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