function externalLinks() { 
 if (!document.getElementsByTagName) return; 
 var anchors = document.getElementsByTagName("a"); 
 for (var i=0; i<anchors.length; i++) { 
   var anchor = anchors[i]; 
   if (anchor.getAttribute("href") && 
       anchor.getAttribute("rel") == "external") 
     anchor.target = "_blank"; 
 } 
} 
window.onload = externalLinks;

sfHover = function() {
  if (document.all&&document.getElementById) {
    navRoot = document.getElementById("menu");
    if (navRoot) {
      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", ""); }
        }
      }
    }
  }
}

// Run this only for IE.
if (window.attachEvent) window.attachEvent('onload', sfHover);