// based on Suckerfish Dropdowns from www.alistapart.com

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

window.onload = startList;