lastChild = function() {
	/*attach the lastChild class to the last li in a list for IE, since IE doesn't recognize the last-child pseudo selector*/
	if (document.all&&document.getElementById) {
		
		allLists = document.getElementsByTagName("ul");

		for (i=0; i<allLists.length; i++) {		

			listItem = allLists[i].getElementsByTagName("li");
			lastNode = listItem[(listItem.length)-1];
			lastNode.className+=" lastChild";

		}
	}
}
addEvent(window,'load',lastChild,false);