#nav
{
	padding:0px;
	margin:0px;
	width:756px;
	height:427px;
	margin:0 auto;
	border-top:3px solid #52616C;
	padding-top:3px;	
	position:relative;
	z-index:3;
}
	#nav li
	{
		list-style:none;
		float:left;
		width:189px;
	}
	
	#nav li a
	{
		display:block;
		width:100%;
		height:427px;
		text-decoration:none;
	}
	#nav li a span
	{
		display:none;
	}
	#nav #firm
	{
		background: url('gui_05.jpg') top left no-repeat;
	}
	#nav #career
	{
		background: url('gui_06a.jpg') top left no-repeat;
	}
	#nav #life
	{
		background: url('gui_07.jpg') top left no-repeat;
	}
	#nav #campus
	{
		background: url('gui_08.jpg') top left no-repeat;
	}