.thumbnailSet{
	cursor:pointer;
	position:relative;
}

.hotspot{
	position:absolute;
	float:left;
	z-index:100;
	background:#ffffff;
	opacity:0;	/* FF + Standard */
	/* filter attribute gives console errors in FF, but is a must for IE.
	Without it IE just shows 'background' coloured boxes.
	*/
	filter: alpha(opacity = 00); /* IE */
}

.thumbnail{
	display:none;
	position:absolute;
	left:0;
	z-index:0;
}