#menu_container{
	margin:0 auto;
	width:900px;
	overflow: hidden;
}
.menu ul{
	margin: 0;
	padding:0 0 0 13px;
	float: left;
	font:bold 16px Arial, Helvetica, sans-serif;
	width: 900px;
	background:#085487 url(http://www.dentalmuseum.org/images/site/navback_ysi.gif) top left repeat-x;
}
.menu li{
	display: inline;
}
.menu li a{
	float: left;
	color: white;
	padding: 8px 13px 8px 13px;
	text-decoration: none;
	background:url(http://www.dentalmuseum.org/images/site/nav_divider_ysi.gif) right center repeat-y;
}
.menu li a:hover, .menu li a.current{
	text-decoration: none;
	color: white;
	background: url(http://www.dentalmuseum.org/images/site/nav_divider_ysi.gif) right center repeat-y;
}
.sub_container{
	clear: left;
	width:900px; /*width of 2nd level sub menus*/
	height:35px; /*height of 2nd level sub menus. Set to largest's sub menu's height to avoid jittering.*/
}
*:first-child+html .ieclass{ /*IE7 hack to remove gap between menu and sub contents*/
	margin-top:0px;
}
* html .ieclass{ /*IE6 and below hack to remove gap between menu and sub contents*/
	margin-top:0px;
}
.sub {
	display:none;
}
.sub ul{
	margin: 0;
	padding:11px 0 11px 20px;
	font: bold 11px Verdana;
	background:url(http://www.dentalmuseum.org/images/site/sub_ysi.gif) bottom left no-repeat;
}
.sub li{
	display: inline;
}
.sub li a{
	padding:0 8px 0 5px;
	text-decoration: none;
	color:#fff;
	border-right:1px solid #fff;
}
.sub li a:hover, .sub li a.current{
	text-decoration: underline;
}
.sub .nolink{
	padding:0 0 0 7px;
	font: 11px Verdana;
	color:#fff;
}