function showLightbox(contentDiv,overlay){
		if (window.innerHeight) //if browser supports window.innerHeight
		{
			var innerh = document.getElementById("wrapper").offsetHeight + 33;
			var posy = window.pageYOffset;
			var visibleHeight = window.innerHeight;
		}
		
		else if (document.all) //else if browser supports document.all (IE 4+)
		{
			var innerh = (document.body.clientHeight);
			var posy = document.documentElement.scrollTop;
			var visibleHeight = document.documentElement.clientHeight;
		}
		
		document.getElementById(contentDiv).style.display='inline-block';
		document.getElementById(contentDiv).style.width=document.body.offsetWidth+"px";
		document.getElementById(overlay).style.height = innerh+"px";
		document.getElementById(overlay).style.width = document.body.offsetWidth+"px";
		document.getElementById(overlay).style.display='block';
		//document.getElementById(contentDiv).style.top = posy + ((visibleHeight - document.getElementById(contentDiv).clientHeight)/2)+"px";
				
		document.onkeydown = keyDownListener;
		
		/*
		if(document.getElementById("mdsvideo") != null){
			document.getElementById("mdsvideo").onkeydown = keyDownListener;
		}
		*/
		document.getElementById(overlay).onclick = onclickListener;
		document.getElementById(contentDiv).onclick = onclickListener;
		window.onresize = onresizeListener;
	
		function keyDownListener(e){
			var escKey  = (window.event) ? event.keyCode : e.keyCode;
			if(escKey==27){
				
				hideLightbox(contentDiv,overlay);
				
			}
		}
		
		function onclickListener(e) {
			//hideLightbox(contentDiv,overlay);
		}
		
		function onresizeListener(e){
			
			showLightbox(contentDiv,overlay);
			
		}
	}
	
	function hideLightbox(contentDiv,overlay){
		window.onresize = null;
		document.onkeydown = null;
		document.getElementById(contentDiv).style.display='none';
		document.getElementById(overlay).style.display='none';
		
		
		if(document.getElementById("mdsvideo") !=null){
			document.getElementById("mdsvideo").sendEvent("STOP","true");
			document.getElementById("mdsvideo").onkeydown = null;
		}
		
		document.getElementById(overlay).onclick = null;
		document.getElementById(contentDiv).onclick = null;
		
	}