.imgBox{
	width:100%;
	height:100%;
	background-color:#000;
	position:absolute;
	left:0;
	top:0;
	visibility:hidden;
	margin:0;
	padding:0;
	filter:alpha(opacity=60);
	-moz-opacity: 0.6;
	opacity: 0.6;

}
.viewer{
	position:absolute;
	visibility:hidden;
	filter:alpha(opacity=100);
	-moz-opacity: 1;
	opacity: 1;
}