.overlay {
	opacity: .5;
	filter: alpha(opacity=50);
	width: 170px;
	z-index: 100;
	visibility: hidden;
	position: absolute;
	top: 0px;
	left: 0px;
	align: left;
}

.img_container {
	left: 0px;
	top: 0px;
	position: relative;
}