meinfenster=new Object();
	
	function levelwindow(dieurl,hoehe)
	{
	 
	  if ((! meinfenster.closed) && ( ""+meinfenster.closed != "undefined")) 
	   {meinfenster.close();}
	
	
	eigenschaften="width=635, height=900,resizable=no,menubar=no,statusbar=no,toolbar=no,scrollbar=no";  
	meinfenster=open(dieurl,"level",eigenschaften);
	  if ((screen.width)>=1000) meinfenster.moveTo(100,30);
	}