<!--//
var popupwindow;
var winstatus;
var openby;

function openpopup(url,breite,hoehe,opener)

{ if(popupwindow)
	{if (popupwindow.closed == true)
		{winstatus = true}
	 else   {winstatus = false}}
  else {winstatus = 1 }
        
if (winstatus == true)
	{
	popupwindow = window.open( url,"","toolbar=no,location=no,status=no,directories = no, menubar=no,scrollbars=yes,copyhistory=no,width="+breite+",height="+hoehe+"");openby=opener
	}
	else
		{if (openby == opener)
			{
			popupwindow.location = url
			popupwindow.resizeTo(breite,hoehe+55)
			popupwindow.focus()
			}
		else
			{popupwindow.close(); popupwindow = window.open( url,"","toolbar=no,location=no,status=no,directories = no, menubar=no,scrollbars=yes,copyhistory=no,width="+breite+",height="+hoehe+"");openby=opener
			}}
}
//-->