ul#diaporama{
	list-style-type: none;
	margin: 0;
	padding: 0;
	position: relative;
	width: 924px;
	height: 340px;
	overflow: hidden;
	display: none;
}

ul#diaporama li{
	position: absolute;
	top: 0;
	left: 0;
}

ul#diaporama li.visible{
	display: block;
}

ul#diaporama li.invisible{
	display: none;
}