function popUp(url, scroll, breite, hoehe, name)
{	
	if (scroll == "ja")
	{
		fenster = open(url,name,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width='+breite+',height='+hoehe+'');
		fenster.focus();
	}
	
	if (scroll == "nein")
	{
		fenster = open(url,name,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+breite+',height='+hoehe+'');
		fenster.focus();
	}
}

function bilder_tauschen(Bildname,Bildobjekt)
 {	
 	window.document[Bildname].src = Bildobjekt.src;
 }