sfHover = function() {

  try {
    var sfEls = document.getElementById("header-bottom-nav").getElementsByTagName("LI");
  } catch(error) {

  }

  if(sfEls) {
    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);
	}

if(window.addEventListener) {
	window.addEventListener("load", sfHover, false);
}