function fenster(wohin,url,name,breit,hoch)
	{
	var breit;
	var hoch;
	var wohin;
	if
	(wohin=='oben')
	{
	var x=(screen.width - screen.width);
	var y=(screen.height - screen.height);
	}
	else if
	(wohin=='center')
	{
	var x=((screen.width - breit) / 2);
	var y=((screen.height - hoch) /2);
	}
	window.open(url,name,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width='+breit+',height='+hoch+',left='+x+',top='+y);
	}
	
	
	
	
	function fenster_ns(wohin,url,name,breit,hoch)
	{
	var breit;
	var hoch;
	var wohin;
	if
	(wohin=='oben')
	{
	var x=(screen.width - screen.width);
	var y=(screen.height - screen.height);
	}
	else if
	(wohin=='center')
	{
	var x=((screen.width - breit) / 2);
	var y=((screen.height - hoch) /2);
	}
	window.open(url,name,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width='+breit+',height='+hoch+',left='+x+',top='+y);
	}