text: /*!
   * jQuery UI Dialog 1.11.4
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   *
   * http://api.jqueryui.com/dialog/
   */
  (function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define([
  			"jquery",
  			"./core",
  			"./widget",
  			"./button",
  			"./draggable",
  			"./mouse",
  			"./position",
  			"./resizable"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }(function( $ ) {
  
  return $.widget( "ui.dialog", {
  	version: "1.11.4",
  	options: {
  		appendTo: "body",
  		autoOpen: true,
  		buttons: [],
  		closeOnEscape: true,
  		closeText: "Close",
  		dialogClass: "",
  		draggable: true,
  		hide: null,
  		height: "auto",
  		maxHeight: null,
  		maxWidth: null,
  		minHeight: 150,
  		minWidth: 150,
  		modal: false,
  		position: {
  			my: "center",
  			at: "center",
  			of: window,
  			collision: "fit",
  			// Ensure the titlebar is always visible
  			using: function( pos ) {
  				var topOffset = $( this ).css( pos ).offset().top;
  				if ( topOffset < 0 ) {
  					$( this ).css( "top", pos.top - topOffset );
  				}
  			}
  		},
  		resizable: true,
  		show: null,
  		title: null,
  		width: 300,
  
  		// callbacks
  		beforeClose: null,
  		close: null,
  		drag: null,
  		dragStart: null,
  		dragStop: null,
  		focus: null,
  		open: null,
  		resize: null,
  		resizeStart: null,
  		resizeStop: null
  	},
  
  	sizeRelatedOptions: {
  		buttons: true,
  		height: true,
  		maxHeight: true,
  		maxWidth: true,
  		minHeight: true,
  		minWidth: true,
  		width: true
  	},
  
  	resizableRelatedOptions: {
  		maxHeight: true,
  		maxWidth: true,
  		minHeight: true,
  		minWidth: true
  	},
  
  	_create: function() {
  		this.originalCss = {
  			display: this.element[ 0 ].style.display,
  			width: this.element[ 0 ].style.width,
  			minHeight: this.element[ 0 ].style.minHeight,
  			maxHeight: this.element[ 0 ].style.maxHeight,
  			height: this.element[ 0 ].style.height
  		};
  		this.originalPosition = {
  			parent: this.element.parent(),
  			index: this.element.parent().children().index( this.element )
  		};
  		this.originalTitle = this.element.attr( "title" );
  		this.options.title = this.options.title || this.originalTitle;
  
  		this._createWrapper();
  
  		this.element
  			.show()
  			.removeAttr( "title" )
  			.addClass( "ui-dialog-content ui-widget-content" )
  			.appendTo( this.uiDialog );
  
  		this._createTitlebar();
  		this._createButtonPane();
  
  		if ( this.options.draggable && $.fn.draggable ) {
  			this._makeDraggable();
  		}
  		if ( this.options.resizable && $.fn.resizable ) {
  			this._makeResizable();
  		}
  
  		this._isOpen = false;
  
  		this._trackFocus();
  	},
  
  	_init: function() {
  		if ( this.options.autoOpen ) {
  			this.open();
  		}
  	},
  
  	_appendTo: function() {
  		var element = this.options.appendTo;
  		if ( element && (element.jquery || element.nodeType) ) {
  			return $( element );
  		}
  		return this.document.find( element || "body" ).eq( 0 );
  	},
  
  	_destroy: function() {
  		var next,
  			originalPosition = this.originalPosition;
  
  		this._untrackInstance();
  		this._destroyOverlay();
  
  		this.element
  			.removeUniqueId()
  			.removeClass( "ui-dialog-content ui-widget-content" )
  			.css( this.originalCss )
  			// Without detaching first, the following becomes really slow
  			.detach();
  
  		this.uiDialog.stop( true, true ).remove();
  
  		if ( this.originalTitle ) {
  			this.element.attr( "title", this.originalTitle );
  		}
  
  		next = originalPosition.parent.children().eq( originalPosition.index );
  		// Don't try to place the dialog next to itself (#8613)
  		if ( next.length && next[ 0 ] !== this.element[ 0 ] ) {
  			next.before( this.element );
  		} else {
  			originalPosition.parent.append( this.element );
  		}
  	},
  
  	widget: function() {
  		return this.uiDialog;
  	},
  
  	disable: $.noop,
  	enable: $.noop,
  
  	close: function( event ) {
  		var activeElement,
  			that = this;
  
  		if ( !this._isOpen || this._trigger( "beforeClose", event ) === false ) {
  			return;
  		}
  
  		this._isOpen = false;
  		this._focusedElement = null;
  		this._destroyOverlay();
  		this._untrackInstance();
  
  		if ( !this.opener.filter( ":focusable" ).focus().length ) {
  
  			// support: IE9
  			// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
  			try {
  				activeElement = this.document[ 0 ].activeElement;
  
  				// Support: IE9, IE10
  				// If the <body> is blurred, IE will switch windows, see #4520
  				if ( activeElement && activeElement.nodeName.toLowerCase() !== "body" ) {
  
  					// Hiding a focused element doesn't trigger blur in WebKit
  					// so in case we have nothing to focus on, explicitly blur the visible element
  					// https://bugs.webkit.org/show_bug.cgi?id=47182
  					$( activeElement ).blur();
  				}
  			} catch ( error ) {}
  		}
  
  		this._hide( this.uiDialog, this.options.hide, function() {
  			that._trigger( "close", event );
  		});
  	},
  
  	isOpen: function() {
  		return this._isOpen;
  	},
  
  	moveToTop: function() {
  		this._moveToTop();
  	},
  
  	_moveToTop: function( event, silent ) {
  		var moved = false,
  			zIndices = this.uiDialog.siblings( ".ui-front:visible" ).map(function() {
  				return +$( this ).css( "z-index" );
  			}).get(),
  			zIndexMax = Math.max.apply( null, zIndices );
  
  		if ( zIndexMax >= +this.uiDialog.css( "z-index" ) ) {
  			this.uiDialog.css( "z-index", zIndexMax + 1 );
  			moved = true;
  		}
  
  		if ( moved && !silent ) {
  			this._trigger( "focus", event );
  		}
  		return moved;
  	},
  
  	open: function() {
  		var that = this;
  		if ( this._isOpen ) {
  			if ( this._moveToTop() ) {
  				this._focusTabbable();
  			}
  			return;
  		}
  
  		this._isOpen = true;
  		this.opener = $( this.document[ 0 ].activeElement );
  
  		this._size();
  		this._position();
  		this._createOverlay();
  		this._moveToTop( null, true );
  
  		// Ensure the overlay is moved to the top with the dialog, but only when
  		// opening. The overlay shouldn't move after the dialog is open so that
  		// modeless dialogs opened after the modal dialog stack properly.
  		if ( this.overlay ) {
  			this.overlay.css( "z-index", this.uiDialog.css( "z-index" ) - 1 );
  		}
  
  		this._show( this.uiDialog, this.options.show, function() {
  			that._focusTabbable();
  			that._trigger( "focus" );
  		});
  
  		// Track the dialog immediately upon openening in case a focus event
  		// somehow occurs outside of the dialog before an element inside the
  		// dialog is focused (#10152)
  		this._makeFocusTarget();
  
  		this._trigger( "open" );
  	},
  
  	_focusTabbable: function() {
  		// Set focus to the first match:
  		// 1. An element that was focused previously
  		// 2. First element inside the dialog matching [autofocus]
  		// 3. Tabbable element inside the content element
  		// 4. Tabbable element inside the buttonpane
  		// 5. The close button
  		// 6. The dialog itself
  		var hasFocus = this._focusedElement;
  		if ( !hasFocus ) {
  			hasFocus = this.element.find( "[autofocus]" );
  		}
  		if ( !hasFocus.length ) {
  			hasFocus = this.element.find( ":tabbable" );
  		}
  		if ( !hasFocus.length ) {
  			hasFocus = this.uiDialogButtonPane.find( ":tabbable" );
  		}
  		if ( !hasFocus.length ) {
  			hasFocus = this.uiDialogTitlebarClose.filter( ":tabbable" );
  		}
  		if ( !hasFocus.length ) {
  			hasFocus = this.uiDialog;
  		}
  		hasFocus.eq( 0 ).focus();
  	},
  
  	_keepFocus: function( event ) {
  		function checkFocus() {
  			var activeElement = this.document[0].activeElement,
  				isActive = this.uiDialog[0] === activeElement ||
  					$.contains( this.uiDialog[0], activeElement );
  			if ( !isActive ) {
  				this._focusTabbable();
  			}
  		}
  		event.preventDefault();
  		checkFocus.call( this );
  		// support: IE
  		// IE <= 8 doesn't prevent moving focus even with event.preventDefault()
  		// so we check again later
  		this._delay( checkFocus );
  	},
  
  	_createWrapper: function() {
  		this.uiDialog = $("<div>")
  			.addClass( "ui-dialog ui-widget ui-widget-content ui-corner-all ui-front " +
  				this.options.dialogClass )
  			.hide()
  			.attr({
  				// Setting tabIndex makes the div focusable
  				tabIndex: -1,
  				role: "dialog"
  			})
  			.appendTo( this._appendTo() );
  
  		this._on( this.uiDialog, {
  			keydown: function( event ) {
  				if ( this.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
  						event.keyCode === $.ui.keyCode.ESCAPE ) {
  					event.preventDefault();
  					this.close( event );
  					return;
  				}
  
  				// prevent tabbing out of dialogs
  				if ( event.keyCode !== $.ui.keyCode.TAB || event.isDefaultPrevented() ) {
  					return;
  				}
  				var tabbables = this.uiDialog.find( ":tabbable" ),
  					first = tabbables.filter( ":first" ),
  					last = tabbables.filter( ":last" );
  
  				if ( ( event.target === last[0] || event.target === this.uiDialog[0] ) && !event.shiftKey ) {
  					this._delay(function() {
  						first.focus();
  					});
  					event.preventDefault();
  				} else if ( ( event.target === first[0] || event.target === this.uiDialog[0] ) && event.shiftKey ) {
  					this._delay(function() {
  						last.focus();
  					});
  					event.preventDefault();
  				}
  			},
  			mousedown: function( event ) {
  				if ( this._moveToTop( event ) ) {
  					this._focusTabbable();
  				}
  			}
  		});
  
  		// We assume that any existing aria-describedby attribute means
  		// that the dialog content is marked up properly
  		// otherwise we brute force the content as the description
  		if ( !this.element.find( "[aria-describedby]" ).length ) {
  			this.uiDialog.attr({
  				"aria-describedby": this.element.uniqueId().attr( "id" )
  			});
  		}
  	},
  
  	_createTitlebar: function() {
  		var uiDialogTitle;
  
  		this.uiDialogTitlebar = $( "<div>" )
  			.addClass( "ui-dialog-titlebar ui-widget-header ui-corner-all ui-helper-clearfix" )
  			.prependTo( this.uiDialog );
  		this._on( this.uiDialogTitlebar, {
  			mousedown: function( event ) {
  				// Don't prevent click on close button (#8838)
  				// Focusing a dialog that is partially scrolled out of view
  				// causes the browser to scroll it into view, preventing the click event
  				if ( !$( event.target ).closest( ".ui-dialog-titlebar-close" ) ) {
  					// Dialog isn't getting focus when dragging (#8063)
  					this.uiDialog.focus();
  				}
  			}
  		});
  
  		// support: IE
  		// Use type="button" to prevent enter keypresses in textboxes from closing the
  		// dialog in IE (#9312)
  		this.uiDialogTitlebarClose = $( "<button type='button'></button>" )
  			.button({
  				label: this.options.closeText,
  				icons: {
  					primary: "ui-icon-closethick"
  				},
  				text: false
  			})
  			.addClass( "ui-dialog-titlebar-close" )
  			.appendTo( this.uiDialogTitlebar );
  		this._on( this.uiDialogTitlebarClose, {
  			click: function( event ) {
  				event.preventDefault();
  				this.close( event );
  			}
  		});
  
  		uiDialogTitle = $( "<span>" )
  			.uniqueId()
  			.addClass( "ui-dialog-title" )
  			.prependTo( this.uiDialogTitlebar );
  		this._title( uiDialogTitle );
  
  		this.uiDialog.attr({
  			"aria-labelledby": uiDialogTitle.attr( "id" )
  		});
  	},
  
  	_title: function( title ) {
  		if ( !this.options.title ) {
  			title.html( "&#160;" );
  		}
  		title.text( this.options.title );
  	},
  
  	_createButtonPane: function() {
  		this.uiDialogButtonPane = $( "<div>" )
  			.addClass( "ui-dialog-buttonpane ui-widget-content ui-helper-clearfix" );
  
  		this.uiButtonSet = $( "<div>" )
  			.addClass( "ui-dialog-buttonset" )
  			.appendTo( this.uiDialogButtonPane );
  
  		this._createButtons();
  	},
  
  	_createButtons: function() {
  		var that = this,
  			buttons = this.options.buttons;
  
  		// if we already have a button pane, remove it
  		this.uiDialogButtonPane.remove();
  		this.uiButtonSet.empty();
  
  		if ( $.isEmptyObject( buttons ) || ($.isArray( buttons ) && !buttons.length) ) {
  			this.uiDialog.removeClass( "ui-dialog-buttons" );
  			return;
  		}
  
  		$.each( buttons, function( name, props ) {
  			var click, buttonOptions;
  			props = $.isFunction( props ) ?
  				{ click: props, text: name } :
  				props;
  			// Default to a non-submitting button
  			props = $.extend( { type: "button" }, props );
  			// Change the context for the click callback to be the main element
  			click = props.click;
  			props.click = function() {
  				click.apply( that.element[ 0 ], arguments );
  			};
  			buttonOptions = {
  				icons: props.icons,
  				text: props.showText
  			};
  			delete props.icons;
  			delete props.showText;
  			$( "<button></button>", props )
  				.button( buttonOptions )
  				.appendTo( that.uiButtonSet );
  		});
  		this.uiDialog.addClass( "ui-dialog-buttons" );
  		this.uiDialogButtonPane.appendTo( this.uiDialog );
  	},
  
  	_makeDraggable: function() {
  		var that = this,
  			options = this.options;
  
  		function filteredUi( ui ) {
  			return {
  				position: ui.position,
  				offset: ui.offset
  			};
  		}
  
  		this.uiDialog.draggable({
  			cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
  			handle: ".ui-dialog-titlebar",
  			containment: "document",
  			start: function( event, ui ) {
  				$( this ).addClass( "ui-dialog-dragging" );
  				that._blockFrames();
  				that._trigger( "dragStart", event, filteredUi( ui ) );
  			},
  			drag: function( event, ui ) {
  				that._trigger( "drag", event, filteredUi( ui ) );
  			},
  			stop: function( event, ui ) {
  				var left = ui.offset.left - that.document.scrollLeft(),
  					top = ui.offset.top - that.document.scrollTop();
  
  				options.position = {
  					my: "left top",
  					at: "left" + (left >= 0 ? "+" : "") + left + " " +
  						"top" + (top >= 0 ? "+" : "") + top,
  					of: that.window
  				};
  				$( this ).removeClass( "ui-dialog-dragging" );
  				that._unblockFrames();
  				that._trigger( "dragStop", event, filteredUi( ui ) );
  			}
  		});
  	},
  
  	_makeResizable: function() {
  		var that = this,
  			options = this.options,
  			handles = options.resizable,
  			// .ui-resizable has position: relative defined in the stylesheet
  			// but dialogs have to use absolute or fixed positioning
  			position = this.uiDialog.css("position"),
  			resizeHandles = typeof handles === "string" ?
  				handles	:
  				"n,e,s,w,se,sw,ne,nw";
  
  		function filteredUi( ui ) {
  			return {
  				originalPosition: ui.originalPosition,
  				originalSize: ui.originalSize,
  				position: ui.position,
  				size: ui.size
  			};
  		}
  
  		this.uiDialog.resizable({
  			cancel: ".ui-dialog-content",
  			containment: "document",
  			alsoResize: this.element,
  			maxWidth: options.maxWidth,
  			maxHeight: options.maxHeight,
  			minWidth: options.minWidth,
  			minHeight: this._minHeight(),
  			handles: resizeHandles,
  			start: function( event, ui ) {
  				$( this ).addClass( "ui-dialog-resizing" );
  				that._blockFrames();
  				that._trigger( "resizeStart", event, filteredUi( ui ) );
  			},
  			resize: function( event, ui ) {
  				that._trigger( "resize", event, filteredUi( ui ) );
  			},
  			stop: function( event, ui ) {
  				var offset = that.uiDialog.offset(),
  					left = offset.left - that.document.scrollLeft(),
  					top = offset.top - that.document.scrollTop();
  
  				options.height = that.uiDialog.height();
  				options.width = that.uiDialog.width();
  				options.position = {
  					my: "left top",
  					at: "left" + (left >= 0 ? "+" : "") + left + " " +
  						"top" + (top >= 0 ? "+" : "") + top,
  					of: that.window
  				};
  				$( this ).removeClass( "ui-dialog-resizing" );
  				that._unblockFrames();
  				that._trigger( "resizeStop", event, filteredUi( ui ) );
  			}
  		})
  		.css( "position", position );
  	},
  
  	_trackFocus: function() {
  		this._on( this.widget(), {
  			focusin: function( event ) {
  				this._makeFocusTarget();
  				this._focusedElement = $( event.target );
  			}
  		});
  	},
  
  	_makeFocusTarget: function() {
  		this._untrackInstance();
  		this._trackingInstances().unshift( this );
  	},
  
  	_untrackInstance: function() {
  		var instances = this._trackingInstances(),
  			exists = $.inArray( this, instances );
  		if ( exists !== -1 ) {
  			instances.splice( exists, 1 );
  		}
  	},
  
  	_trackingInstances: function() {
  		var instances = this.document.data( "ui-dialog-instances" );
  		if ( !instances ) {
  			instances = [];
  			this.document.data( "ui-dialog-instances", instances );
  		}
  		return instances;
  	},
  
  	_minHeight: function() {
  		var options = this.options;
  
  		return options.height === "auto" ?
  			options.minHeight :
  			Math.min( options.minHeight, options.height );
  	},
  
  	_position: function() {
  		// Need to show the dialog to get the actual offset in the position plugin
  		var isVisible = this.uiDialog.is( ":visible" );
  		if ( !isVisible ) {
  			this.uiDialog.show();
  		}
  		this.uiDialog.position( this.options.position );
  		if ( !isVisible ) {
  			this.uiDialog.hide();
  		}
  	},
  
  	_setOptions: function( options ) {
  		var that = this,
  			resize = false,
  			resizableOptions = {};
  
  		$.each( options, function( key, value ) {
  			that._setOption( key, value );
  
  			if ( key in that.sizeRelatedOptions ) {
  				resize = true;
  			}
  			if ( key in that.resizableRelatedOptions ) {
  				resizableOptions[ key ] = value;
  			}
  		});
  
  		if ( resize ) {
  			this._size();
  			this._position();
  		}
  		if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
  			this.uiDialog.resizable( "option", resizableOptions );
  		}
  	},
  
  	_setOption: function( key, value ) {
  		var isDraggable, isResizable,
  			uiDialog = this.uiDialog;
  
  		if ( key === "dialogClass" ) {
  			uiDialog
  				.removeClass( this.options.dialogClass )
  				.addClass( value );
  		}
  
  		if ( key === "disabled" ) {
  			return;
  		}
  
  		this._super( key, value );
  
  		if ( key === "appendTo" ) {
  			this.uiDialog.appendTo( this._appendTo() );
  		}
  
  		if ( key === "buttons" ) {
  			this._createButtons();
  		}
  
  		if ( key === "closeText" ) {
  			this.uiDialogTitlebarClose.button({
  				// Ensure that we always pass a string
  				label: "" + value
  			});
  		}
  
  		if ( key === "draggable" ) {
  			isDraggable = uiDialog.is( ":data(ui-draggable)" );
  			if ( isDraggable && !value ) {
  				uiDialog.draggable( "destroy" );
  			}
  
  			if ( !isDraggable && value ) {
  				this._makeDraggable();
  			}
  		}
  
  		if ( key === "position" ) {
  			this._position();
  		}
  
  		if ( key === "resizable" ) {
  			// currently resizable, becoming non-resizable
  			isResizable = uiDialog.is( ":data(ui-resizable)" );
  			if ( isResizable && !value ) {
  				uiDialog.resizable( "destroy" );
  			}
  
  			// currently resizable, changing handles
  			if ( isResizable && typeof value === "string" ) {
  				uiDialog.resizable( "option", "handles", value );
  			}
  
  			// currently non-resizable, becoming resizable
  			if ( !isResizable && value !== false ) {
  				this._makeResizable();
  			}
  		}
  
  		if ( key === "title" ) {
  			this._title( this.uiDialogTitlebar.find( ".ui-dialog-title" ) );
  		}
  	},
  
  	_size: function() {
  		// If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
  		// divs will both have width and height set, so we need to reset them
  		var nonContentHeight, minContentHeight, maxContentHeight,
  			options = this.options;
  
  		// Reset content sizing
  		this.element.show().css({
  			width: "auto",
  			minHeight: 0,
  			maxHeight: "none",
  			height: 0
  		});
  
  		if ( options.minWidth > options.width ) {
  			options.width = options.minWidth;
  		}
  
  		// reset wrapper sizing
  		// determine the height of all the non-content elements
  		nonContentHeight = this.uiDialog.css({
  				height: "auto",
  				width: options.width
  			})
  			.outerHeight();
  		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
  		maxContentHeight = typeof options.maxHeight === "number" ?
  			Math.max( 0, options.maxHeight - nonContentHeight ) :
  			"none";
  
  		if ( options.height === "auto" ) {
  			this.element.css({
  				minHeight: minContentHeight,
  				maxHeight: maxContentHeight,
  				height: "auto"
  			});
  		} else {
  			this.element.height( Math.max( 0, options.height - nonContentHeight ) );
  		}
  
  		if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
  			this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
  		}
  	},
  
  	_blockFrames: function() {
  		this.iframeBlocks = this.document.find( "iframe" ).map(function() {
  			var iframe = $( this );
  
  			return $( "<div>" )
  				.css({
  					position: "absolute",
  					width: iframe.outerWidth(),
  					height: iframe.outerHeight()
  				})
  				.appendTo( iframe.parent() )
  				.offset( iframe.offset() )[0];
  		});
  	},
  
  	_unblockFrames: function() {
  		if ( this.iframeBlocks ) {
  			this.iframeBlocks.remove();
  			delete this.iframeBlocks;
  		}
  	},
  
  	_allowInteraction: function( event ) {
  		if ( $( event.target ).closest( ".ui-dialog" ).length ) {
  			return true;
  		}
  
  		// TODO: Remove hack when datepicker implements
  		// the .ui-front logic (#8989)
  		return !!$( event.target ).closest( ".ui-datepicker" ).length;
  	},
  
  	_createOverlay: function() {
  		if ( !this.options.modal ) {
  			return;
  		}
  
  		// We use a delay in case the overlay is created from an
  		// event that we're going to be cancelling (#2804)
  		var isOpening = true;
  		this._delay(function() {
  			isOpening = false;
  		});
  
  		if ( !this.document.data( "ui-dialog-overlays" ) ) {
  
  			// Prevent use of anchors and inputs
  			// Using _on() for an event handler shared across many instances is
  			// safe because the dialogs stack and must be closed in reverse order
  			this._on( this.document, {
  				focusin: function( event ) {
  					if ( isOpening ) {
  						return;
  					}
  
  					if ( !this._allowInteraction( event ) ) {
  						event.preventDefault();
  						this._trackingInstances()[ 0 ]._focusTabbable();
  					}
  				}
  			});
  		}
  
  		this.overlay = $( "<div>" )
  			.addClass( "ui-widget-overlay ui-front" )
  			.appendTo( this._appendTo() );
  		this._on( this.overlay, {
  			mousedown: "_keepFocus"
  		});
  		this.document.data( "ui-dialog-overlays",
  			(this.document.data( "ui-dialog-overlays" ) || 0) + 1 );
  	},
  
  	_destroyOverlay: function() {
  		if ( !this.options.modal ) {
  			return;
  		}
  
  		if ( this.overlay ) {
  			var overlays = this.document.data( "ui-dialog-overlays" ) - 1;
  
  			if ( !overlays ) {
  				this.document
  					.unbind( "focusin" )
  					.removeData( "ui-dialog-overlays" );
  			} else {
  				this.document.data( "ui-dialog-overlays", overlays );
  			}
  
  			this.overlay.remove();
  			this.overlay = null;
  		}
  	}
  });
  
  }));
  