if (document.getElementById){
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
document.write('<style type="text/css">\n')
document.write('.submenu1{display: block;}\n')
document.write('</style>\n')
}

function SwitchMenu(obj){
	if(obj != "null") {
		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";
			}
		}
	}
}