sfHover = function() {

  if (document.getElementById("nav")) {
    var sfEls = document.getElementById("nav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
      sfEls[i].onmouseover = function() {
        this.className += " sfhover";
      }
      sfEls[i].onmouseout = function() {
        this.className = this.className.replace(new RegExp(" sfhover\\b"), "");
      }
    }
  }

  if (document.getElementById("quicknav")) {
    var sfEls = document.getElementById("quicknav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
      sfEls[i].onmouseover = function() {
        this.className += " sfhover";
      }
      sfEls[i].onmouseout = function() {
        this.className = this.className.replace(new RegExp(" sfhover\\b"), "");
      }
    }
  }

}

if (window.attachEvent) window.attachEvent("onload", sfHover);