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