function startList(strElementName) {
if (!document.getElementById(strElementName)) { return; }
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById(strElementName);

		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" on";
				  }
				  node.onmouseout=function() {
					  this.className=this.className.replace(" on", "");
				   }
			}

		}
	}
}
// window.onload=startList('leftnav');