#overlay{
	position: fixed;
	z-index:999;
	top: 0px;
	left: 0px;
	height:100%;
	width:100%;
	background-color:#000;
	filter:alpha(opacity=75);
	-moz-opacity: 0.75;
	opacity: 0.75;
}


* html #overlay { /* ie6 hack */
     position: absolute;
     height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
}

#lightbox1 {
	position: fixed;
	z-index: 1000;
	display:none;
	text-align:left;
	padding:10px;
	top:50%;
	left:50%;
}

* html #lightbox1 { /* ie6 hack */
position: absolute;
margin-top: 100px);
}