function ausblenden()
	{
	for (i = 0; i<20;i++)
		{
		if (document.getElementById("sub"+i))
			{
			if (activepage!=i) document.getElementById("sub"+i).style.display = "block"; //war none
			}
		}
	}
	
function einblenden(submenu)
	{
	subobj = document.getElementById(submenu);
	if (subobj.style.display == "none") 
		{
		subobj.style.display = "block";
		}
	else 
		{
		subobj.style.display = "block"; //war none
		}
	}

ausblenden();