//IE hover
function start() {
if (document.getElementById) {
  navRoot = document.getElementById("nav");
  if(document.all){
    for (i=0; i<navRoot.all.length; i++){
		node = navRoot.all(i);
		if (node.nodeName=="LI") {
			node.onmouseover=function() {
				this.className+=" over";
 			}
 			node.onmouseout=function() {
 				this.className=this.className.replace(" over", "");
			}
		}
	}
  }

}
}