sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
			
			if (document.getElementById(this.id+"h2")) {document.getElementById(this.id+"h2").className+=" sfhover";}
		}
		sfEls[i].onmouseout=function() {
			this.className="";
			
			document.getElementById("li1h2").className="";
			document.getElementById("li2h2").className="";
			document.getElementById("li3h2").className="";
			document.getElementById("li4h2").className="";
			document.getElementById("li4").className="laatste";
	
		}
	}
}

if (window.attachEvent) 
	{
	window.attachEvent("onload", sfHover);
	}
else if (document.getElementById)
	{//support older modern browsers
	window.onload=sfHover;
	}