#nav div {
	position:absolute;
	visibility:hidden;
	margin:0;
	padding:0;
	z-index:100;
}

#nav div a {
	background:transparent url(images/sub_middle_bg.png) top left no-repeat;
	position:relative;
	display:block;
	margin:0;
	padding:0;
	white-space:nowrap;
	text-align:left;
	text-decoration:none;
	width:158px;
	height:36px;
	color:#FFFFFF;
	font-weight:bold;
	font-size:10px;
	line-height:36px;
}

#nav div a:hover {
	background:transparent url(images/sub_middle_bg_hover.png) top left no-repeat;
}

#nav div a.sub_top {
	background:transparent url(images/sub_middle_bg.png) top left no-repeat;
	border:none;
	width:158px;
	height:0;
	display:none;
}

#nav div a.sub_bottom {
	background:transparent url(images/sub_bottom_bg.png) top left no-repeat;
	border:none;
	width:158px;
	height:7px;
}