sfHover = function() {
      var sfEls = document.getElementById("mainlevelmainnav").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"), "");
        }
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if (window.attachEvent) window.attachEvent("onload", sfHover);

