// Required for IE6 and IE7
sfHover = function() {
	var navRoot =  document.getElementById("nav");
	var sfEls = navRoot.getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		
		sfEls[i].onmouseover=function() {
			var navRoot = document.getElementById("nav");
			this.className+=" sfhover";			
			if(this.parentNode != navRoot){
				//put class on parent A tag
				this.parentNode.previousSibling.className+=" level1Menu";
			}
		}
		
		sfEls[i].onmouseout=function() {
			var navRoot =  document.getElementById("nav");
			
			this.className=this.className.replace(new RegExp("sfhover"), "");
			if(this.parentNode != navRoot){
				//remove class on parent A tag
				this.parentNode.previousSibling.className=this.parentNode.previousSibling.className.replace(new RegExp(" level1Menu\\b"), "");
			}
		}
		
		sfEls[i].onmouseup=sfEls[i].onmouseout;
	}
}
if (window.attachEvent) {
	window.attachEvent("onload", sfHover);
} else {
	window.addEventListener("DOMContentLoaded", sfHover, false);
}