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.childNodes[1].style.display = "block";
  }
  node.onmouseout=function() {
	this.childNodes[1].style.display = "";
   }
   }
  }
 }
}

window.onload=startList;