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