var klappmenu = new Array("klapp"); 
function disp(wert) 
	{
	if (wert == 0)
		{return;} 
	if (document.getElementById(wert).style.display == 'block')
		{document.getElementById(wert).style.display = 'none';} 
	else 
		{document.getElementById(wert).style.display = 'block';} 
	}