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