sfHover = function() {
	var sfEls = document.getElementById("header-bottom-nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {

	  var classNameAsString = String(sfEls[i].className);
	  if(!classNameAsString.match(/subnav/)) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("sfhover\\b"), "");
		}
	  }

	  var subnavUL = sfEls[i].getElementsByTagName("UL");
	  if(subnavUL[0]) {
	    	  var subnavLIs = subnavUL[0].getElementsByTagName("LI");
	  for(var x=0; x<subnavLIs.length; x++) {
	    	subnavLIs[x].onmouseover=function() {
			this.className+=" subnavhover";
		}
		subnavLIs[x].onmouseout=function() {
			this.className=this.className.replace(new RegExp("subnavhover\\b"), "");
		}
	  }
	  }


	}
}

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

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