div.nir_overlay{
	display: block;
	visibility: hidden;
	position:fixed;
	background-color: #666;
	top: 0; left: 0;
	width: 100%; height: 100%;
	z-index: 99;
	filter:alpha(opacity=30); opacity:0.3;
}
div.nir_frame{
	display: block;
	visibility: hidden;
	position: fixed;
	z-index: 100;
	left: 50%;
	top: 50%;
	margin-left: -246px;
	margin-top: -180px;
}
/*html, body {
	height: 100%;	
}

* html div#nir_overlay {
     position: absolute;
     height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
}*/