var ProgressOverlay=Class.create({initialize:function(options){this.options=options;this.context={};this.browserVersion=new BrowserVersion();this._initializeDefaults();this._initializeOverlay();this._initializeContent()},_initializeDefaults:function(){if(undefined==this.options.closeButton){this.options.closeButton=true}if(undefined==this.options.backgroundColor){this.options.backgroundColor="#1B1B1B;"}},_initializeOverlay:function(){this._body().appendChild(this._background());this._createForm();this.options.display=this._createMessageOverlay();this._displayForm().appendChild(this.options.display)},_createMessageOverlay:function(){var parentDiv=new Element("div",{id:"parentDiv"});if(this.options.message){var messageDiv=this._createMessageDiv();parentDiv.appendChild(messageDiv)}var imageDiv=new Element("div").update(this._loadingImage());parentDiv.appendChild(imageDiv);return parentDiv},_createMessageDiv:function(){return new Element("div",{"class":"message_text"}).update(this.options.message)},_createForm:function(){this._body().appendChild(new Element("form",{id:"displayForm",method:"get",style:"height:100%"}))},_displayForm:function(){return $("displayForm")},_form:function(){return $$("form").first()},_body:function(){return $$("body").first()},_background:function(){var color=this.options.backgroundColor;var background=new Element("div",{id:"overlay"+Math.random(),style:"opacity:0.9;background-color:"+this.options.backgroundColor+"display:none;left:0;position:absolute;top:0;z-index:999;"});this.context.overlayId=background.id;return background},_initializeContent:function(){this.dialogContentName="dialogcontent";if($(this.options.display)){this.dialogContentName+=$(this.options.display).id}this._body().appendChild(this._createContent());this._center();$(this.options.display).wrap(this._content())},_createContent:function(suffix){var content;var position=this.browserVersion.IE6?"absolute;":"fixed;";content=new Element("div",{id:this.dialogContentName,"class":"dialogcontent",style:"display:none;height:350px;position:"+position+"width:350px;z-index:1000;"});if(this.options.dimensions){content.style.height=this.options.dimensions.height;content.style.width=this.options.dimensions.width}this.context.dialogContentId=content.id;return content},show:function(){this._attachModalDialogBehavior();this._showOverlay();this._showDialog()},_attachModalDialogBehavior:function(){var that=this;window.onresize=this._adustOverlayAndContent.bindAsEventListener(this);if(this.browserVersion.IE6){window.onscroll=this._adustOverlayAndContent.bindAsEventListener(this)}document.observe("keypress",this._disableKeyUpKeyDown.bindAsEventListener(this))},_adustOverlayAndContent:function(){with(this){_center();_resizeOverlay()}},_center:function(){top_position=document.viewport.getHeight()/2-(this._content().getHeight()/2);left_position=document.viewport.getWidth()/2-(this._content().getWidth()/2);this._content().setStyle({top:top_position+"px"});this._content().setStyle({left:left_position+"px"})},_resizeOverlay:function(){this._overlay().setStyle({height:this._pageSize()[1]+"px"});this._overlay().setStyle({width:"100%"})},_disableKeyUpKeyDown:function(e){if(!e){var e=window.event}if(e.keyCode==Event.KEY_DOWN||e.keyCode==Event.KEY_UP||e.keyCode==Event.KEY_PAGEDOWN){if(this._isOverlayVisible()){Event.stop(e)}}},_isOverlayVisible:function(){return this._content().visible()},_showOverlay:function(){this._resizeOverlay();Effect.Appear(this._overlay(),{from:0,to:0.6,duration:0.3})},_showDialog:function(){Effect.Appear(this._content(),{from:0.6,to:1,duration:0.5});this._updateNonAjaxContent()},_loadingImage:function(){return"<div class='img_loading_spl' ><img src='https://a248.e.akamai.net/f/248/12085/15m/content.announcements.uk.com/TTLWEB/TTL/T3/R2_9/images/loading.gif'/></div>"},_updateNonAjaxContent:function(){with(this){_content().hide();_center();_showContent()}},_showContent:function(){with(this){_content().show()}},closeDialog:function(){this.hideDialog();this.hideOverlay()},hideDialog:function(){this._dettachModalDialogBehavior();this._hideContent();this.hideOverlay()},_dettachModalDialogBehavior:function(){document.stopObserving("keypress");window.onresize=function(){}},hideOverlay:function(){Effect.Fade(this._overlay(),{duration:0.2})},_hideContent:function(){Effect.Fade(this._content(),{duration:0.2});if($("parentDiv")){$("parentDiv").remove()}},_overlay:function(){return $(this.context.overlayId)},_content:function(){return $(this.context.dialogContentId)},_pageSize:function(){var xScroll,yScroll;if(window.innerHeight&&window.scrollMaxY){xScroll=document.body.scrollWidth;yScroll=window.innerHeight+window.scrollMaxY}else{if(document.body.scrollHeight>document.body.offsetHeight){xScroll=document.body.scrollWidth;yScroll=document.body.scrollHeight}else{xScroll=document.body.offsetWidth;yScroll=document.body.offsetHeight}}var windowWidth,windowHeight;if(self.innerHeight){windowWidth=self.innerWidth;windowHeight=self.innerHeight}else{if(document.documentElement&&document.documentElement.clientHeight){windowWidth=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight}else{if(document.body){windowWidth=document.body.clientWidth;windowHeight=document.body.clientHeight}}}if(yScroll<windowHeight){pageHeight=windowHeight}else{pageHeight=yScroll}if(xScroll<windowWidth){pageWidth=windowWidth}else{pageWidth=xScroll}arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight);return arrayPageSize}});