var isDOM=document.getElementById;
var isOpera=isOpera5=window.opera && isDOM;
var isMSIE=document.all && document.all.item && !isOpera;

sfHover = function() {
try {
    var sfEls = document.getElementById("nav").getElementsByTagName("li");
    for (var i=0; i<sfEls.length; i++) {
      sfEls[i].onmouseover=function() {
        this.className+=" sfhover";
        if (isMSIE && (this.id=='pulldown_0' || this.id=='pulldown_1' || this.id=='pulldown_2' || this.id=='pulldown_3')) {
            document.getElementById(this.id + '2').style.top=this.offsetHeight+this.offsetTop+10+"px";
            document.getElementById(this.id + '2').style.left=this.offsetLeft+"px";
        }
      }
      sfEls[i].onmouseout=function() {
        this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
      }
    }
} catch(e) { }
  }
  if (window.attachEvent) 
  {
     window.attachEvent("onload", sfHover); 
  }