var menu_current = "";
			var lock = false;
			
			function menu_activate(obj)
			{
				lock = true;
				
				if(menu_current != "")
				{
					menu_current.style.backgroundColor = "";
					var sub = menu_current.parentNode.getElementsByTagName("ul")[0];
					if(sub) sub.style.display = "none";
				}
				
				menu_current = obj;
				
				var sub = menu_current.parentNode.getElementsByTagName("ul")[0];
				if(sub) sub.style.display = "block";
				menu_current.style.backgroundColor = "#002866";
			}
			
			function menu_off()
			{
				lock = false;
				setTimeout('menu_deactivate()',1000);
			}
			
			function menu_deactivate()
			{
				if(lock) return;
				
				if(menu_current != "")
				{
					menu_current.style.backgroundColor = "";
					var sub = menu_current.parentNode.getElementsByTagName("ul")[0];
					if(sub) sub.style.display = "none";
				}
				menu_current = "";
			}