#screenoverlay {
	position: fixed;
	_position: absolute;  /* for IE 6.0 */  
	left: 0px;
	top: 0px;  
	width: 100%;
	height: 100%;
	z-index: 1000;
	visibility:hidden;
	
	
	background-color: #222222; 
	opacity: .75;
	filter: alpha(opacity=75);  
	        
}

#topbox {
	position: absolute;
	padding: 5px;
	z-index: 1001;
	display: none;
	
	width: 370px;
	height: 220px;
	border:  solid black;
	background-color: #FFFFFF;
	
}