var Timer;
var name;
var menu;
var allMenues = new Array();

function Menue(name)
{	

	if (document.layers)
    {
		for(var i=0; i<allMenues.length; i++)
		{
			menuname="unternavi_" + allMenues[i];	
			document.layers[menuname].visibility="hidden";
		}			
		document.layers[name].visibility="visible";
		clearTimeout(Timer);
	}

	else
	{
		for(var i=0; i<allMenues.length; i++)
		{
			menuname="unternavi_" + allMenues[i];	
			document.getElementById(menuname).style.visibility="hidden";
		}		
		
		document.getElementById(name).style.visibility="visible";
		clearTimeout(Timer);
				
	}
}

function aus(menu)
{
	if(document.layers)	
	{
		document.layers[menu].visibility="hidden";
	}	
	else
	{
		document.getElementById(menu).style.visibility="hidden";
	}
}

function MenueAus(name)
{	
	menu = name;		
	Timer = setTimeout("aus(menu);",500);
}