.darkenBackground {
	display:block;
	background-color: #000;
	opacity: 0.6; /* Safari, Opera */
	-moz-opacity:0.60; /* FireFox */
	filter: alpha(opacity=60); /* IE */
	z-index: 20;
	height: 100%;
	width: 100%;
	background-repeat:repeat;
	position:absolute;
	top: 0px;
	left: 0px;
}

.thumb{float:left;width:43px;opacity:0.55}
.thumblist div:hover {opacity:1}