// Name:        Calendar.CalendarBehavior.debug.js
// Assembly:    AjaxControlToolkit
// Version:     4.5.7.1213
// FileVersion: 4.5.7.1213
// (c) 2010 CodePlex Foundation



/// <reference name="MicrosoftAjax.debug.js" />
/// <reference name="MicrosoftAjaxTimer.debug.js" />
/// <reference name="MicrosoftAjaxWebForms.debug.js" />
/// <reference path="../ExtenderBase/BaseScripts.js" />
/// <reference path="../Common/Common.js" />
/// <reference path="../Common/DateTime.js" />
/// <reference path="../Common/Threading.js" />
/// <reference path="../Animation/Animations.js" />
/// <reference path="../Animation/AnimationBehavior.js" />
/// <reference path="../PopupExtender/PopupBehavior.js" />

(function () {
    var scriptName = "ExtendedCalendar";

    function execute() {

        Type.registerNamespace("Sys.Extended.UI");

        Sys.Extended.UI.CalendarBehavior = function (element) {
            /// <summary>
            /// A behavior that attaches a calendar date selector to a textbox
            /// </summmary>
            /// <param name="element" type="Sys.UI.DomElement">The element to attach to</param>

            Sys.Extended.UI.CalendarBehavior.initializeBase(this, [element]);

            this._textbox = Sys.Extended.UI.TextBoxWrapper.get_Wrapper(element);
            this._format = "d";
            this._todaysDateFormat = "MMMM d, yyyy";
            this._daysModeTitleFormat = "MMMM, yyyy";
            this._cssClass = "ajax__calendar";
            this._enabled = true;
            this._animated = true;
            this._buttonID = null;
            this._layoutRequested = 0;
            this._layoutSuspended = false;
            this._button = null;
            this._popupMouseDown = false;
            this._selectedDate = null;
            this._startDate = null;
            this._endDate = null;
            this._visibleDate = null;
            this._todaysDate = null;
            this._firstDayOfWeek = Sys.Extended.UI.FirstDayOfWeek.Default;
            this._firstPopUp = true;

            this._container = null;
            this._popupDiv = null;
            this._header = null;
            this._prevArrow = null;
            this._nextArrow = null;
            this._title = null;
            this._body = null;
            this._today = null;
            this._days = null;
            this._daysTable = null;
            this._daysTableHeader = null;
            this._daysTableHeaderRow = null;
            this._daysBody = null;
            this._months = null;
            this._monthsTable = null;
            this._monthsBody = null;
            this._years = null;
            this._yearsTable = null;
            this._yearsBody = null;
            this._popupPosition = Sys.Extended.UI.CalendarPosition.BottomLeft;
            this._defaultView = Sys.Extended.UI.CalendarDefaultView.Days;

            this._popupBehavior = null;
            this._modeChangeAnimation = null;
            this._modeChangeMoveTopOrLeftAnimation = null;
            this._modeChangeMoveBottomOrRightAnimation = null;
            this._mode = "days";
            this._selectedDateChanging = false;
            this._isOpen = false;
            this._isAnimating = false;
            this._clearTime = false;
            this._width = 170;
            this._height = 139;
            this._modes = { "days": null, "months": null, "years": null };
            this._modeOrder = { "days": 0, "months": 1, "years": 2 };
            this._blur = new Sys.Extended.UI.DeferredOperation(1, this, this.blur);

            this._button$delegates = {
                click: Function.createDelegate(this, this._button_onclick),
                keypress: Function.createDelegate(this, this._button_onkeypress),
                blur: Function.createDelegate(this, this._button_onblur)
            }
            this._element$delegates = {
                change: Function.createDelegate(this, this._element_onchange),
                keypress: Function.createDelegate(this, this._element_onkeypress),
                click: Function.createDelegate(this, this._element_onclick),
                focus: Function.createDelegate(this, this._element_onfocus),
                blur: Function.createDelegate(this, this._element_onblur)
            }
            this._popup$delegates = {
                mousedown: Function.createDelegate(this, this._popup_onmousedown),
                mouseup: Function.createDelegate(this, this._popup_onmouseup),
                drag: Function.createDelegate(this, this._popup_onevent),
                dragstart: Function.createDelegate(this, this._popup_onevent)
            }
            this._cell$delegates = {
                mouseover: Function.createDelegate(this, this._cell_onmouseover),
                mouseout: Function.createDelegate(this, this._cell_onmouseout),
                click: Function.createDelegate(this, this._cell_onclick)
            }
        }
        Sys.Extended.UI.CalendarBehavior.prototype = {

            get_clearTime: function () {
                /// <summary>
                /// Whether time should be cleared in edited date/time
                /// </summary>
                /// <value type="Boolean" />

                return this._clearTime;
            },
            set_clearTime: function (value) {
                if (this._clearTime != value) {
                    this._clearTime = value;
                    this.raisePropertyChanged("_clearTime");
                }
            },

            get_animated: function () {
                /// <summary>
                /// Whether changing modes is animated
                /// </summary>
                /// <value type="Boolean" />

                return this._animated;
            },
            set_animated: function (value) {
                if (this._animated != value) {
                    this._animated = value;
                    this.raisePropertyChanged("animated");
                }
            },

            get_enabled: function () {
                /// <value type="Boolean">
                /// Whether this behavior is available for the current element
                /// </value>

                return this._enabled;
            },
            set_enabled: function (value) {
                if (this._enabled != value) {
                    this._enabled = value;
                    this.raisePropertyChanged("enabled");
                }
            },

            get_button: function () {
                /// <value type="Sys.UI.DomElement">
                /// The button to use to show the calendar (optional)
                /// </value>

                return this._button;
            },
            set_button: function (value) {
                if (this._button != value) {
                    if (this._button && this.get_isInitialized()) {
                        $common.removeHandlers(this._button, this._button$delegates);
                    }
                    this._button = value;
                    if (this._button && this.get_isInitialized()) {
                        $addHandlers(this._button, this._button$delegates);
                    }
                    this.raisePropertyChanged("button");
                }
            },

            get_popupPosition: function () {
                /// <value type="Sys.Extended.UI.CalendarPosition">
                /// Where the popup should be positioned relative to the target control.
                /// Can be BottomLeft (Default), BottomRight, TopLeft, TopRight.
                /// </value>

                return this._popupPosition;
            },
            set_popupPosition: function (value) {
                if (this._popupPosition != value) {
                    this._popupPosition = value;
                    this.raisePropertyChanged('popupPosition');
                }
            },

            set_startDate: function (value) {
                /// <value type="Date">
                /// The property of the start date for range
                /// </value>
                if (this._startDate != value) {
                    this._startDate = new Date(value);
                    this.raisePropertyChanged('startDate');
                }
            },

            get_startDate: function () {
                /// <value type="Date">
                /// The property of the start date for range
                /// </value>
                return this._startDate;
            },

            set_endDate: function (value) {
                /// <value type="Date">
                /// The property of the end date for range
                /// </value>
                if (this._endDate != value) {
                    this._endDate = new Date(value);
                    this.raisePropertyChanged('_endDate');
                }
            },

            get_endDate: function () {
                /// <value type="Date">
                /// The property of the end date for range
                /// </value>
                return this._endDate;
            },

            get_format: function () {
                /// <value type="String">
                /// The format to use for the date value
                /// </value>

                return this._format;
            },
            set_format: function (value) {
                if (this._format != value) {
                    this._format = value;
                    this.raisePropertyChanged("format");
                }
            },

            get_todaysDateFormat: function () {
                /// <value type="String">
                /// The format to use for the todays date
                /// </value>

                return this._todaysDateFormat;
            },
            set_todaysDateFormat: function (value) {
                if (this._todaysDateFormat != value) {
                    this._todaysDateFormat = value;
                    this.raisePropertyChanged("todaysDateFormat");
                }
            },

            get_daysModeTitleFormat: function () {
                /// <value type="String">
                /// The format to use for the title when in days mode
                /// </value>

                return this._daysModeTitleFormat;
            },
            set_daysModeTitleFormat: function (value) {
                if (this._daysModeTitleFormat != value) {
                    this._daysModeTitleFormat = value;
                    this.raisePropertyChanged("daysModeTitleFormat");
                }
            },

            get_selectedDate: function () {
                /// <value type="Date">
                /// The date value represented by the text box
                /// </value>
                if (this._selectedDate == null) {
                    var value = this._textbox.get_Value();
                    if (value) {
                        value = this._parseTextValue(value);
                        if (value) {
                            this._selectedDate = value;
                        }
                    }
                }
                return this._selectedDate;
            },
            set_selectedDate: function (value) {
                if (value && (String.isInstanceOfType(value)) && (value.length != 0)) {
                    value = new Date(value);
                }

                if (this._selectedDate != value) {
                    this._selectedDate = value;
                    this._selectedDateChanging = true;
                    var text = "";
                    if (value) {
                        text = this._convertToLocal(value).localeFormat(this._format);

                        if (!this._clearTime) {
                            var tbvalue = this._textbox.get_Value();
                            if (tbvalue) {
                                tbvalue = this._parseTextValue(tbvalue);
                            }
                            if (tbvalue) {
                                if (value != tbvalue.getDateOnly()) {
                                    value.setUTCHours(tbvalue.getUTCHours());
                                    value.setUTCMinutes(tbvalue.getUTCMinutes());
                                    value.setUTCMilliseconds(tbvalue.getUTCMilliseconds());

                                    text = this._convertToLocal(value).localeFormat(this._format);
                                }
                            }
                        }

                    }
                    if (text != this._textbox.get_Value()) {
                        this._textbox.set_Value(text);
                        this._fireChanged();
                    }
                    this._selectedDateChanging = false;
                    this.invalidate();
                    this.raisePropertyChanged("selectedDate");
                }
            },

            get_defaultView: function () {
                /// <value type="Sys.Extended.UI.CalendarDefaultView">
                /// The default view of the calendar when it first pops up.
                /// </value>

                return this._defaultView;
            },
            set_defaultView: function (value) {
                if (this._defaultView != value) {
                    this._defaultView = value;
                    this.raisePropertyChanged("defaultView");
                }
            },

            get_visibleDate: function () {
                /// <summary>
                /// The date currently visible in the calendar
                /// </summary>
                /// <value type="Date" />

                return this._visibleDate;
            },
            set_visibleDate: function (value) {
                if (value && (String.isInstanceOfType(value)) && (value.length != 0)) {
                    value = new Date(value);
                }

                if (this._visibleDate != value) {
                    this._switchMonth(value, !this._isOpen);
                    this.raisePropertyChanged("visibleDate");
                }
            },

            get_isOpen: function () {
                /// <value type="Boolean">
                /// Whether the calendar is open
                /// </value>
                return this._isOpen;
            },

            get_todaysDate: function () {
                /// <value type="Date">
                /// The date to use for "Today"
                /// </value>
                if (this._todaysDate != null) {
                    return this._todaysDate;
                }
                return new Date();
            },
            set_todaysDate: function (value) {
                if (this._todaysDate != value) {
                    this._todaysDate = value;

                    this.invalidate();
                    this.raisePropertyChanged("todaysDate");
                }
            },

            get_firstDayOfWeek: function () {
                /// <value type="Sys.Extended.UI.FirstDayOfWeek">
                /// The day of the week to appear as the first day in the calendar
                /// </value>

                return this._firstDayOfWeek;
            },
            set_firstDayOfWeek: function (value) {
                if (this._firstDayOfWeek != value) {
                    this._firstDayOfWeek = value;
                    this.invalidate();
                    this.raisePropertyChanged("firstDayOfWeek");
                }
            },

            get_cssClass: function () {
                /// <value type="String">
                /// The CSS class selector to use to change the calendar's appearance
                /// </value>

                return this._cssClass;
            },
            set_cssClass: function (value) {
                if (this._cssClass != value) {
                    if (this._cssClass && this.get_isInitialized()) {
                        Sys.UI.DomElement.removeCssClass(this._container, this._cssClass);
                    }
                    this._cssClass = value;
                    if (this._cssClass && this.get_isInitialized()) {
                        Sys.UI.DomElement.addCssClass(this._container, this._cssClass);
                    }
                    this.raisePropertyChanged("cssClass");
                }
            },

            get_todayButton: function () {
                /// <value type="Sys.UI.DomElement">
                /// The button used to select todays date
                /// </value>

                return this._today;
            },

            get_dayCell: function (row, col) {
                /// <value type="Sys.UI.DomElement">
                /// Gets the day cell at the specified row or column
                /// </value>
                if (this._daysBody) {
                    return this._daysBody.rows[row].cells[col].firstChild;
                }
                return null;
            },

            add_showing: function (handler) {
                /// <summary>
                /// Adds an event handler for the <code>showiwng</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to add to the event.
                /// </param>
                /// <returns />

                this.get_events().addHandler("showing", handler);
            },
            remove_showing: function (handler) {
                /// <summary>
                /// Removes an event handler for the <code>showing</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to remove from the event.
                /// </param>
                /// <returns />

                this.get_events().removeHandler("showing", handler);
            },
            raiseShowing: function (eventArgs) {
                /// <summary>
                /// Raise the showing event
                /// </summary>
                /// <param name="eventArgs" type="Sys.CancelEventArgs" mayBeNull="false">
                /// Event arguments for the showing event
                /// </param>
                /// <returns />

                var handler = this.get_events().getHandler('showing');
                if (handler) {
                    handler(this, eventArgs);
                }
            },

            add_shown: function (handler) {
                /// <summary>
                /// Adds an event handler for the <code>shown</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to add to the event.
                /// </param>
                /// <returns />

                this.get_events().addHandler("shown", handler);
            },
            remove_shown: function (handler) {
                /// <summary>
                /// Removes an event handler for the <code>shown</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to remove from the event.
                /// </param>
                /// <returns />

                this.get_events().removeHandler("shown", handler);
            },
            raiseShown: function () {
                /// <summary>
                /// Raise the <code>shown</code> event
                /// </summary>
                /// <returns />

                var handlers = this.get_events().getHandler("shown");
                if (handlers) {
                    handlers(this, Sys.EventArgs.Empty);
                }
            },

            add_hiding: function (handler) {
                /// <summary>
                /// Adds an event handler for the <code>hiding</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to add to the event.
                /// </param>
                /// <returns />

                this.get_events().addHandler("hiding", handler);
            },
            remove_hiding: function (handler) {
                /// <summary>
                /// Removes an event handler for the <code>hiding</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to remove from the event.
                /// </param>
                /// <returns />

                this.get_events().removeHandler("hiding", handler);
            },
            raiseHiding: function (eventArgs) {
                /// <summary>
                /// Raise the hiding event
                /// </summary>
                /// <param name="eventArgs" type="Sys.CancelEventArgs" mayBeNull="false">
                /// Event arguments for the hiding event
                /// </param>
                /// <returns />

                var handler = this.get_events().getHandler('hiding');
                if (handler) {
                    handler(this, eventArgs);
                }
            },

            add_hidden: function (handler) {
                /// <summary>
                /// Adds an event handler for the <code>hidden</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to add to the event.
                /// </param>
                /// <returns />

                this.get_events().addHandler("hidden", handler);
            },
            remove_hidden: function (handler) {
                /// <summary>
                /// Removes an event handler for the <code>hidden</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to remove from the event.
                /// </param>
                /// <returns />

                this.get_events().removeHandler("hidden", handler);
            },
            raiseHidden: function () {
                /// <summary>
                /// Raise the <code>hidden</code> event
                /// </summary>
                /// <returns />

                var handlers = this.get_events().getHandler("hidden");
                if (handlers) {
                    handlers(this, Sys.EventArgs.Empty);
                }
            },

            add_dateSelectionChanged: function (handler) {
                /// <summary>
                /// Adds an event handler for the <code>dateSelectionChanged</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to add to the event.
                /// </param>
                /// <returns />

                this.get_events().addHandler("dateSelectionChanged", handler);
            },
            remove_dateSelectionChanged: function (handler) {
                /// <summary>
                /// Removes an event handler for the <code>dateSelectionChanged</code> event.
                /// </summary>
                /// <param name="handler" type="Function">
                /// The handler to remove from the event.
                /// </param>
                /// <returns />

                this.get_events().removeHandler("dateSelectionChanged", handler);
            },
            raiseDateSelectionChanged: function () {
                /// <summary>
                /// Raise the <code>dateSelectionChanged</code> event
                /// </summary>
                /// <returns />

                var handlers = this.get_events().getHandler("dateSelectionChanged");
                if (handlers) {
                    handlers(this, Sys.EventArgs.Empty);
                }
            },

            initialize: function () {
                /// <summary>
                /// Initializes the components and parameters for this behavior
                /// </summary>
                Sys.Extended.UI.CalendarBehavior.callBaseMethod(this, "initialize");

                var elt = this.get_element();
                $addHandlers(elt, this._element$delegates);

                if (this._button) {
                    $addHandlers(this._button, this._button$delegates);
                }

                this._modeChangeMoveTopOrLeftAnimation = new Sys.Extended.UI.Animation.LengthAnimation(null, null, null, "style", null, 0, 0, "px");
                this._modeChangeMoveBottomOrRightAnimation = new Sys.Extended.UI.Animation.LengthAnimation(null, null, null, "style", null, 0, 0, "px");
                this._modeChangeAnimation = new Sys.Extended.UI.Animation.ParallelAnimation(null, .25, null, [this._modeChangeMoveTopOrLeftAnimation, this._modeChangeMoveBottomOrRightAnimation]);

                var value = this.get_selectedDate();
                if (value) {
                    this.set_selectedDate(value);
                }
            },
            dispose: function () {
                /// <summary>
                /// Disposes this behavior's resources
                /// </summary>

                if (this._popupBehavior) {
                    this._popupBehavior.dispose();
                    this._popupBehavior = null;
                }
                this._modes = null;
                this._modeOrder = null;
                if (this._modeChangeMoveTopOrLeftAnimation) {
                    this._modeChangeMoveTopOrLeftAnimation.dispose();
                    this._modeChangeMoveTopOrLeftAnimation = null;
                }
                if (this._modeChangeMoveBottomOrRightAnimation) {
                    this._modeChangeMoveBottomOrRightAnimation.dispose();
                    this._modeChangeMoveBottomOrRightAnimation = null;
                }
                if (this._modeChangeAnimation) {
                    this._modeChangeAnimation.dispose();
                    this._modeChangeAnimation = null;
                }
                if (this._container) {
                    if (this._container.parentNode) { // added this check before calling removeChild WI: 8486
                        this._container.parentNode.removeChild(this._container);
                    }
                    this._container = null;
                }
                if (this._popupDiv) {
                    $common.removeHandlers(this._popupDiv, this._popup$delegates);
                    this._popupDiv = null;
                }
                if (this._prevArrow) {
                    $common.removeHandlers(this._prevArrow, this._cell$delegates);
                    this._prevArrow = null;
                }
                if (this._nextArrow) {
                    $common.removeHandlers(this._nextArrow, this._cell$delegates);
                    this._nextArrow = null;
                }
                if (this._title) {
                    $common.removeHandlers(this._title, this._cell$delegates);
                    this._title = null;
                }
                if (this._today) {
                    $common.removeHandlers(this._today, this._cell$delegates);
                    this._today = null;
                }
                if (this._button) {
                    $common.removeHandlers(this._button, this._button$delegates);
                    this._button = null;
                }
                if (this._daysBody) {
                    for (var i = 0; i < this._daysBody.rows.length; i++) {
                        var row = this._daysBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            $common.removeHandlers(row.cells[j].firstChild, this._cell$delegates);
                        }
                    }
                    this._daysBody = null;
                }
                if (this._monthsBody) {
                    for (var i = 0; i < this._monthsBody.rows.length; i++) {
                        var row = this._monthsBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            $common.removeHandlers(row.cells[j].firstChild, this._cell$delegates);
                        }
                    }
                    this._monthsBody = null;
                }
                if (this._yearsBody) {
                    for (var i = 0; i < this._yearsBody.rows.length; i++) {
                        var row = this._yearsBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            $common.removeHandlers(row.cells[j].firstChild, this._cell$delegates);
                        }
                    }
                    this._yearsBody = null;
                }
                var elt = this.get_element();
                $common.removeHandlers(elt, this._element$delegates);
                Sys.Extended.UI.CalendarBehavior.callBaseMethod(this, "dispose");
            },

            show: function () {
                /// <summary>
                /// Shows the calendar
                /// </summary>

                this._ensureCalendar();

                if (!this._isOpen) {

                    var eventArgs = new Sys.CancelEventArgs();
                    this.raiseShowing(eventArgs);
                    if (eventArgs.get_cancel()) {
                        return;
                    }

                    this._isOpen = true;

                    this._popupBehavior.show();

                    if (this._firstPopUp) {
                        this._switchMonth(null, true);
                        switch (this._defaultView) {
                            case Sys.Extended.UI.CalendarDefaultView.Months:
                                this._switchMode("months", true);
                                break;
                            case Sys.Extended.UI.CalendarDefaultView.Years:
                                this._switchMode("years", true);
                                break;
                        }
                        this._firstPopUp = false;
                    }

                    this.raiseShown();
                }
            },
            hide: function () {
                /// <summary>
                /// Hides the calendar
                /// </summary>

                if (this._isOpen) {
                    var eventArgs = new Sys.CancelEventArgs();
                    this.raiseHiding(eventArgs);
                    if (eventArgs.get_cancel()) {
                        return;
                    }

                    if (this._container) {
                        this._popupBehavior.hide();
                    }
                    this._isOpen = false;
                    this.raiseHidden();

                    this._popupMouseDown = false;
                }
            },
            focus: function () {
                if (this._button) {
                    this._button.focus();
                } else {
                    this.get_element().focus();
                }
            },
            blur: function (force) {
                if (!force && Sys.Browser.agent === Sys.Browser.Opera) {
                    this._blur.post(true);
                } else {
                    if (!this._popupMouseDown) {
                        this.hide();
                    }
                    this._popupMouseDown = false;
                }
            },

            suspendLayout: function () {
                /// <summary>
                /// Suspends layout of the behavior while setting properties
                /// </summary>

                this._layoutSuspended++;
            },
            resumeLayout: function () {
                /// <summary>
                /// Resumes layout of the behavior and performs any pending layout requests
                /// </summary>

                this._layoutSuspended--;
                if (this._layoutSuspended <= 0) {
                    this._layoutSuspended = 0;
                    if (this._layoutRequested) {
                        this._performLayout();
                    }
                }
            },
            invalidate: function () {
                /// <summary>
                /// Performs layout of the behavior unless layout is suspended
                /// </summary>

                if (this._layoutSuspended > 0) {
                    this._layoutRequested = true;
                } else {
                    this._performLayout();
                }
            },

            _buildCalendar: function () {
                /// <summary>
                /// Builds the calendar's layout
                /// </summary>

                var elt = this.get_element();
                var id = this.get_id();

                this._container = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: id + "_container" },
                    cssClasses: [this._cssClass],
                    visible: false
                }, elt.parentNode);

                this._popupDiv = $common.createElementFromTemplate({
                    nodeName: "div",
                    events: this._popup$delegates,
                    properties: {
                        id: id + "_popupDiv"
                    },
                    cssClasses: ["ajax__calendar_container"]
                }, this._container);
            },
            _buildHeader: function () {
                /// <summary>
                /// Builds the header for the calendar
                /// </summary>

                var id = this.get_id();

                this._header = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: id + "_header" },
                    cssClasses: ["ajax__calendar_header"]
                }, this._popupDiv);

                var prevArrowWrapper = $common.createElementFromTemplate({ nodeName: "div" }, this._header);
                this._prevArrow = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: {
                        id: id + "_prevArrow",
                        mode: "prev"
                    },
                    events: this._cell$delegates,
                    cssClasses: ["ajax__calendar_prev"]
                }, prevArrowWrapper);

                var nextArrowWrapper = $common.createElementFromTemplate({ nodeName: "div" }, this._header);
                this._nextArrow = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: {
                        id: id + "_nextArrow",
                        mode: "next"
                    },
                    events: this._cell$delegates,
                    cssClasses: ["ajax__calendar_next"]
                }, nextArrowWrapper);

                var titleWrapper = $common.createElementFromTemplate({ nodeName: "div" }, this._header);

                this._title = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: {
                        id: id + "_title",
                        mode: "title"
                    },
                    events: this._cell$delegates,
                    cssClasses: ["ajax__calendar_title"]
                }, titleWrapper);
            },
            _buildBody: function () {
                /// <summary>
                /// Builds the body region for the calendar
                /// </summary>

                this._body = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: this.get_id() + "_body" },
                    cssClasses: ["ajax__calendar_body"]
                }, this._popupDiv);

                this._buildDays();
                this._buildMonths();
                this._buildYears();
            },
            _buildFooter: function () {
                /// <summary>
                /// Builds the footer for the calendar
                /// </summary>

                var todayWrapper = $common.createElementFromTemplate({ nodeName: "div" }, this._popupDiv);
                this._today = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: {
                        id: this.get_id() + "_today",
                        mode: "today"
                    },
                    events: this._cell$delegates,
                    cssClasses: ["ajax__calendar_footer", "ajax__calendar_today"]
                }, todayWrapper);
            },
            _buildDays: function () {
                /// <summary>
                /// Builds a "days of the month" view for the calendar
                /// </summary>

                var dtf = Sys.CultureInfo.CurrentCulture.dateTimeFormat;
                var id = this.get_id();

                this._days = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: id + "_days" },
                    cssClasses: ["ajax__calendar_days"]
                }, this._body);
                this._modes["days"] = this._days;

                this._daysTable = $common.createElementFromTemplate({
                    nodeName: "table",
                    properties: {
                        id: id + "_daysTable",
                        cellPadding: 0,
                        cellSpacing: 0,
                        border: 0,
                        style: { margin: "auto" }
                    }
                }, this._days);

                this._daysTableHeader = $common.createElementFromTemplate({ nodeName: "thead", properties: { id: id + "_daysTableHeader"} }, this._daysTable);
                this._daysTableHeaderRow = $common.createElementFromTemplate({ nodeName: "tr", properties: { id: id + "_daysTableHeaderRow"} }, this._daysTableHeader);
                for (var i = 0; i < 7; i++) {
                    var dayCell = $common.createElementFromTemplate({ nodeName: "td" }, this._daysTableHeaderRow);
                    var dayDiv = $common.createElementFromTemplate({
                        nodeName: "div",
                        cssClasses: ["ajax__calendar_dayname"]
                    }, dayCell);
                }

                this._daysBody = $common.createElementFromTemplate({ nodeName: "tbody", properties: { id: id + "_daysBody"} }, this._daysTable);
                for (var i = 0; i < 6; i++) {
                    var daysRow = $common.createElementFromTemplate({ nodeName: "tr" }, this._daysBody);
                    for (var j = 0; j < 7; j++) {
                        var dayCell = $common.createElementFromTemplate({ nodeName: "td" }, daysRow);
                        var dayDiv = $common.createElementFromTemplate({
                            nodeName: "div",
                            properties: {
                                mode: "day",
                                id: id + "_day_" + i + "_" + j,
                                innerHTML: "&nbsp;"
                            },
                            events: this._cell$delegates,
                            cssClasses: ["ajax__calendar_day"]
                        }, dayCell);
                    }
                }
            },
            _buildMonths: function () {
                /// <summary>
                /// Builds a "months of the year" view for the calendar
                /// </summary>

                var dtf = Sys.CultureInfo.CurrentCulture.dateTimeFormat;
                var id = this.get_id();

                this._months = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: id + "_months" },
                    cssClasses: ["ajax__calendar_months"],
                    visible: false
                }, this._body);
                this._modes["months"] = this._months;

                this._monthsTable = $common.createElementFromTemplate({
                    nodeName: "table",
                    properties: {
                        id: id + "_monthsTable",
                        cellPadding: 0,
                        cellSpacing: 0,
                        border: 0,
                        style: { margin: "auto" }
                    }
                }, this._months);

                this._monthsBody = $common.createElementFromTemplate({ nodeName: "tbody", properties: { id: id + "_monthsBody"} }, this._monthsTable);
                for (var i = 0; i < 3; i++) {
                    var monthsRow = $common.createElementFromTemplate({ nodeName: "tr" }, this._monthsBody);
                    for (var j = 0; j < 4; j++) {
                        var monthCell = $common.createElementFromTemplate({ nodeName: "td" }, monthsRow);
                        var monthDiv = $common.createElementFromTemplate({
                            nodeName: "div",
                            properties: {
                                id: id + "_month_" + i + "_" + j,
                                mode: "month",
                                month: (i * 4) + j,
                                innerHTML: "<br />" + dtf.AbbreviatedMonthNames[(i * 4) + j]
                            },
                            events: this._cell$delegates,
                            cssClasses: ["ajax__calendar_month"]
                        }, monthCell);
                    }
                }
            },
            _buildYears: function () {
                /// <summary>
                /// Builds a "years in this decade" view for the calendar
                /// </summary>

                var id = this.get_id();

                this._years = $common.createElementFromTemplate({
                    nodeName: "div",
                    properties: { id: id + "_years" },
                    cssClasses: ["ajax__calendar_years"],
                    visible: false
                }, this._body);
                this._modes["years"] = this._years;

                this._yearsTable = $common.createElementFromTemplate({
                    nodeName: "table",
                    properties: {
                        id: id + "_yearsTable",
                        cellPadding: 0,
                        cellSpacing: 0,
                        border: 0,
                        style: { margin: "auto" }
                    }
                }, this._years);

                this._yearsBody = $common.createElementFromTemplate({ nodeName: "tbody", properties: { id: id + "_yearsBody"} }, this._yearsTable);
                for (var i = 0; i < 3; i++) {
                    var yearsRow = $common.createElementFromTemplate({ nodeName: "tr" }, this._yearsBody);
                    for (var j = 0; j < 4; j++) {
                        var yearCell = $common.createElementFromTemplate({ nodeName: "td" }, yearsRow);
                        var yearDiv = $common.createElementFromTemplate({
                            nodeName: "div",
                            properties: {
                                id: id + "_year_" + i + "_" + j,
                                mode: "year",
                                year: ((i * 4) + j) - 1
                            },
                            events: this._cell$delegates,
                            cssClasses: ["ajax__calendar_year"]
                        }, yearCell);
                    }
                }
            },


            _isInDateRange: function (date, part) {
                switch (part) {
                    case "d":
                        if ((this._startDate) && (this._getDateOnly(date) < this._getDateOnly(this._startDate))) { return false; }
                        if ((this._endDate) && (this._getDateOnly(date) > this._getDateOnly(this._endDate))) { return false; }
                        break;
                    case "M":
                        if ((this._startDate) && (this._getMonthOnly(date) < this._getMonthOnly(this._startDate))) { return false; }
                        if ((this._endDate) && (this._getMonthOnly(date) > this._getMonthOnly(this._endDate))) { return false; }
                        break;
                    case "y":
                        if ((this._startDate) && (date.getUTCFullYear() < this._startDate.getUTCFullYear())) { return false; }
                        if ((this._endDate) && (date.getUTCFullYear() > this._endDate.getUTCFullYear())) { return false; }
                        break;
                }
                return true;
            },


            _getDateOnly: function (date) {
                return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate()));
            },


            _getMonthOnly: function (date) {
                return new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth(), 1));
            },



            _convertToUTC: function (value) {
                /// <summary>Converts a local date such as 1/1/2007 into 1/1/2007 GMT 
                /// without adjusting for time zone</summary>
                if (value) {
                    value = new Date(Date.UTC(value.getFullYear(), value.getMonth(), value.getDate(), value.getHours(), value.getMinutes(), value.getSeconds(), value.getMilliseconds()));
                }
                return value;
            },


            _convertToLocal: function (value) {
                /// <summary>Converts a UTC date such as 1/1/2007 GMT into 1/1/2007 without adjusting for time zone</summary>
                /// <param name="value" type="Date">The date to convert</param>

                var result = new Date(value.getUTCFullYear(), value.getUTCMonth(), value.getUTCDate(), value.getUTCHours(), value.getUTCMinutes(), value.getUTCSeconds(), value.getUTCMilliseconds());

                if (result.getDate() != value.getUTCDate()) {
                    result = new Date(value.getUTCFullYear(), value.getUTCMonth(), value.getUTCDate(), value.getUTCHours() + 1, value.getUTCMinutes(), value.getUTCSeconds(), value.getUTCMilliseconds());
                }
                return result;
            },




            _performLayout: function () {
                /// <summmary>
                /// Updates the various views of the calendar to match the current selected and visible dates
                /// </summary>

                var elt = this.get_element();
                if (!elt) return;
                if (!this.get_isInitialized()) return;
                if (!this._isOpen) return;

                var dtf = Sys.CultureInfo.CurrentCulture.dateTimeFormat;
                var selectedDate = this.get_selectedDate();
                var visibleDate = this._getEffectiveVisibleDate();
                var todaysDate = this.get_todaysDate();
                switch (this._mode) {
                    case "days":

                        var firstDayOfWeek = this._getFirstDayOfWeek();
                        var daysToBacktrack = visibleDate.getUTCDay() - firstDayOfWeek;
                        if (daysToBacktrack <= 0)
                            daysToBacktrack += 7;

                        var startDate = new Date(visibleDate);
                        startDate.setUTCDate(startDate.getUTCDate() - daysToBacktrack);
                        var currentDate = new Date(startDate);

                        for (var i = 0; i < 7; i++) {
                            var dayCell = this._daysTableHeaderRow.cells[i].firstChild;
                            if (dayCell.firstChild) {
                                dayCell.removeChild(dayCell.firstChild);
                            }
                            dayCell.appendChild(document.createTextNode(dtf.ShortestDayNames[(i + firstDayOfWeek) % 7]));
                        }
                        for (var week = 0; week < 6; week++) {
                            var weekRow = this._daysBody.rows[week];
                            for (var dayOfWeek = 0; dayOfWeek < 7; dayOfWeek++) {
                                var dayCell = weekRow.cells[dayOfWeek].firstChild;
                                if (dayCell.firstChild) {
                                    dayCell.removeChild(dayCell.firstChild);
                                }
                                dayCell.appendChild(document.createTextNode(currentDate.getUTCDate()));
                                dayCell.title = this._convertToLocal(currentDate).localeFormat("D");
                                dayCell.date = currentDate;
                                $common.removeCssClasses(dayCell.parentNode, ["ajax__calendar_other", "ajax__calendar_active", "ajax__calendar_today"]);

                                if (!this._isInDateRange(currentDate, "d")) {
                                    $common.removeCssClasses(dayCell.parentNode, ["ajax__calendar_other", "ajax__calendar_active"]);
                                    Sys.UI.DomElement.addCssClass(dayCell.parentNode, "ajax__calendar_invalid");
                                } else {
                                    $common.removeCssClasses(dayCell.parentNode, ["ajax__calendar_invalid", "ajax__calendar_other", "ajax__calendar_active", ""]);
                                    Sys.UI.DomElement.addCssClass(dayCell.parentNode, this._getCssClass(dayCell.date, 'd'));
                                }

                                currentDate = new Date(currentDate);
                                currentDate.setUTCDate(currentDate.getUTCDate() + 1);
                            }
                        }

                        this._prevArrow.date = new Date(Date.UTC(visibleDate.getUTCFullYear(), visibleDate.getUTCMonth() - 1, 1));
                        this._nextArrow.date = new Date(Date.UTC(visibleDate.getUTCFullYear(), visibleDate.getUTCMonth() + 1, 1));
                        if (this._title.firstChild) {
                            this._title.removeChild(this._title.firstChild);
                        }

                        this._title.appendChild(document.createTextNode(this._convertToLocal(visibleDate).localeFormat(this.get_daysModeTitleFormat())));
                        this._title.date = visibleDate;

                        break;
                    case "months":
                        for (var i = 0; i < this._monthsBody.rows.length; i++) {
                            var row = this._monthsBody.rows[i];
                            for (var j = 0; j < row.cells.length; j++) {
                                var cell = row.cells[j].firstChild;
                                cell.date = new Date(Date.UTC(visibleDate.getUTCFullYear(), cell.month, 1));
                                cell.title = this._convertToLocal(cell.date).localeFormat("Y");

                                if (!this._isInDateRange(cell.date, "M")) {
                                    $common.removeCssClasses(cell.parentNode, ["ajax__calendar_other", "ajax__calendar_active"]);
                                    Sys.UI.DomElement.addCssClass(cell.parentNode, "ajax__calendar_invalid");
                                }
                                else {

                                    $common.removeCssClasses(cell.parentNode, ["ajax__calendar_invalid", "ajax__calendar_other", "ajax__calendar_active"]);
                                    Sys.UI.DomElement.addCssClass(cell.parentNode, this._getCssClass(cell.date, 'M'));
                                }
                            }
                        }

                        if (this._title.firstChild) {
                            this._title.removeChild(this._title.firstChild);
                        }

                        this._title.appendChild(document.createTextNode(this._convertToLocal(visibleDate).localeFormat("yyyy")));
                        this._title.date = visibleDate;
                        this._prevArrow.date = new Date(Date.UTC(visibleDate.getUTCFullYear() - 1, 0, 1));
                        this._nextArrow.date = new Date(Date.UTC(visibleDate.getUTCFullYear() + 1, 0, 1));

                        break;
                    case "years":

                        var minYear = (Math.floor(visibleDate.getUTCFullYear() / 10) * 10);
                        for (var i = 0; i < this._yearsBody.rows.length; i++) {
                            var row = this._yearsBody.rows[i];
                            for (var j = 0; j < row.cells.length; j++) {
                                var cell = row.cells[j].firstChild;
                                cell.date = new Date(Date.UTC(minYear + cell.year, 0, 1));
                                if (cell.firstChild) {
                                    cell.removeChild(cell.lastChild);
                                } else {
                                    cell.appendChild(document.createElement("br"));
                                }
                                cell.appendChild(document.createTextNode(minYear + cell.year));

                                if (!this._isInDateRange(cell.date, "y")) {
                                    $common.removeCssClasses(cell.parentNode, ["ajax__calendar_other", "ajax__calendar_active"]);
                                    Sys.UI.DomElement.addCssClass(cell.parentNode, "ajax__calendar_invalid");
                                }
                                else {
                                    $common.removeCssClasses(cell.parentNode, ["ajax__calendar_invalid", "ajax__calendar_other", "ajax__calendar_active"]);
                                    Sys.UI.DomElement.addCssClass(cell.parentNode, this._getCssClass(cell.date, 'y'));
                                }
                            }
                        }

                        if (this._title.firstChild) {
                            this._title.removeChild(this._title.firstChild);
                        }

                        this._title.appendChild(document.createTextNode(minYear.toString() + "-" + (minYear + 9).toString()));
                        this._title.date = visibleDate;
                        this._prevArrow.date = new Date(Date.UTC(minYear - 10, 0, 1));
                        this._nextArrow.date = new Date(Date.UTC(minYear + 10, 0, 1));

                        break;
                }
                if (this._today.firstChild) {
                    this._today.removeChild(this._today.firstChild);
                }

                $common.removeCssClasses(this._today.parentNode, ["ajax__calendar_invalid"]);
                this._today.appendChild(document.createTextNode(String.format(Sys.Extended.UI.Resources.Calendar_Today, todaysDate.localeFormat(this.get_todaysDateFormat()))));
                if (!this._isInDateRange(todaysDate, "d")) {
                    Sys.UI.DomElement.addCssClass(this._today.parentNode, "ajax__calendar_invalid");
                }

                this._today.date = this._convertToUTC(todaysDate);
            },

            _ensureCalendar: function () {

                if (!this._container) {

                    var elt = this.get_element();

                    this._buildCalendar();
                    this._buildHeader();
                    this._buildBody();
                    this._buildFooter();

                    this._popupBehavior = new $create(Sys.Extended.UI.PopupBehavior, { parentElement: elt }, {}, {}, this._container);
                    if (this._popupPosition == Sys.Extended.UI.CalendarPosition.TopLeft) {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.TopLeft);
                    } else if (this._popupPosition == Sys.Extended.UI.CalendarPosition.TopRight) {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.TopRight);
                    } else if (this._popupPosition == Sys.Extended.UI.CalendarPosition.BottomRight) {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.BottomRight);
                    } else if (this._popupPosition == Sys.Extended.UI.CalendarPosition.Right) {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.Right);
                    } else if (this._popupPosition == Sys.Extended.UI.CalendarPosition.Left) {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.Left);
                    } else {
                        this._popupBehavior.set_positioningMode(Sys.Extended.UI.PositioningMode.BottomLeft);
                    }
                }
            },

            _fireChanged: function () {
                /// <summary>
                /// Attempts to fire the change event on the attached textbox
                /// </summary>

                var elt = this.get_element();
                if (document.createEventObject) {
                    elt.fireEvent("onchange");
                } else if (document.createEvent) {
                    var e = document.createEvent("HTMLEvents");
                    e.initEvent("change", true, true);
                    elt.dispatchEvent(e);
                }
            },
            _switchMonth: function (date, dontAnimate) {
                /// <summary>
                /// Switches the visible month in the days view
                /// </summary>
                /// <param name="date" type="Date">The visible date to switch to</param>
                /// <param name="dontAnimate" type="Boolean">Prevents animation from occuring if the control is animated</param>

                if (this._isAnimating) {
                    return;
                }


                if (date && !this._canSwitchMonth(date)) {
                    return;
                }

                var visibleDate = this._getEffectiveVisibleDate();
                if ((date && date.getFullYear() == visibleDate.getFullYear() && date.getMonth() == visibleDate.getMonth())) {
                    dontAnimate = true;
                }

                if (this._animated && !dontAnimate) {
                    this._isAnimating = true;

                    var newElement = this._modes[this._mode];
                    var oldElement = newElement.cloneNode(true);
                    this._body.appendChild(oldElement);
                    if (visibleDate > date) {


                        $common.setLocation(newElement, { x: -162, y: 0 });
                        $common.setVisible(newElement, true);
                        this._modeChangeMoveTopOrLeftAnimation.set_propertyKey("left");
                        this._modeChangeMoveTopOrLeftAnimation.set_target(newElement);
                        this._modeChangeMoveTopOrLeftAnimation.set_startValue(-this._width);
                        this._modeChangeMoveTopOrLeftAnimation.set_endValue(0);

                        $common.setLocation(oldElement, { x: 0, y: 0 });
                        $common.setVisible(oldElement, true);
                        this._modeChangeMoveBottomOrRightAnimation.set_propertyKey("left");
                        this._modeChangeMoveBottomOrRightAnimation.set_target(oldElement);
                        this._modeChangeMoveBottomOrRightAnimation.set_startValue(0);
                        this._modeChangeMoveBottomOrRightAnimation.set_endValue(this._width);

                    } else {

                        $common.setLocation(oldElement, { x: 0, y: 0 });
                        $common.setVisible(oldElement, true);
                        this._modeChangeMoveTopOrLeftAnimation.set_propertyKey("left");
                        this._modeChangeMoveTopOrLeftAnimation.set_target(oldElement);
                        this._modeChangeMoveTopOrLeftAnimation.set_endValue(-this._width);
                        this._modeChangeMoveTopOrLeftAnimation.set_startValue(0);

                        $common.setLocation(newElement, { x: 162, y: 0 });
                        $common.setVisible(newElement, true);
                        this._modeChangeMoveBottomOrRightAnimation.set_propertyKey("left");
                        this._modeChangeMoveBottomOrRightAnimation.set_target(newElement);
                        this._modeChangeMoveBottomOrRightAnimation.set_endValue(0);
                        this._modeChangeMoveBottomOrRightAnimation.set_startValue(this._width);
                    }
                    this._visibleDate = date;
                    this.invalidate();

                    var endHandler = Function.createDelegate(this, function () {
                        this._body.removeChild(oldElement);
                        oldElement = null;
                        this._isAnimating = false;
                        this._modeChangeAnimation.remove_ended(endHandler);
                    });
                    this._modeChangeAnimation.add_ended(endHandler);
                    this._modeChangeAnimation.play();
                } else {
                    this._visibleDate = date;
                    this.invalidate();
                }
            },

            _canSwitchMonth: function (date) {
                switch (this._mode) {
                    case "days":
                        if (!this._isInDateRange(date, "M")) {
                            return false;
                        }
                        break;
                    case "months":
                        if (!this._isInDateRange(date, "y")) {
                            return false;
                        }
                        break;
                    case "years":
                        if (!this._isInDateRange(date, "y")) {
                            return false;
                        }
                        break;
                }
                return true;
            },

            _switchMode: function (mode, dontAnimate) {
                /// <summary>
                /// Switches the visible view from "days" to "months" to "years"
                /// </summary>
                /// <param name="mode" type="String">The view mode to switch to</param>
                /// <param name="dontAnimate" type="Boolean">Prevents animation from occuring if the control is animated</param>

                if (this._isAnimating || (this._mode == mode)) {
                    return;
                }

                var moveDown = this._modeOrder[this._mode] < this._modeOrder[mode];
                var oldElement = this._modes[this._mode];
                var newElement = this._modes[mode];
                this._mode = mode;

                if (this._animated && !dontAnimate) {
                    this._isAnimating = true;

                    this.invalidate();

                    if (moveDown) {

                        $common.setLocation(newElement, { x: 0, y: -this._height });
                        $common.setVisible(newElement, true);
                        this._modeChangeMoveTopOrLeftAnimation.set_propertyKey("top");
                        this._modeChangeMoveTopOrLeftAnimation.set_target(newElement);
                        this._modeChangeMoveTopOrLeftAnimation.set_startValue(-this._height);
                        this._modeChangeMoveTopOrLeftAnimation.set_endValue(0);

                        $common.setLocation(oldElement, { x: 0, y: 0 });
                        $common.setVisible(oldElement, true);

                        this._modeChangeMoveBottomOrRightAnimation.set_propertyKey("top");
                        this._modeChangeMoveBottomOrRightAnimation.set_target(oldElement);
                        this._modeChangeMoveBottomOrRightAnimation.set_startValue(0);
                        this._modeChangeMoveBottomOrRightAnimation.set_endValue(this._height);

                    } else {

                        $common.setLocation(oldElement, { x: 0, y: 0 });
                        $common.setVisible(oldElement, true);
                        this._modeChangeMoveTopOrLeftAnimation.set_propertyKey("top");
                        this._modeChangeMoveTopOrLeftAnimation.set_target(oldElement);
                        this._modeChangeMoveTopOrLeftAnimation.set_endValue(-this._height);
                        this._modeChangeMoveTopOrLeftAnimation.set_startValue(0);

                        $common.setLocation(newElement, { x: 0, y: 139 });
                        $common.setVisible(newElement, true);
                        this._modeChangeMoveBottomOrRightAnimation.set_propertyKey("top");
                        this._modeChangeMoveBottomOrRightAnimation.set_target(newElement);
                        this._modeChangeMoveBottomOrRightAnimation.set_endValue(0);
                        this._modeChangeMoveBottomOrRightAnimation.set_startValue(this._height);
                    }
                    var endHandler = Function.createDelegate(this, function () {
                        this._isAnimating = false;
                        this._modeChangeAnimation.remove_ended(endHandler);
                    });
                    this._modeChangeAnimation.add_ended(endHandler);
                    this._modeChangeAnimation.play();
                } else {
                    this._mode = mode;
                    $common.setVisible(oldElement, false);
                    this.invalidate();
                    $common.setVisible(newElement, true);
                    $common.setLocation(newElement, { x: 0, y: 0 });
                }
            },
            _isSelected: function (date, part) {
                /// <summary>
                /// Gets whether the supplied date is the currently selected date
                /// </summary>
                /// <param name="date" type="Date">The date to match</param>
                /// <param name="part" type="String">The most significant part of the date to test</param>
                /// <returns type="Boolean" />

                var value = this.get_selectedDate();
                if (!value) return false;
                switch (part) {
                    case 'd':
                        if (date.getUTCDate() != value.getUTCDate()) return false;
                    case 'M':
                        if (date.getUTCMonth() != value.getUTCMonth()) return false;
                    case 'y':
                        if (date.getUTCFullYear() != value.getUTCFullYear()) return false;
                        break;
                }
                return true;
            },




            _isOther: function (date, part) {
                /// <summary>
                /// Gets whether the supplied date is in a different view from the current visible month
                /// </summary>
                /// <param name="date" type="Date">The date to match</param>
                /// <param name="part" type="String">The most significant part of the date to test</param>
                /// <returns type="Boolean" />

                var value = this._getEffectiveVisibleDate();
                switch (part) {
                    case 'd':
                        return (date.getUTCFullYear() != value.getUTCFullYear() || date.getUTCMonth() != value.getUTCMonth());
                    case 'M':
                        return false;
                    case 'y':
                        var minYear = (Math.floor(value.getUTCFullYear() / 10) * 10);
                        return date.getUTCFullYear() < minYear || (minYear + 10) <= date.getUTCFullYear();
                }
                return false;
            },

            _isTodaysDate: function (date) {
                return this._getDateOnly(this._convertToUTC(this.get_todaysDate())).valueOf() === this._getDateOnly(date).valueOf();
            },

            _getCssClass: function (date, part) {
                /// <summary>
                /// Gets the cssClass to apply to a cell based on a supplied date
                /// </summary>
                /// <param name="date" type="Date">The date to match</param>
                /// <param name="part" type="String">The most significant part of the date to test</param>
                /// <returns type="String" />

                if (this._isSelected(date, part)) {
                    return "ajax__calendar_active";
                } else if (this._isOther(date, part)) {
                    return "ajax__calendar_other";
                } else if (this._isTodaysDate(date)) {
                    return "ajax__calendar_today";
                } else {
                    return "";
                }
            },
            _getEffectiveVisibleDate: function () {
                var value = this.get_visibleDate();
                if (value == null)
                    value = this.get_selectedDate();
                if (value == null)
                    value = this.get_todaysDate();

                value = new Date(value);
                value.setUTCDate(1);

                return this._getDateOnly(value);
            },


            _getFirstDayOfWeek: function () {
                /// <summary>
                /// Gets the first day of the week
                /// </summary>

                if (this.get_firstDayOfWeek() != Sys.Extended.UI.FirstDayOfWeek.Default) {
                    return this.get_firstDayOfWeek();
                }
                return Sys.CultureInfo.CurrentCulture.dateTimeFormat.FirstDayOfWeek;
            },
            _parseTextValue: function (text) {
                /// <summary>
                /// Converts a text value from the textbox into a date
                /// </summary>
                /// <param name="text" type="String" mayBeNull="true">The text value to parse</param>
                /// <returns type="Date" />

                var value = null;
                if (text) {
                    value = this._convertToUTC(Date.parseLocale(text, this.get_format()));
                }
                if (isNaN(value)) {
                    value = null;
                }
                return value;
            },

            _element_onfocus: function (e) {
                /// <summary> 
                /// Handles the focus event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._enabled) return;
                if (!this._button) {
                    this.show();
                    this._popupMouseDown = false;
                }
            },
            _element_onblur: function (e) {
                /// <summary> 
                /// Handles the blur event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>        
                if (!this._enabled) return;
                if (!this._button) {
                    this.blur();
                }
            },
            _element_onchange: function (e) {
                /// <summary> 
                /// Handles the change event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._selectedDateChanging) {
                    var value = this._parseTextValue(this._textbox.get_Value());
                    this._selectedDate = value;
                    if (this._isOpen) {
                        this._switchMonth(this._selectedDate, this._selectedDate == null);
                    }
                }
            },
            _element_onkeypress: function (e) {
                /// <summary>
                /// Handles the keypress event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._enabled) return;
                if (!this._button && e.charCode == Sys.UI.Key.esc) {
                    e.stopPropagation();
                    e.preventDefault();
                    this.hide();
                }
            },
            _element_onclick: function (e) {
                /// <summary>
                /// Handles the click event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._enabled) return;
                if (!this._button) {
                    this.show();
                    this._popupMouseDown = false;
                }
            },

            _popup_onevent: function (e) {
                /// <summary> 
                /// Handles the drag-start event of the popup calendar
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                e.stopPropagation();
                e.preventDefault();
            },
            _popup_onmousedown: function (e) {
                /// <summary> 
                /// Handles the mousedown event of the popup
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                this._popupMouseDown = true;
            },
            _popup_onmouseup: function (e) {
                /// <summary> 
                /// Handles the mouseup event of the popup
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                if (Sys.Browser.agent === Sys.Browser.Opera && this._blur.get_isPending()) {
                    this._blur.cancel();
                }
                this._popupMouseDown = false;
                this.focus();
            },

            _cell_onmouseover: function (e) {
                /// <summary> 
                /// Handles the mouseover event of a cell
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                e.stopPropagation();

                if (Sys.Browser.agent === Sys.Browser.Safari) {
                    for (var i = 0; i < this._daysBody.rows.length; i++) {
                        var row = this._daysBody.rows[i];
                        for (var j = 0; j < row.cells.length; j++) {
                            Sys.UI.DomElement.removeCssClass(row.cells[j].firstChild.parentNode, "ajax__calendar_hover");
                        }
                    }
                }

                var target = e.target;

                Sys.UI.DomElement.addCssClass(target.parentNode, "ajax__calendar_hover");
            },
            _cell_onmouseout: function (e) {
                /// <summary> 
                /// Handles the mouseout event of a cell
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                e.stopPropagation();

                var target = e.target;

                Sys.UI.DomElement.removeCssClass(target.parentNode, "ajax__calendar_hover");
            },
            _cell_onclick: function (e) {
                /// <summary> 
                /// Handles the click event of a cell
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                e.stopPropagation();
                e.preventDefault();

                if (!this._enabled) return;

                var target = e.target;
                if (target.parentNode.className.indexOf("ajax__calendar_invalid") != -1) {
                    return;
                }
                var visibleDate = this._getEffectiveVisibleDate();
                Sys.UI.DomElement.removeCssClass(target.parentNode, "ajax__calendar_hover");
                switch (target.mode) {
                    case "prev":
                    case "next":
                        this._switchMonth(target.date);
                        break;
                    case "title":
                        switch (this._mode) {
                            case "days": this._switchMode("months"); break;
                            case "months": this._switchMode("years"); break;
                        }
                        break;
                    case "month":
                        if (target.month == visibleDate.getUTCMonth()) {
                            this._switchMode("days");
                        } else {
                            this._visibleDate = target.date;
                            this._switchMode("days");
                        }
                        break;
                    case "year":
                        if (target.date.getFullYear() == visibleDate.getFullYear()) {
                            this._switchMode("months");
                        } else {
                            this._visibleDate = target.date;
                            this._switchMode("months");
                        }
                        break;
                    case "day":
                        this.set_selectedDate(target.date);
                        this._switchMonth(target.date);
                        this._blur.post(true);
                        this.raiseDateSelectionChanged();
                        break;
                    case "today":
                        this.set_selectedDate(target.date);
                        this._switchMonth(target.date);
                        this._blur.post(true);
                        this.raiseDateSelectionChanged();
                        break;
                }
            },

            _button_onclick: function (e) {
                /// <summary> 
                /// Handles the click event of the asociated button
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>

                e.preventDefault();
                e.stopPropagation();

                if (!this._enabled) return;
                if (e.clientX == 0) return;

                if (!this._isOpen) {
                    this.show();
                } else {
                    this.hide();
                }
                this.focus();
                this._popupMouseDown = false;
                if (this._visibleDate != this._selectedDate) {
                    this._visibleDate = this._selectedDate
                    this.invalidate();
                }
            },
            _button_onblur: function (e) {
                /// <summary> 
                /// Handles the blur event of the button
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._enabled) return;
                if (!this._popupMouseDown) {
                    this.hide();
                }
                this._popupMouseDown = false;
            },
            _button_onkeypress: function (e) {
                /// <summary>
                /// Handles the keypress event of the element
                /// </summary>
                /// <param name="e" type="Sys.UI.DomEvent">The arguments for the event</param>
                if (!this._enabled) return;
                if (e.charCode == Sys.UI.Key.esc) {
                    e.stopPropagation();
                    e.preventDefault();
                    this.hide();
                }
                this._popupMouseDown = false;
            }
        }
        Sys.Extended.UI.CalendarBehavior.registerClass("Sys.Extended.UI.CalendarBehavior", Sys.Extended.UI.BehaviorBase);
        Sys.registerComponent(Sys.Extended.UI.CalendarBehavior, { name: "calendar" });

        Sys.Extended.UI.CalendarPosition = function () {
            /// <summary>
            /// Position of the popup relative to the target control
            /// </summary>
            /// <field name="BottomLeft" type="Number" integer="true" />
            /// <field name="BottomRight" type="Number" integer="true" />
            /// <field name="TopLeft" type="Number" integer="true" />
            /// <field name="TopRight" type="Number" integer="true" />
            /// <field name="Right" type="Number" integer="true" />
            /// <field name="Left" type="Number" integer="true" />
            throw Error.invalidOperation();
        }
        Sys.Extended.UI.CalendarPosition.prototype = {
            BottomLeft: 0,
            BottomRight: 1,
            TopLeft: 2,
            TopRight: 3,
            Right: 4,
            Left: 5
        }
        Sys.Extended.UI.CalendarPosition.registerEnum('Sys.Extended.UI.CalendarPosition');

        Sys.Extended.UI.CalendarDefaultView = function () {
            /// <summary>
            /// Choices for default view of the calendar when it first pops up.
            /// </summary>
            /// <field name="Days" type="Number" integer="true" />
            /// <field name="Months" type="Number" integer="true" />
            /// <field name="Years" type="Number" integer="true" />
            throw Error.invalidOperation();
        }
        Sys.Extended.UI.CalendarDefaultView.prototype = {
            Days: 0,
            Months: 1,
            Years: 2
        }
        Sys.Extended.UI.CalendarDefaultView.registerEnum('Sys.Extended.UI.CalendarDefaultView');

    } // execute

    if (window.Sys && Sys.loader) {
        Sys.loader.registerScript(scriptName, ["Globalization", "ExtendedBase", "ExtendedDateTime", "ExtendedThreading", "ExtendedAnimationBehavior", "ExtendedPopup"], execute);
    }
    else {
        execute();
    }

})();