function navPopup() {
	
	var allListTags = new Array();
	//All LIs
	var allListTags = document.getElementsByTagName("li");
	//Go through all LIs
	for (i=0; i<allListTags.length; i++) {
		//See if this LI has a UL in it
		var subListTags = new Array();
		subListTags = allListTags[i].getElementsByTagName("ul");
		//If this LI DOES have ULs in it....
		if (subListTags.length > 0) {
			n=0;
			
			//ID for Parent LI
			listItemId = "li" + i;
			allListTags[i].setAttribute("id",listItemId);
			listItem = document.getElementById(listItemId);
			
			//							alert(listItem.getAttribute('id'));
			
			//ID for your sub UL
			subListId =  "li" + i + "ul" + n;
			subListTags[n].setAttribute("id",subListId);
			subList = document.getElementById(subListId);
			//							alert(subList.getAttribute('id'));
			
			subList.style.visibility = 'hidden';
			with ({ "subList": subList }) {
				listItem.onmouseover = function(){subList.style.visibility = 'visible';};
				listItem.onmouseout = function(){subList.style.visibility = 'hidden';};
				}
			}
		}
	}