sfhover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover= function() {
			this.className+=" sfhover";
			/* For IE 6
            if(document.getElementById("sfhover_iframe")) {
            	var myiframe = document.getElementById("sfhover_iframe");
            	var mysubmenu = this.getElementsByTagName("ul");
            	if(mysubmenu.length) {
            		myiframe.style.top = mysubmenu[0].offsetTop + this.offsetTop;
            		myiframe.style.left = mysubmenu[0].offsetLeft + this.offsetLeft;
            		myiframe.style.width = mysubmenu[0].scrollWidth;
            		myiframe.style.height = mysubmenu[0].clientHeight;
            		myiframe.style.display = "block";
            	}
            }
			*/
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			/* For IE6
			if(document.getElementById("sfhover_iframe")){
				var myiframe = document.getElementById("sfhover_iframe");
				myiframe.style.display = "none";
			}
			*/
		}
	}
}

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