ul {
	margin: 0;
	padding: 0;
	list-style: none;
	width: 150px;
	background: #FFFFFF;
	}

ul li {
	position: relative;
	}

li ul {
	position: absolute;
	left: 149px;
	top: 0;
	display: none;
	}

ul li a {
	display: block;
	text-decoration: none;	
	background: #FFFFFF;
	padding: 5px;
	border: 1px solid #ccc;
	border-bottom: 0;
	}

/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; }
* html ul li a { height: 1%; }
/* End */


ul {
	margin: 0;
	padding: 0;
	list-style: none;
	width: 150px;
	border-bottom: 1px solid #ccc;
	}

li:hover ul, li.over ul { 
	display: block; }


startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace»
	(" over", "");
   }
   }
  }
 }
}
window.onload=startList;

<ul id="nav">

/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */