function preload()
	{
	// nix
	}
	function rollover1(x)
	{
	document.images[x].src="pix/" + x + "on.gif";	
	}
	function rollout1(x)
	{
	document.images[x].src="pix/" + x + "off.gif";	
	}
	function rollover2(x)
	{
	document.images[x].src="../pix/" + x + "on.gif";	
	}
	function rollout2(x)
	{
	document.images[x].src="../pix/" + x + "off.gif";	
	}
	function huwechsel2(x)
	{
	str=parent.kopf.document.URL;
	str=str.substr(0,str.length-9);
	parent.kopf.document.images["hu"].src = str + "pix/hu" + x +".gif";
	}
	function huwechsel(x)
	{
	str=top.frames[0].document.URL;
	str=str.substr(0,str.length-9);
	top.frames[0].document.images["hu"].src = str + "pix/hu" + x +".gif";
	}
	
	function vr(x)
	{
	open("vr"+x+".html", "Rundgang", "width=320,height=270");
	}