I do not know how to describe what I want. So I did just draw it: http://i.imgur.com/oMFzJ.jpg
This is what I've got so far. I do not know how to get this overlay
<div id="layer" style="background-color:#212121;border:2px solid #CCCCCC;width:450px;position:absolute;top:20%;left:20%;"> <iframe src="http://www.ebay.com" width="100%" height="300" frameborder="0" scrolling="no"></iframe> <div style="width:100%;"><span style="color:#CCCCCC;float:right;font-size:11px;margin:3px;cursor:pointer;" onclick="document.getElementById('layer').style.display='none';">Close X</span></div> </div>