        */
        renderHeader : function(html) {

            this.logger.log("Rendering header", "render");

            var colSpan = 7,
                DEPR_NAV_LEFT = "us/tr/callt.gif",
                DEPR_NAV_RIGHT = "us/tr/calrt.gif",
                cfg = this.cfg,
                pageDate = cfg.getProperty(DEF_CFG.PAGEDATE.key),
                strings= cfg.getProperty(DEF_CFG.STRINGS.key),
                prevStr = (strings && strings.previousMonth) ?  strings.previousMonth : "",
                nextStr = (strings && strings.nextMonth) ? strings.nextMonth : "",
                monthLabel;

            if (cfg.getProperty(DEF_CFG.SHOW_WEEK_HEADER.key)) {
                colSpan += 1;
            }

            if (cfg.getProperty(DEF_CFG.SHOW_WEEK_FOOTER.key)) {
                colSpan += 1;
            }

            html[html.length] = "<thead>";
            html[html.length] =  "<tr>";
            html[html.length] =   '<th colspan="' + colSpan + '" class="' + this.Style.CSS_HEADER_TEXT + '">';
            html[html.length] =    '<div class="' + this.Style.CSS_HEADER + '">';

            var renderLeft, renderRight = false;

            if (this.parent) {
                if (this.index === 0) {
                    renderLeft = true;
                }
                if (this.index == (this.parent.cfg.getProperty("pages") -1)) {
                    renderRight = true;
                }
            } else {
                renderLeft = true;
                renderRight = true;
            }

            if (renderLeft) {
                monthLabel  = this._buildMonthLabel(DateMath.subtract(pageDate, DateMath.MONTH, 1));

                var leftArrow = cfg.getProperty(DEF_CFG.NAV_ARROW_LEFT.key);
                // Check for deprecated customization - If someone set IMG_ROOT, but didn't set NAV_ARROW_LEFT, then set NAV_ARROW_LEFT to the old deprecated value
                if (leftArrow === null && Calendar.IMG_ROOT !== null) {
                    leftArrow = Calendar.IMG_ROOT + DEPR_NAV_LEFT;
                }
                var leftStyle = (leftArrow === null) ? "" : ' style="background-image:url(' + leftArrow + ')"';
                html[html.length] = '<a class="' + this.Style.CSS_NAV_LEFT + '"' + leftStyle + ' href="#">' + prevStr + ' (' + monthLabel + ')' + '</a>';
            }

            var lbl = this.buildMonthLabel();
            var cal = this.parent || this;
            if (cal.cfg.getProperty("navigator")) {
                lbl = "<a class=\"" + this.Style.CSS_NAV + "\" href=\"#\">" + lbl + "</a>";
            }
            html[html.length] = lbl;

            if (renderRight) {
                monthLabel  = this._buildMonthLabel(DateMath.add(pageDate, DateMath.MONTH, 1));

                var rightArrow = cfg.getProperty(DEF_CFG.NAV_ARROW_RIGHT.key);
                if (rightArrow === null && Calendar.IMG_ROOT !== null) {
                    rightArrow = Calendar.IMG_ROOT + DEPR_NAV_RIGHT;
                }
                var rightStyle = (rightArrow === null) ? "" : ' style="background-image:url(' + rightArrow + ')"';
                html[html.length] = '<a class="' + this.Style.CSS_NAV_RIGHT + '"' + rightStyle + ' href="#">' + nextStr + ' (' + monthLabel + ')' + '</a>';
            }

            html[html.length] = '</div>\n</th>\n</tr>';

            if (cfg.getProperty(DEF_CFG.SHOW_WEEKDAYS.key)) {
                html = this.buildWeekdays(html);
            }

            html[html.length] = '</thead>';

            return html;
        },

        /**
        * Renders the Calendar's weekday headers. NOTE: The contents of the array passed into this method are added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.
        * @method buildWeekdays
        * @param {HTML[]} html The current working HTML array
        * @return {HTML[]} The current working HTML array
        */
        buildWeekdays : function(html) {

            html[html.length] = '<tr class="' + this.Style.CSS_WEEKDAY_ROW + '">';

            if (this.cfg.getProperty(DEF_CFG.SHOW_WEEK_HEADER.key)) {
                html[html.length] = '<th>&#160;</th>';
            }

            for(var i=0;i < this.Locale.LOCALE_WEEKDAYS.length; ++i) {
                html[html.length] = '<th class="' + this.Style.CSS_WEEKDAY_CELL + '">' + this.Locale.LOCALE_WEEKDAYS[i] + '</th>';
            }

            if (this.cfg.getProperty(DEF_CFG.SHOW_WEEK_FOOTER.key)) {
                html[html.length] = '<th>&#160;</th>';
            }

            html[html.length] = '</tr>';

            return html;
        },

        /**
        * Renders the calendar body. NOTE: The contents of the array passed into this method are added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.
        * @method renderBody
        * @param {Date} workingDate The current working Date being used for the render process
        * @param {HTML[]} html The current working HTML array
        * @return {HTML[]} The current working HTML array
        */
        renderBody : function(workingDate, html) {
            this.logger.log("Rendering body", "render");

            var startDay = this.cfg.getProperty(DEF_CFG.START_WEEKDAY.key);

            this.preMonthDays = workingDate.getDay();
            if (startDay > 0) {
                this.preMonthDays -= startDay;
            }
            if (this.preMonthDays < 0) {
                this.preMonthDays += 7;
            }

            this.monthDays = DateMath.findMonthEnd(workingDate).getDate();
            this.postMonthDays = Calendar.DISPLAY_DAYS-this.preMonthDays-this.monthDays;

            this.logger.log(this.preMonthDays + " preciding out-of-month days", "render");
            this.logger.log(this.monthDays + " month days", "render");
            this.logger.log(this.postMonthDays + " post-month days", "render");

            workingDate = DateMath.subtract(workingDate, DateMath.DAY, this.preMonthDays);
            this.logger.log("Calendar page starts on " + workingDate, "render");

            var weekNum,
                weekClass,
                weekPrefix = "w",
                cellPrefix = "_cell",
                workingDayPrefix = "wd",
                dayPrefix = "d",
                cellRenderers,
                renderer,
                t = this.today,
                cfg = this.cfg,
                oom,
                todayYear = t.getFullYear(),
                todayMonth = t.getMonth(),
                todayDate = t.getDate(),
                useDate = cfg.getProperty(DEF_CFG.PAGEDATE.key),
                hideBlankWeeks = cfg.getProperty(DEF_CFG.HIDE_BLANK_WEEKS.key),
                showWeekFooter = cfg.getProperty(DEF_CFG.SHOW_WEEK_FOOTER.key),
                showWeekHeader = cfg.getProperty(DEF_CFG.SHOW_WEEK_HEADER.key),
                oomSelect = cfg.getProperty(DEF_CFG.OOM_SELECT.key),
                mindate = cfg.getProperty(DEF_CFG.MINDATE.key),
                maxdate = cfg.getProperty(DEF_CFG.MAXDATE.key),
                yearOffset = this.Locale.YEAR_OFFSET;

            if (mindate) {
                mindate = DateMath.clearTime(mindate);
            }
            if (maxdate) {
                maxdate = DateMath.clearTime(maxdate);
            }

            html[html.length] = '<tbody class="m' + (useDate.getMonth()+1) + ' ' + this.Style.CSS_BODY + '">';

            var i = 0,
                tempDiv = document.createElement("div"),
                cell = document.createElement("td");

            tempDiv.appendChild(cell);

            var cal = this.parent || this;

            for (var r = 0; r < 6; r++) {
                weekNum = DateMath.getWeekNumber(workingDate, startDay);
                weekClass = weekPrefix + weekNum;

                // Local OOM check for performance, since we already have pagedate
                if (r !== 0 && hideBlankWeeks === true && workingDate.getMonth() != useDate.getMonth()) {
                    break;
                } else {
                    html[html.length] = '<tr class="' + weekClass + '">';

                    if (showWeekHeader) { html = this.renderRowHeader(weekNum, html); }

                    for (var d=0; d < 7; d++){ // Render actual days

                        cellRenderers = [];

                        this.clearElement(cell);
                        cell.className = this.Style.CSS_CELL;
                        cell.id = this.id + cellPrefix + i;
                        this.logger.log("Rendering cell " + cell.id + " (" + workingDate.getFullYear() + yearOffset + "-" + (workingDate.getMonth()+1) + "-" + workingDate.getDate() + ")", "cellrender");

                        if (workingDate.getDate()  == todayDate &&
                            workingDate.getMonth()  == todayMonth &&
                            workingDate.getFullYear() == todayYear) {
                            cellRenderers[cellRenderers.length]=cal.renderCellStyleToday;
                        }

                        var workingArray = [workingDate.getFullYear(),workingDate.getMonth()+1,workingDate.getDate()];
                        this.cellDates[this.cellDates.length] = workingArray; // Add this date to cellDates

                        // Local OOM check for performance, since we already have pagedate
                        oom = workingDate.getMonth() != useDate.getMonth();
                        if (oom && !oomSelect) {
                            cellRenderers[cellRenderers.length]=cal.renderCellNotThisMonth;
                        } else {
                            Dom.addClass(cell, workingDayPrefix + workingDate.getDay());
                            Dom.addClass(cell, dayPrefix + workingDate.getDate());

                            // Concat, so that we're not splicing from an array
                            // which we're also iterating
                            var rs = this.renderStack.concat();

                            for (var s=0, l = rs.length; s < l; ++s) {

                                renderer = null;

                                var rArray = rs[s],
                                    type = rArray[0],
                                    month,
                                    day,
                                    year;

                                switch (type) {
                                    case Calendar.DATE:
                                        month = rArray[1][1];
                                        day = rArray[1][2];
                                        year = rArray[1][0];

                                        if (workingDate.getMonth()+1 == month && workingDate.getDate() == day && workingDate.getFullYear() == year) {
                                            renderer = rArray[2];
                                            this.renderStack.splice(s,1);
                                        }

                                        break;
                                    case Calendar.MONTH_DAY:
                                        month = rArray[1][0];
                                        day = rArray[1][1];

                                        if (workingDate.getMonth()+1 == month && workingDate.getDate() == day) {
                                            renderer = rArray[2];
                                            this.renderStack.splice(s,1);
                                        }
                                        break;
                                    case Calendar.RANGE:
                                        var date1 = rArray[1][0],
                                            date2 = rArray[1][1],
                                            d1month = date1[1],
                                            d1day = date1[2],
                                            d1year = date1[0],
                                            d1 = DateMath.getDate(d1year, d1month-1, d1day),
                                            d2month = date2[1],
                                            d2day = date2[2],
                                            d2year = date2[0],
                                            d2 = DateMath.getDate(d2year, d2month-1, d2day);

                                        if (workingDate.getTime() >= d1.getTime() && workingDate.getTime() <= d2.getTime()) {
                                            renderer = rArray[2];

                                            if (workingDate.getTime()==d2.getTime()) {
                                                this.renderStack.splice(s,1);
                                            }
                                        }
                                        break;
                                    case Calendar.WEEKDAY:
                                        var weekday = rArray[1][0];
                                        if (workingDate.getDay()+1 == weekday) {
                                            renderer = rArray[2];
                                        }
                                        break;
                                    case Calendar.MONTH:
                                        month = rArray[1][0];
                                        if (workingDate.getMonth()+1 == month) {
                                            renderer = rArray[2];
                                        }
                                        break;
                                }

                                if (renderer) {
                                    cellRenderers[cellRenderers.length]=renderer;
                                }
                            }

                        }

                        if (this._indexOfSelectedFieldArray(workingArray) > -1) {
                            cellRenderers[cellRenderers.length]=cal.renderCellStyleSelected;
                        }

                        if (oom) {
                            cellRenderers[cellRenderers.length] = cal.styleCellNotThisMonth;
                        }

                        if ((mindate && (workingDate.getTime() < mindate.getTime())) || (maxdate && (workingDate.getTime() > maxdate.getTime()))) {
                            cellRenderers[cellRenderers.length] = cal.renderOutOfBoundsDate;
                        } else {
                            cellRenderers[cellRenderers.length] = cal.styleCellDefault;
                            cellRenderers[cellRenderers.length] = cal.renderCellDefault;
                        }

                        for (var x=0; x < cellRenderers.length; ++x) {
                            this.logger.log("renderer[" + x + "] for (" + workingDate.getFullYear() + yearOffset + "-" + (workingDate.getMonth()+1) + "-" + workingDate.getDate() + ")", "cellrender");
                            if (cellRenderers[x].call(cal, workingDate, cell) == Calendar.STOP_RENDER) {
                                break;
                            }
                        }

                        workingDate.setTime(workingDate.getTime() + DateMath.ONE_DAY_MS);
                        // Just in case we crossed DST/Summertime boundaries
                        workingDate = DateMath.clearTime(workingDate);

                        if (i >= 0 && i <= 6) {
                            Dom.addClass(cell, this.Style.CSS_CELL_TOP);
                        }
                        if ((i % 7) === 0) {
                            Dom.addClass(cell, this.Style.CSS_CELL_LEFT);
                        }
                        if (((i+1) % 7) === 0) {
                            Dom.addClass(cell, this.Style.CSS_CELL_RIGHT);
                        }

                        var postDays = this.postMonthDays;
                        if (hideBlankWeeks && postDays >= 7) {
                            var blankWeeks = Math.floor(postDays/7);
                            for (var p=0;p<blankWeeks;++p) {
                                postDays -= 7;
                            }
                        }

                        if (i >= ((this.preMonthDays+postDays+this.monthDays)-7)) {
                            Dom.addClass(cell, this.Style.CSS_CELL_BOTTOM);
                        }

                        html[html.length] = tempDiv.innerHTML;
                        i++;
                    }

                    if (showWeekFooter) { html = this.renderRowFooter(weekNum, html); }

                    html[html.length] = '</tr>';
                }
            }

            html[html.length] = '</tbody>';

            return html;
        },

        /**
        * Renders the calendar footer. In the default implementation, there is no footer. NOTE: The contents of the array passed into this method are added to the DOM as HTML, and should be escaped by the implementor if coming from an external source.
        * @method renderFooter
        * @param {HTML[]} html The current working HTML array
        * @return {HTML[]} The current working HTML array
        */
        renderFooter : function(html) { return html; },

        /**
        * Renders the calendar after it has been configured. The render() method has a specific call chain that will execute
        * when the method is called: renderHeader, renderBody, renderFooter.
        * Refer to the documentation for those methods for information on individual render tasks.
        * @method render
        */
        render : function() {
            this.beforeRenderEvent.fire();

            // Find starting day of the current month
            var workingDate = DateMath.findMonthStart(this.cfg.getProperty(DEF_CFG.PAGEDATE.key));

            this.resetRenderers();
            this.cellDates.length = 0;

            Event.purgeElement(this.oDomContainer, true);

            var html = [],
                table;

            html[html.length] = '<table cellSpacing="0" class="' + this.Style.CSS_CALENDAR + ' y' + (workingDate.getFullYear() + this.Locale.YEAR_OFFSET) +'" id="' + this.id + '">';
            html = this.renderHeader(html);
            html = this.renderBody(workingDate, html);
            html = this.renderFooter(html);
            html[html.length] = '</table>';

            this.oDomContainer.innerHTML = html.join("\n");

            this.applyListeners();

            // Using oDomContainer.ownerDocument, to allow for cross-frame rendering
            table = ((this._oDoc) && this._oDoc.getElementById(this.id)) || (this.id);

            this.cells = Dom.getElementsByClassName(this.Style.CSS_CELL, "td", table);

            this.cfg.refireEvent(DEF_CFG.TITLE.key);
            this.cfg.refireEvent(DEF_CFG.CLOSE.key);
            this.cfg.refireEvent(DEF_CFG.IFRAME.key);

            this.renderEvent.fire();
        },

        /**
        * Applies the Calendar's DOM listeners to applicable elements.
        * @method applyListeners
        */
        applyListeners : function() {
            var root = this.oDomContainer,
                cal = this.parent || this,
                anchor = "a",
                click = "click";

            var linkLeft = Dom.getElementsByClassName(this.Style.CSS_NAV_LEFT, anchor, root),
                linkRight = Dom.getElementsByClassName(this.Style.CSS_NAV_RIGHT, anchor, root);

            if (linkLeft && linkLeft.length > 0) {
                this.linkLeft = linkLeft[0];
                Event.addListener(this.linkLeft, click, this.doPreviousMonthNav, cal, true);
            }

            if (linkRight && linkRight.length > 0) {
                this.linkRight = linkRight[0];
                Event.addListener(this.linkRight, click, this.doNextMonthNav, cal, true);
            }

            if (cal.cfg.getProperty("navigator") !== null) {
                this.applyNavListeners();
            }

            if (this.domEventMap) {
                var el,elements;
                for (var cls in this.domEventMap) {
                    if (Lang.hasOwnProperty(this.domEventMap, cls)) {
                        var items = this.domEventMap[cls];

                        if (! (items instanceof Array)) {
                            items = [items];
                        }

                        for (var i=0;i<items.length;i++) {
                            var item = items[i];
                            elements = Dom.getElementsByClassName(cls, item.tag, this.oDomContainer);

                            for (var c=0;c<elements.length;c++) {
                                el = elements[c];
                                 Event.addListener(el, item.event, item.handler, item.scope, item.correct );
                            }
                        }
                    }
                }
            }

            Event.addListener(this.oDomContainer, "click", this.doSelectCell, this);
            Event.addListener(this.oDomContainer, "mouseover", this.doCellMouseOver, this);
            Event.addListener(this.oDomContainer, "mouseout", this.doCellMouseOut, this);
        },

        /**
        * Applies the DOM listeners to activate the Calendar Navigator.
        * @method applyNavListeners
        */
        applyNavListeners : function() {
            var calParent = this.parent || this,
                cal = this,
                navBtns = Dom.getElementsByClassName(this.Style.CSS_NAV, "a", this.oDomContainer);

            if (navBtns.length > 0) {

                Event.addListener(navBtns, "click", function (e, obj) {
                    var target = Event.getTarget(e);
                    // this == navBtn
                    if (this === target || Dom.isAncestor(this, target)) {
                        Event.preventDefault(e);
                    }
                    var navigator = calParent.oNavigator;
                    if (navigator) {
                        var pgdate = cal.cfg.getProperty("pagedate");
                        navigator.setYear(pgdate.getFullYear() + cal.Locale.YEAR_OFFSET);
                        navigator.setMonth(pgdate.getMonth());
                        navigator.show();
                    }
                });
            }
        },

        /**
        * Retrieves the Date object for the specified Calendar cell
        * @method getDateByCellId
        * @param {String} id The id of the cell
        * @return {Date} The Date object for the specified Calendar cell
        */
        getDateByCellId : function(id) {
            var date = this.getDateFieldsByCellId(id);
            return (date) ? DateMath.getDate(date[0],date[1]-1,date[2]) : null;
        },

        /**
        * Retrieves the Date object for the specified Calendar cell
        * @method getDateFieldsByCellId
        * @param {String} id The id of the cell
        * @return {Array} The array of Date fields for the specified Calendar cell
        */
        getDateFieldsByCellId : function(id) {
            id = this.getIndexFromId(id);
            return (id > -1) ? this.cellDates[id] : null;
        },

        /**
         * Find the Calendar's cell index for a given date.
         * If the date is not found, the method returns -1.
         * <p>
         * The returned index can be used to lookup the cell HTMLElement
         * using the Calendar's cells array or passed to selectCell to select
         * cells by index.
         * </p>
         *
         * See <a href="#cells">cells</a>, <a href="#selectCell">selectCell</a>.
         *
         * @method getCellIndex
         * @param {Date} date JavaScript Date object, for which to find a cell index.
         * @return {Number} The index of the date in Calendars cellDates/cells arrays, or -1 if the date
         * is not on the curently rendered Calendar page.
         */
        getCellIndex : function(date) {
            var idx = -1;
            if (date) {
                var m = date.getMonth(),
                    y = date.getFullYear(),
                    d = date.getDate(),
                    dates = this.cellDates;

                for (var i = 0; i < dates.length; ++i) {
                    var cellDate = dates[i];
                    if (cellDate[0] === y && cellDate[1] === m+1 && cellDate[2] === d) {
                        idx = i;
                        break;
                    }
                }
            }
            return idx;
        },

        /**
         * Given the id used to mark each Calendar cell, this method
         * extracts the index number from the id.
         *
         * @param {String} strId The cell id
         * @return {Number} The index of the cell, or -1 if id does not contain an index number
         */
        getIndexFromId : function(strId) {
            var idx = -1,
                li = strId.lastIndexOf("_cell");

            if (li > -1) {
                idx = parseInt(strId.substring(li + 5), 10);
            }

            return idx;
        },

        // BEGIN BUILT-IN TABLE CELL RENDERERS

        /**
        * Renders a cell that falls before the minimum date or after the maximum date.
        * @method renderOutOfBoundsDate
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        * @return {String} YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering
        *   should not be terminated
        */
        renderOutOfBoundsDate : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_OOB);
            cell.innerHTML = workingDate.getDate();
            return Calendar.STOP_RENDER;
        },

        /**
        * Renders the row header HTML for a week.
        *
        * @method renderRowHeader
        * @param {Number} weekNum The week number of the current row
        * @param {HTML[]} cell The current working HTML array
        */
        renderRowHeader : function(weekNum, html) {
            html[html.length] = '<th class="' + this.Style.CSS_ROW_HEADER + '">' + weekNum + '</th>';
            return html;
        },

        /**
        * Renders the row footer HTML for a week.
        *
        * @method renderRowFooter
        * @param {Number} weekNum The week number of the current row
        * @param {HTML[]} cell The current working HTML array
        */
        renderRowFooter : function(weekNum, html) {
            html[html.length] = '<th class="' + this.Style.CSS_ROW_FOOTER + '">' + weekNum + '</th>';
            return html;
        },

        /**
        * Renders a single standard calendar cell in the calendar widget table.
        *
        * All logic for determining how a standard default cell will be rendered is
        * encapsulated in this method, and must be accounted for when extending the
        * widget class.
        *
        * @method renderCellDefault
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellDefault : function(workingDate, cell) {
            cell.innerHTML = '<a href="#" class="' + this.Style.CSS_CELL_SELECTOR + '">' + this.buildDayLabel(workingDate) + "</a>";
        },

        /**
        * Styles a selectable cell.
        * @method styleCellDefault
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        styleCellDefault : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_SELECTABLE);
        },

        /**
        * Renders a single standard calendar cell using the CSS hightlight1 style
        * @method renderCellStyleHighlight1
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellStyleHighlight1 : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_HIGHLIGHT1);
        },

        /**
        * Renders a single standard calendar cell using the CSS hightlight2 style
        * @method renderCellStyleHighlight2
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellStyleHighlight2 : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_HIGHLIGHT2);
        },

        /**
        * Renders a single standard calendar cell using the CSS hightlight3 style
        * @method renderCellStyleHighlight3
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellStyleHighlight3 : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_HIGHLIGHT3);
        },

        /**
        * Renders a single standard calendar cell using the CSS hightlight4 style
        * @method renderCellStyleHighlight4
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellStyleHighlight4 : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_HIGHLIGHT4);
        },

        /**
        * Applies the default style used for rendering today's date to the current calendar cell
        * @method renderCellStyleToday
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        */
        renderCellStyleToday : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_TODAY);
        },

        /**
        * Applies the default style used for rendering selected dates to the current calendar cell
        * @method renderCellStyleSelected
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        * @return {String} YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering
        *   should not be terminated
        */
        renderCellStyleSelected : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL_SELECTED);
        },

        /**
        * Applies the default style used for rendering dates that are not a part of the current
        * month (preceding or trailing the cells for the current month)
        *
        * @method renderCellNotThisMonth
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        * @return {String} YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering
        *   should not be terminated
        */
        renderCellNotThisMonth : function(workingDate, cell) {
            this.styleCellNotThisMonth(workingDate, cell);
            cell.innerHTML=workingDate.getDate();
            return Calendar.STOP_RENDER;
        },

        /** Applies the style used for rendering out-of-month dates to the current calendar cell
        * @method styleCellNotThisMonth
        * @param {Date}                 workingDate     The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell            The current working cell in the calendar
        */
        styleCellNotThisMonth : function(workingDate, cell) {
            YAHOO.util.Dom.addClass(cell, this.Style.CSS_CELL_OOM);
        },

        /**
        * Renders the current calendar cell as a non-selectable "black-out" date using the default
        * restricted style.
        * @method renderBodyCellRestricted
        * @param {Date}     workingDate  The current working Date object being used to generate the calendar
        * @param {HTMLTableCellElement} cell   The current working cell in the calendar
        * @return {String} YAHOO.widget.Calendar.STOP_RENDER if rendering should stop with this style, null or nothing if rendering
        *   should not be terminated
        */
        renderBodyCellRestricted : function(workingDate, cell) {
            Dom.addClass(cell, this.Style.CSS_CELL);
            Dom.addClass(cell, this.Style.CSS_CELL_RESTRICTED);
            cell.innerHTML=workingDate.getDate();
            return Calendar.STOP_RENDER;
        },

        // END BUILT-IN TABLE CELL RENDERERS

        // BEGIN MONTH NAVIGATION METHODS

        /**
        * Adds the designated number of months to the current calendar month, and sets the current
        * calendar page date to the new month.
        * @method addMonths
        * @param {Number} count The number of months to add to the current calendar
        */
        addMonths : function(count) {
            var cfgPageDate = DEF_CFG.PAGEDATE.key,

            prevDate = this.cfg.getProperty(cfgPageDate),
            newDate = DateMath.add(prevDate, DateMath.MONTH, count);

            this.cfg.setProperty(cfgPageDate, newDate);
            this.resetRenderers();
            this.changePageEvent.fire(prevDate, newDate);
        },

        /**
        * Subtracts the designated number of months from the current calendar month, and sets the current
        * calendar page date to the new month.
        * @method subtractMonths
        * @param {Number} count The number of months to subtract from the current calendar
        */
        subtractMonths : function(count) {
            this.addMonths(-1*count);
        },

        /**
        * Adds the designated number of years to the current calendar, and sets the current
        * calendar page date to the new month.
        * @method addYears
        * @param {Number} count The number of years to add to the current calendar
        */
        addYears : function(count) {
            var cfgPageDate = DEF_CFG.PAGEDATE.key,

            prevDate = this.cfg.getProperty(cfgPageDate),
            newDate = DateMath.add(prevDate, DateMath.YEAR, count);

            this.cfg.setProperty(cfgPageDate, newDate);
            this.resetRenderers();
            this.changePageEvent.fire(prevDate, newDate);
        },

        /**
        * Subtcats the designated number of years from the current calendar, and sets the current
        * calendar page date to the new month.
        * @method subtractYears
        * @param {Number} count The number of years to subtract from the current calendar
        */
        subtractYears : function(count) {
            this.addYears(-1*count);
        },

        /**
        * Navigates to the next month page in the calendar widget.
        * @method nextMonth
        */
        nextMonth : function() {
            this.addMonths(1);
        },

        /**
        * Navigates to the previous month page in the calendar widget.
        * @method previousMonth
        */
        previousMonth : function() {
            this.addMonths(-1);
        },

        /**
        * Navigates to the next year in the currently selected month in the calendar widget.
        * @method nextYear
        */
        nextYear : function() {
            this.addYears(1);
        },

        /**
        * Navigates to the previous year in the currently selected month in the calendar widget.
        * @method previousYear
        */
        previousYear : function() {
            this.addYears(-1);
        },

        // END MONTH NAVIGATION METHODS

        // BEGIN SELECTION METHODS

        /**
        * Resets the calendar widget to the originally selected month and year, and
        * sets the calendar to the initial selection(s).
        * @method reset
        */
        reset : function() {
            this.cfg.resetProperty(DEF_CFG.SELECTED.key);
            this.cfg.resetProperty(DEF_CFG.PAGEDATE.key);
            this.resetEvent.fire();
        },

        /**
        * Clears the selected dates in the current calendar widget and sets the calendar
        * to the current month and year.
        * @method clear
        */
        clear : function() {
            this.cfg.setProperty(DEF_CFG.SELECTED.key, []);
            this.cfg.setProperty(DEF_CFG.PAGEDATE.key, new Date(this.today.getTime()));
            this.clearEvent.fire();
        },

        /**
        * Selects a date or a collection of dates on the current calendar. This method, by default,
        * does not call the render method explicitly. Once selection has completed, render must be
        * called for the changes to be reflected visually.
        *
        * Any dates which are OOB (out of bounds, not selectable) will not be selected and the array of
        * selected dates passed to the selectEvent will not contain OOB dates.
        *
        * If all dates are OOB, the no state change will occur; beforeSelect and select events will not be fired.
        *
        * @method select
        * @param {String/Date/Date[]} date The date string of dates to select in the current calendar. Valid formats are
        *        individual date(s) (12/24/2005,12/26/2005) or date range(s) (12/24/2005-1/1/2006).
        *        Multiple comma-delimited dates can also be passed to this method (12/24/2005,12/11/2005-12/13/2005).
        *        This method can also take a JavaScript Date object or an array of Date objects.
        * @return {Date[]}   Array of JavaScript Date objects representing all individual dates that are currently selected.
        */
        select : function(date) {
            this.logger.log("Select: " + date, "info");

            var aToBeSelected = this._toFieldArray(date),
                validDates = [],
                selected = [],
                cfgSelected = DEF_CFG.SELECTED.key;

            this.logger.log("Selection field array: " + aToBeSelected, "info");

            for (var a=0; a < aToBeSelected.length; ++a) {
                var toSelect = aToBeSelected[a];

                if (!this.isDateOOB(this._toDate(toSelect))) {

                    if (validDates.length === 0) {
                        this.beforeSelectEvent.fire();
                        selected = this.cfg.getProperty(cfgSelected);
                    }
                    validDates.push(toSelect);

                    if (this._indexOfSelectedFieldArray(toSelect) == -1) {
                        selected[selected.length] = toSelect;
                    }
                }
            }

            if (validDates.length === 0) { this.logger.log("All provided dates were OOB. beforeSelect and select events not fired", "info"); }

            if (validDates.length > 0) {
                if (this.parent) {
                    this.parent.cfg.setProperty(cfgSelected, selected);
                } else {
                    this.cfg.setProperty(cfgSelected, selected);
                }
                this.selectEvent.fire(validDates);
            }

            return this.getSelectedDates();
        },

        /**
        * Selects a date on the current calendar by referencing the index of the cell that should be selected.
        * This method is used to easily select a single cell (usually with a mouse click) without having to do
        * a full render. The selected style is applied to the cell directly.
        *
        * If the cell is not marked with the CSS_CELL_SELECTABLE class (as is the case by default for out of month
        * or out of bounds cells), it will not be selected and in such a case beforeSelect and select events will not be fired.
        *
        * @method selectCell
        * @param {Number} cellIndex The index of the cell to select in the current calendar.
        * @return {Date[]} Array of JavaScript Date objects representing all individual dates that are currently selected.
        */
        selectCell : function(cellIndex) {

            var cell = this.cells[cellIndex],
                cellDate = this.cellDates[cellIndex],
                dCellDate = this._toDate(cellDate),
                selectable = Dom.hasClass(cell, this.Style.CSS_CELL_SELECTABLE);

            this.logger.log("Select: " + dCellDate, "info");
            if (!selectable) {this.logger.log("The cell at cellIndex:" + cellIndex + " is not a selectable cell. beforeSelect, select events not fired", "info"); }

            if (selectable) {

                this.beforeSelectEvent.fire();

                var cfgSelected = DEF_CFG.SELECTED.key;
                var selected = this.cfg.getProperty(cfgSelected);

                var selectDate = cellDate.concat();

                if (this._indexOfSelectedFieldArray(selectDate) == -1) {
                    selected[selected.length] = selectDate;
                }
                if (this.parent) {
                    this.parent.cfg.setProperty(cfgSelected, selected);
                } else {
                    this.cfg.setProperty(cfgSelected, selected);
                }
                this.renderCellStyleSelected(dCellDate,cell);
                this.selectEvent.fire([selectDate]);

                this.doCellMouseOut.call(cell, null, this);
            }

            return this.getSelectedDates();
        },

        /**
        * Deselects a date or a collection of dates on the current calendar. This method, by default,
        * does not call the render method explicitly. Once deselection has completed, render must be
        * called for the changes to be reflected visually.
        *
        * The method will not attempt to deselect any dates which are OOB (out of bounds, and hence not selectable)
        * and the array of deselected dates passed to the deselectEvent will not contain any OOB dates.
        *
        * If all dates are OOB, beforeDeselect and deselect events will not be fired.
        *
        * @method deselect
        * @param {String/Date/Date[]} date The date string of dates to deselect in the current calendar. Valid formats are
        *        individual date(s) (12/24/2005,12/26/2005) or date range(s) (12/24/2005-1/1/2006).
        *        Multiple comma-delimited dates can also be passed to this method (12/24/2005,12/11/2005-12/13/2005).
        *        This method can also take a JavaScript Date object or an array of Date objects.
        * @return {Date[]}   Array of JavaScript Date objects representing all individual dates that are currently selected.
        */
        deselect : function(date) {
            this.logger.log("Deselect: " + date, "info");

            var aToBeDeselected = this._toFieldArray(date),
                validDates = [],
                selected = [],
                cfgSelected = DEF_CFG.SELECTED.key;

            this.logger.log("Deselection field array: " + aToBeDeselected, "info");

            for (var a=0; a < aToBeDeselected.length; ++a) {
                var toDeselect = aToBeDeselected[a];

                if (!this.isDateOOB(this._toDate(toDeselect))) {

                    if (validDates.length === 0) {
                        this.beforeDeselectEvent.fire();
                        selected = this.cfg.getProperty(cfgSelected);
                    }

                    validDates.push(toDeselect);

                    var index = this._indexOfSelectedFieldArray(toDeselect);
                    if (index != -1) {
                        selected.splice(index,1);
                    }
                }
            }

            if (validDates.length === 0) { this.logger.log("All provided dates were OOB. beforeDeselect and deselect events not fired");}

            if (validDates.length > 0) {
                if (this.parent) {
                    this.parent.cfg.setProperty(cfgSelected, selected);
                } else {
                    this.cfg.setProperty(cfgSelected, selected);
                }
                this.deselectEvent.fire(validDates);
            }

            return this.getSelectedDates();
        },

        /**
        * Deselects a date on the current calendar by referencing the index of the cell that should be deselected.
        * This method is used to easily deselect a single cell (usually with a mouse click) without having to do
        * a full render. The selected style is removed from the cell directly.
        *
        * If the cell is not marked with the CSS_CELL_SELECTABLE class (as is the case by default for out of month
        * or out of bounds cells), the method will not attempt to deselect it and in such a case, beforeDeselect and
        * deselect events will not be fired.
        *
        * @method deselectCell
        * @param {Number} cellIndex The index of the cell to deselect in the current calendar.
        * @return {Date[]} Array of JavaScript Date objects representing all individual dates that are currently selected.
        */
        deselectCell : function(cellIndex) {
            var cell = this.cells[cellIndex],
                cellDate = this.cellDates[cellIndex],
                cellDateIndex = this._indexOfSelectedFieldArray(cellDate);

            var selectable = Dom.hasClass(cell, this.Style.CSS_CELL_SELECTABLE);
            if (!selectable) { this.logger.log("The cell at cellIndex:" + cellIndex + " is not a selectable/deselectable cell", "info"); }

            if (selectable) {

                this.beforeDeselectEvent.fire();

                var selected = this.cfg.getProperty(DEF_CFG.SELECTED.key),
                    dCellDate = this._toDate(cellDate),
                    selectDate = cellDate.concat();

                if (cellDateIndex > -1) {
                    if ((this.cfg.getProperty(DEF_CFG.PAGEDATE.key).getMonth() == dCellDate.getMonth() &&
                        this.cfg.getProperty(DEF_CFG.PAGEDATE.key).getFullYear() == dCellDate.getFullYear()) || this.cfg.getProperty(DEF_CFG.OOM_SELECT.key)) {
                        Dom.removeClass(cell, this.Style.CSS_CELL_SELECTED);
                    }
                    selected.splice(cellDateIndex, 1);
                }

                if (this.parent) {
                    this.parent.cfg.setProperty(DEF_CFG.SELECTED.key, selected);
                } else {
                    this.cfg.setProperty(DEF_CFG.SELECTED.key, selected);
                }

                this.deselectEvent.fire([selectDate]);
            }

            return this.getSelectedDates();
        },

        /**
        * Deselects all dates on the current calendar.
        * @method deselectAll
        * @return {Date[]}  Array of JavaScript Date objects representing all individual dates that are currently selected.
        *      Assuming that this function executes properly, the return value should be an empty array.
        *      However, the empty array is returned for the sake of being able to check the selection status
        *      of the calendar.
        */
        deselectAll : function() {
            this.beforeDeselectEvent.fire();

            var cfgSelected = DEF_CFG.SELECTED.key,
                selected = this.cfg.getProperty(cfgSelected),
                count = selected.length,
                sel = selected.concat();

            if (this.parent) {
                this.parent.cfg.setProperty(cfgSelected, []);
            } else {
                this.cfg.setProperty(cfgSelected, []);
            }

            if (count > 0) {
                this.deselectEvent.fire(sel);
            }

            return this.getSelectedDates();
        },

        // END SELECTION METHODS

        // BEGIN TYPE CONVERSION METHODS

        /**
        * Converts a date (either a JavaScript Date object, or a date string) to the internal data structure
        * used to represent dates: [[yyyy,mm,dd],[yyyy,mm,dd]].
        * @method _toFieldArray
        * @private
        * @param {String/Date/Date[]} date The date string of dates to deselect in the current calendar. Valid formats are
        *        individual date(s) (12/24/2005,12/26/2005) or date range(s) (12/24/2005-1/1/2006).
        *        Multiple comma-delimited dates can also be passed to this method (12/24/2005,12/11/2005-12/13/2005).
        *        This method can also take a JavaScript Date object or an array of Date objects.
        * @return {Array[](Number[])} Array of date field arrays
        */
        _toFieldArray : function(date) {
            var returnDate = [];

            if (date instanceof Date) {
                returnDate = [[date.getFullYear(), date.getMonth()+1, date.getDate()]];
            } else if (Lang.isString(date)) {
                returnDate = this._parseDates(date);
            } else if (Lang.isArray(date)) {
                for (var i=0;i<date.length;++i) {
                    var d = date[i];
                    returnDate[returnDate.length] = [d.getFullYear(),d.getMonth()+1,d.getDate()];
                }
            }

            return returnDate;
        },

        /**
        * Converts a date field array [yyyy,mm,dd] to a JavaScript Date object. The date field array
        * is the format in which dates are as provided as arguments to selectEvent and deselectEvent listeners.
        *
        * @method toDate
        * @param {Number[]} dateFieldArray The date field array to convert to a JavaScript Date.
        * @return {Date} JavaScript Date object representing the date field array.
        */
        toDate : function(dateFieldArray) {
            return this._toDate(dateFieldArray);
        },

        /**
        * Converts a date field array [yyyy,mm,dd] to a JavaScript Date object.
        * @method _toDate
        * @private
        * @deprecated Made public, toDate
        * @param {Number[]}  dateFieldArray The date field array to convert to a JavaScript Date.
        * @return {Date} JavaScript Date object representing the date field array
        */
        _toDate : function(dateFieldArray) {
            if (dateFieldArray instanceof Date) {
                return dateFieldArray;
            } else {
                return DateMath.getDate(dateFieldArray[0],dateFieldArray[1]-1,dateFieldArray[2]);
            }
        },

        // END TYPE CONVERSION METHODS

        // BEGIN UTILITY METHODS

        /**
        * Determines if 2 field arrays are equal.
        * @method _fieldArraysAreEqual
        * @private
        * @param {Number[]} array1 The first date field array to compare
        * @param {Number[]} array2 The first date field array to compare
        * @return {Boolean} The boolean that represents the equality of the two arrays
        */
        _fieldArraysAreEqual : function(array1, array2) {
            var match = false;

            if (array1[0]==array2[0]&&array1[1]==array2[1]&&array1[2]==array2[2]) {
                match=true;
            }

            return match;
        },

        /**
        * Gets the index of a date field array [yyyy,mm,dd] in the current list of selected dates.
        * @method _indexOfSelectedFieldArray
        * @private
        * @param {Number[]}  find The date field array to search for
        * @return {Number}   The index of the date field array within the collection of selected dates.
        *        -1 will be returned if the date is not found.
        */
        _indexOfSelectedFieldArray : function(find) {
            var selected = -1,
                seldates = this.cfg.getProperty(DEF_CFG.SELECTED.key);

            for (var s=0;s<seldates.length;++s) {
                var sArray = seldates[s];
                if (find[0]==sArray[0]&&find[1]==sArray[1]&&find[2]==sArray[2]) {
                    selected = s;
                    break;
                }
            }

            return selected;
        },

        /**
        * Determines whether a given date is OOM (out of month).
        * @method isDateOOM
        * @param {Date} date The JavaScript Date object for which to check the OOM status
        * @return {Boolean} true if the date is OOM
        */
        isDateOOM : function(date) {
            return (date.getMonth() != this.cfg.getProperty(DEF_CFG.PAGEDATE.key).getMonth());
        },

        /**
        * Determines whether a given date is OOB (out of bounds - less than the mindate or more than the maxdate).
        *
        * @method isDateOOB
        * @param {Date} date The JavaScript Date object for which to check the OOB status
        * @return {Boolean} true if the date is OOB
        */
        isDateOOB : function(date) {
            var minDate = this.cfg.getProperty(DEF_CFG.MINDATE.key),
                maxDate = this.cfg.getProperty(DEF_CFG.MAXDATE.key),
                dm = DateMath;

            if (minDate) {
                minDate = dm.clearTime(minDate);
            }
            if (maxDate) {
                maxDate = dm.clearTime(maxDate);
            }

            var clearedDate = new Date(date.getTime());
            clearedDate = dm.clearTime(clearedDate);

            return ((minDate && clearedDate.getTime() < minDate.getTime()) || (maxDate && clearedDate.getTime() > maxDate.getTime()));
        },

        /**
         * Parses a pagedate configuration property value. The value can either be specified as a string of form "mm/yyyy" or a Date object
         * and is parsed into a Date object normalized to the first day of the month. If no value is passed in, the month and year from today's date are used to create the Date object
         * @method _parsePageDate
         * @private
         * @param {Date|String} date Pagedate value which needs to be parsed
         * @return {Date} The Date object representing the pagedate
         */
        _parsePageDate : function(date) {
            var parsedDate;

            if (date) {
                if (date instanceof Date) {
                    parsedDate = DateMath.findMonthStart(date);
                } else {
                    var month, year, aMonthYear;
                    aMonthYear = date.split(this.cfg.getProperty(DEF_CFG.DATE_FIELD_DELIMITER.key));
                    month = parseInt(aMonthYear[this.cfg.getProperty(DEF_CFG.MY_MONTH_POSITION.key)-1], 10)-1;
                    year = parseInt(aMonthYear[this.cfg.getProperty(DEF_CFG.MY_YEAR_POSITION.key)-1], 10) - this.Locale.YEAR_OFFSET;

                    parsedDate = DateMath.getDate(year, month, 1);
                }
            } else {
                parsedDate = DateMath.getDate(this.today.getFullYear(), this.today.getMonth(), 1);
            }
            return parsedDate;
        },

        // END UTILITY METHODS

        // BEGIN EVENT HANDLERS

        /**
        * Event executed before a date is selected in the calendar widget.
        * @deprecated Event handlers for this event should be susbcribed to beforeSelectEvent.
        */
        onBeforeSelect : function() {
            if (this.cfg.getProperty(DEF_CFG.MULTI_SELECT.key) === false) {
                if (this.parent) {
                    this.parent.callChildFunction("clearAllBodyCellStyles", this.Style.CSS_CELL_SELECTED);
                    this.parent.deselectAll();
                } else {
                    this.clearAllBodyCellStyles(this.Style.CSS_CELL_SELECTED);
                    this.deselectAll();
                }
            }
        },

        /**
        * Event executed when a date is selected in the calendar widget.
        * @param {Array} selected An array of date field arrays representing which date or dates were selected. Example: [ [2006,8,6],[2006,8,7],[2006,8,8] ]
        * @deprecated Event handlers for this event should be susbcribed to selectEvent.
        */
        onSelect : function(selected) { },

        /**
        * Event executed before a date is deselected in the calendar widget.
        * @deprecated Event handlers for this event should be susbcribed to beforeDeselectEvent.
        */
        onBeforeDeselect : function() { },

        /**
        * Event executed when a date is deselected in the calendar widget.
        * @param {Array} selected An array of date field arrays representing which date or dates were deselected. Example: [ [2006,8,6],[2006,8,7],[2006,8,8] ]
        * @deprecated Event handlers for this event should be susbcribed to deselectEvent.
        */
        onDeselect : function(deselected) { },

        /**
        * Event executed when the user navigates to a different calendar page.
        * @deprecated Event handlers for this event should be susbcribed to changePageEvent.
        */
        onChangePage : function() {
            this.render();
        },

        /**
        * Event executed when the calendar widget is rendered.
        * @deprecated Event handlers for this event should be susbcribed to renderEvent.
        */
        onRender : function() { },

        /**
        * Event executed when the calendar widget is reset to its original state.
        * @deprecated Event handlers for this event should be susbcribed to resetEvemt.
        */
        onReset : function() { this.render(); },

        /**
        * Event executed when the calendar widget is completely cleared to the current month with no selections.
        * @deprecated Event handlers for this event should be susbcribed to clearEvent.
        */
        onClear : function() { this.render(); },

        /**
        * Validates the calendar widget. This method has no default implementation
        * and must be extended by subclassing the widget.
        * @return Should return true if the widget validates, and false if
        * it doesn't.
        * @type Boolean
        */
        validate : function() { return true; },

        // END EVENT HANDLERS

        // BEGIN DATE PARSE METHODS

        /**
        * Converts a date string to a date field array
        * @private
        * @param {String} sDate   Date string. Valid formats are mm/dd and mm/dd/yyyy.
        * @return    A date field array representing the string passed to the method
        * @type Array[](Number[])
        */
        _parseDate : function(sDate) {
            var aDate = sDate.split(this.Locale.DATE_FIELD_DELIMITER),
                rArray;

            if (aDate.length == 2) {
                rArray = [aDate[this.Locale.MD_MONTH_POSITION-1],aDate[this.Locale.MD_DAY_POSITION-1]];
                rArray.type = Calendar.MONTH_DAY;
            } else {
                rArray = [aDate[this.Locale.MDY_YEAR_POSITION-1] - this.Locale.YEAR_OFFSET, aDate[this.Locale.MDY_MONTH_POSITION-1],aDate[this.Locale.MDY_DAY_POSITION-1]];
                rArray.type = Calendar.DATE;
            }

            for (var i=0;i<rArray.length;i++) {
                rArray[i] = parseInt(rArray[i], 10);
            }

            return rArray;
        },

        /**
        * Converts a multi or single-date string to an array of date field arrays
        * @private
        * @param {String} sDates  Date string with one or more comma-delimited dates. Valid formats are mm/dd, mm/dd/yyyy, mm/dd/yyyy-mm/dd/yyyy
        * @return       An array of date field arrays
        * @type Array[](Number[])
        */
        _parseDates : function(sDates) {
            var aReturn = [],
                aDates = sDates.split(this.Locale.DATE_DELIMITER);

            for (var d=0;d<aDates.length;++d) {
                var sDate = aDates[d];

                if (sDate.indexOf(this.Locale.DATE_RANGE_DELIMITER) != -1) {
                    // This is a range
                    var aRange = sDate.split(this.Locale.DATE_RANGE_DELIMITER),
                        dateStart = this._parseDate(aRange[0]),
                        dateEnd = this._parseDate(aRange[1]),
                        fullRange = this._parseRange(dateStart, dateEnd);

                    aReturn = aReturn.concat(fullRange);
                } else {
                    // This is not a range
                    var aDate = this._parseDate(sDate);
                    aReturn.push(aDate);
                }
            }
            return aReturn;
        },

        /**
        * Converts a date range to the full list of included dates
        * @private
        * @param {Number[]} startDate Date field array representing the first date in the range
        * @param {Number[]} endDate  Date field array representing the last date in the range
        * @return       An array of date field arrays
        * @type Array[](Number[])
        */
        _parseRange : function(startDate, endDate) {
            var dCurrent = DateMath.add(DateMath.getDate(startDate[0],startDate[1]-1,startDate[2]),DateMath.DAY,1),
                dEnd     = DateMath.getDate(endDate[0],  endDate[1]-1,  endDate[2]),
                results = [];

            results.push(startDate);
            while (dCurrent.getTime() <= dEnd.getTime()) {
                results.push([dCurrent.getFullYear(),dCurrent.getMonth()+1,dCurrent.getDate()]);
                dCurrent = DateMath.add(dCurrent,DateMath.DAY,1);
            }
            return results;
        },

        // END DATE PARSE METHODS

        // BEGIN RENDERER METHODS

        /**
        * Resets the render stack of the current calendar to its original pre-render value.
        */
        resetRenderers : function() {
            this.renderStack = this._renderStack.concat();
        },

        /**
         * Removes all custom renderers added to the Calendar through the addRenderer, addMonthRenderer and
         * addWeekdayRenderer methods. Calendar's render method needs to be called after removing renderers
         * to re-render the Calendar without custom renderers applied.
         */
        removeRenderers : function() {
            this._renderStack = [];
            this.renderStack = [];
        },

        /**
        * Clears the inner HTML, CSS class and style information from the specified cell.
        * @method clearElement
        * @param {HTMLTableCellElement} cell The cell to clear
        */
        clearElement : function(cell) {
            cell.innerHTML = "&#160;";
            cell.className="";
        },

        /**
        * Adds a renderer to the render stack. The function reference passed to this method will be executed
        * when a date cell matches the conditions specified in the date string for this renderer.
        *
        * <p>NOTE: The contents of the cell set by the renderer will be added to the DOM as HTML. The custom renderer implementation should
        * escape markup used to set the cell contents, if coming from an external source.<p>
        * @method addRenderer
        * @param {String} sDates  A date string to associate with the specified renderer. Valid formats
        *         include date (12/24/2005), month/day (12/24), and range (12/1/2004-1/1/2005)
        * @param {Function} fnRender The function executed to render cells that match the render rules for this renderer.
        */
        addRenderer : function(sDates, fnRender) {
            var aDates = this._parseDates(sDates);
            for (var i=0;i<aDates.length;++i) {
                var aDate = aDates[i];

                if (aDate.length == 2) { // this is either a range or a month/day combo
                    if (aDate[0] instanceof Array) { // this is a range
                        this._addRenderer(Calendar.RANGE,aDate,fnRender);
                    } else { // this is a month/day combo
                        this._addRenderer(Calendar.MONTH_DAY,aDate,fnRender);
                    }
                } else if (aDate.length == 3) {
                    this._addRenderer(Calendar.DATE,aDate,fnRender);
                }
            }
        },

        /**
        * The private method used for adding cell renderers to the local render stack.
        * This method is called by other methods that set the renderer type prior to the method call.
        * @method _addRenderer
        * @private
        * @param {String} type  The type string that indicates the type of date renderer being added.
        *         Values are YAHOO.widget.Calendar.DATE, YAHOO.widget.Calendar.MONTH_DAY, YAHOO.widget.Calendar.WEEKDAY,
        *         YAHOO.widget.Calendar.RANGE, YAHOO.widget.Calendar.MONTH
        * @param {Array}  aDates  An array of dates used to construct the renderer. The format varies based
        *         on the renderer type
        * @param {Function} fnRender The function executed to render cells that match the render rules for this renderer.
        */
        _addRenderer : function(type, aDates, fnRender) {
            var add = [type,aDates,fnRender];
            this.renderStack.unshift(add);
            this._renderStack = this.renderStack.concat();
        },

        /**
        * Adds a month renderer to the render stack. The function reference passed to this method will be executed
        * when a date cell matches the month passed to this method
        *
        * <p>NOTE: The contents of the cell set by the renderer will be added to the DOM as HTML. The custom renderer implementation should
        * escape markup used to set the cell contents, if coming from an external source.<p>
        * @method addMonthRenderer
        * @param {Number} month  The month (1-12) to associate with this renderer
        * @param {Function} fnRender The function executed to render cells that match the render rules for this renderer.
        */
        addMonthRenderer : function(month, fnRender) {
            this._addRenderer(Calendar.MONTH,[month],fnRender);
        },

        /**
        * Adds a weekday renderer to the render stack. The function reference passed to this method will be executed
        * when a date cell matches the weekday passed to this method.
        *
        * <p>NOTE: The contents of the cell set by the renderer will be added to the DOM as HTML. The custom renderer implementation should
        * escape HTML used to set the cell contents, if coming from an external source.<p>
        *
        * @method addWeekdayRenderer
        * @param {Number} weekday  The weekday (Sunday = 1, Monday = 2 ... Saturday = 7) to associate with this renderer
        * @param {Function} fnRender The function executed to render cells that match the render rules for this renderer.
        */
        addWeekdayRenderer : function(weekday, fnRender) {
            this._addRenderer(Calendar.WEEKDAY,[weekday],fnRender);
        },

        // END RENDERER METHODS

        // BEGIN CSS METHODS

        /**
        * Removes all styles from all body cells in the current calendar table.
        * @method clearAllBodyCellStyles
        * @param {style} style The CSS class name to remove from all calendar body cells
        */
        clearAllBodyCellStyles : function(style) {
            for (var c=0;c<this.cells.length;++c) {
                Dom.removeClass(this.cells[c],style);
            }
        },

        // END CSS METHODS

        // BEGIN GETTER/SETTER METHODS
        /**
        * Sets the calendar's month explicitly
        * @method setMonth
        * @param {Number} month  The numeric month, from 0 (January) to 11 (December)
        */
        setMonth : function(month) {
            var cfgPageDate = DEF_CFG.PAGEDATE.key,
                current = this.cfg.getProperty(cfgPageDate);
            current.setMonth(parseInt(month, 10));
            this.cfg.setProperty(cfgPageDate, current);
        },

        /**
        * Sets the calendar's year explicitly.
        * @method setYear
        * @param {Number} year  The numeric 4-digit year
        */
        setYear : function(year) {
            var cfgPageDate = DEF_CFG.PAGEDATE.key,
                current = this.cfg.getProperty(cfgPageDate);

            current.setFullYear(parseInt(year, 10) - this.Locale.YEAR_OFFSET);
            this.cfg.setProperty(cfgPageDate, current);
        },

        /**
        * Gets the list of currently selected dates from the calendar.
        * @method getSelectedDates
        * @return {Date[]} An array of currently selected JavaScript Date objects.
        */
        getSelectedDates : function() {
            var returnDates = [],
                selected = this.cfg.getProperty(DEF_CFG.SELECTED.key);

            for (var d=0;d<selected.length;++d) {
                var dateArray = selected[d];

                var date = DateMath.getDate(dateArray[0],dateArray[1]-1,dateArray[2]);
                returnDates.push(date);
            }

            returnDates.sort( function(a,b) { return a-b; } );
            return returnDates;
        },

        /// END GETTER/SETTER METHODS ///

        /**
        * Hides the Calendar's outer container from view.
        * @method hide
        */
        hide : function() {
            if (this.beforeHideEvent.fire()) {
                this.oDomContainer.style.display = "none";
                this.hideEvent.fire();
            }
        },

        /**
        * Shows the Calendar's outer container.
        * @method show
        */
        show : function() {
            if (this.beforeShowEvent.fire()) {
                this.oDomContainer.style.display = "block";
                this.showEvent.fire();
            }
        },

        /**
        * Returns a string representing the current browser.
        * @deprecated As of 2.3.0, environment information is available in YAHOO.env.ua
        * @see YAHOO.env.ua
        * @property browser
        * @type String
        */
        browser : (function() {
                    var ua = navigator.userAgent.toLowerCase();
                          if (ua.indexOf('opera')!=-1) { // Opera (check first in case of spoof)
                             return 'opera';
                          } else if (ua.indexOf('msie 7')!=-1) { // IE7
                             return 'ie7';
                          } else if (ua.indexOf('msie') !=-1) { // IE
                             return 'ie';
                          } else if (ua.indexOf('safari')!=-1) { // Safari (check before Gecko because it includes "like Gecko")
                             return 'safari';
                          } else if (ua.indexOf('gecko') != -1) { // Gecko
                             return 'gecko';
                          } else {
                             return false;
                          }
                    })(),
        /**
        * Returns a string representation of the object.
        * @method toString
        * @return {String} A string representation of the Calendar object.
        */
        toString : function() {
            return "Calendar " + this.id;
        },

        /**
         * Destroys the Calendar instance. The method will remove references
         * to HTML elements, remove any event listeners added by the Calendar,
         * and destroy the Config and CalendarNavigator instances it has created.
         *
         * @method destroy
         */
        destroy : function() {

            if (this.beforeDestroyEvent.fire()) {
                var cal = this;

                // Child objects
                if (cal.navigator) {
                    cal.navigator.destroy();
                }

                if (cal.cfg) {
                    cal.cfg.destroy();
                }

                // DOM event listeners
                Event.purgeElement(cal.oDomContainer, true);

                // Generated markup/DOM - Not removing the container DIV since we didn't create it.
                Dom.removeClass(cal.oDomContainer, cal.Style.CSS_WITH_TITLE);
                Dom.removeClass(cal.oDomContainer, cal.Style.CSS_CONTAINER);
                Dom.removeClass(cal.oDomContainer, cal.Style.CSS_SINGLE);
                cal.oDomContainer.innerHTML = "";

                // JS-to-DOM references
                cal.oDomContainer = null;
                cal.cells = null;

                this.destroyEvent.fire();
            }
        }
    };

    YAHOO.widget.Calendar = Calendar;

    /**
    * @namespace YAHOO.widget
    * @class Calendar_Core
    * @extends YAHOO.widget.Calendar
    * @deprecated The old Calendar_Core class is no longer necessary.
    */
    YAHOO.widget.Calendar_Core = YAHOO.widget.Calendar;

    YAHOO.widget.Cal_Core = YAHOO.widget.Calendar;

    })();

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