function schalter (ebene)
{
	if(window.document.getElementById(ebene).style.display=='block')
	{
		window.document.getElementById(ebene).style.display='none';
	}else{
		window.document.getElementById(ebene).style.display='block';
	}
}

function PopFenster (PopAdresse) {

	PopFenster = window.open(PopAdresse, "Popupfenster", "width=440,height=450,left=0,top=0,scrolling=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,screenX=1,screenY=1,top=1,left=1");

}