var menu_timeout_obj;
var prev_menu;

function MenueAuf(Men) {
	if (prev_menu && prev_menu!=Men) {
	MenueReset(prev_menu);
	}
	clearTimeout(menu_timeout_obj);
	prev_menu=Men;
	if(document.getElementById) {
		document.getElementById(Men).style.visibility="visible";
		} else if(document.all && !document.getElementById) {
		document.all[Men].style.visibility="visible";}
	}

function MenueZu(Men) {
		menu_timeout_obj=setTimeout("MenueReset('"+Men+"');", 500);
	}

function MenueReset(Men) {
	prev_menu=null;
	if(document.getElementById) {
		document.getElementById(Men).style.visibility='hidden';
		} else if(document.all && !document.getElementById) {
		document.all[Men].style.visibility='hidden';
		}
	}