rem: this.__progressBarMask.src = "blank.html"; 
add: this.__progressBarMask.src = "birt/pages/common/blank.html"; 
context: 	initialize: function(useIframe, opacity)	{		this.zIndexCurrent = this.zIndexBase;				if(useIframe)		{			this.__useIFrame = true;			this.__mask = document.createElement( 'iframe' );			// Workaround for IE https secure warning			this.__mask.src = "blank.html";		}		else		{			this.__useIFrame = false;			this.__mask = document.createElement( 'div' );		}				//default opacity to zero		if(opacity)		{			debug("setting opacity to : " + opacity);			this.opacity = opacity;		}		document.body.appendChild( this.__mask );		this.__mask.style.position = 'absolute';		this.__mask.style.top = '0px';		this.__mask.style.left = '0px';		var width = birtUtility.clientWidth();		this.__mask.style.width = width + 'px';		var height = birtUtility.clientHeight();		this.__mask.style.height = height + 'px';		this.__mask.style.zIndex = '200';		this.__mask.style.backgroundColor = '#0044ff';		this.__mask.style.filter = 'alpha( opacity=' + ( this.opacity * 100 ) + ')';		this.__mask.style.opacity = this.opacity;		this.__mask.scrolling = 'no';		this.__mask.marginHeight = '0px';		this.__mask.marginWidth = '0px';		this.__mask.style.display = 'none';		// Support low version Mozilla/NS		this.__mask.style.MozOpacity = 0;				if(useIframe)		{			this.__useIFrame = true;			this.__progressBarMask = document.createElement( 'iframe' );			// Workaround for IE https secure warning			this.__progressBarMask.src = "blank.html";		}		else		{			this.__useIFrame = false;			this.__progressBarMask = document.createElement( 'div' );		}			document.body.appendChild( this.__progressBarMask );		this.__progressBarMask.style.position = 'absolute';		this.__progressBarMask.style.top = '0px';		this.__progressBarMask.style.left = '0px';		var width = birtUtility.clientWidth();		this.__progressBarMask.style.width = width + 'px';		var height = birtUtility.clientHeight();		this.__progressBarMask.style.height = height + 'px';		this.__progressBarMask.style.zIndex = '200';		this.__progressBarMask.style.backgroundColor = '#ff0000';		this.__progressBarMask.style.filter = 'alpha( opacity=' + ( this.opacity * 100 ) + ')';		this.__progressBarMask.style.opacity = this.opacity;		this.__progressBarMask.scrolling = 'no';		this.__progressBarMask.marginHeight = '0px';		this.__progressBarMask.marginWidth = '0px';		this.__progressBarMask.style.display = 'none';		this.__progressBarMask.style.cursor = "move"; //cursor is set to a different value than desired so that change is trigged in IE				this.__eh_resize_closure = this.__eh_resize.bindAsEventListener( this );		birtEventDispatcher.registerEventHandler( birtEvent.__E_RESIZE, "Mask", this.__eh_resize_closure );	},
meta: 855	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/855/f51f1a471406f0863499e421cc36e1e34ac5165e/Mask.js/buggy/viewer/org.eclipse.birt.report.viewer/birt/webcontent/birt/ajax/core/Mask.js