#welcomead {
	position: fixed;
	top:10px;
	left:50%;
	z-index:999999999;
	width:800px;
	height:600px;
	margin:0 0 0 -400px;
	text-align:left;
}
* html #welcomead {
	position: absolute;
}
#overlay {
	position:fixed;
	top:0;
	left:0;
	width:100%;
	height:100%;
	z-index:99999999;
	background-color:#000;
	-moz-opacity: 0.95;
	opacity:.85;
	filter: alpha(opacity=95);
}
* html #overlay {
	position: absolute;
	height:10000px;
}