if (document.getElementById){ 
document.write('<style type="text/css">\n')
document.write('.undermenux{display: none;}\n')
document.write('.undermenuxx{display: none;}\n')
document.write('</style>\n')
}

function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("hovedx").getElementsByTagName("span"); 
		if(el.style.display != "block"){ 
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="undermenux"){ 
				ar[i].style.display = "none";
				}
			}
			el.style.display = "block";
		}
		else{
			el.style.display = "none";
		}
	}
}