	<!-- Zeige: Zentrierter Fensteraufruf
	function zeige(url,name,w,h)
	{
	  w = w + 20;
	  h = h + 28;
	  if(screen.width)
	    {
		  var winl = (screen.width-w)/2;
		  var wint = (screen.height-h)/2;
	  	}
	  else
	  	{ winl = 0 ; wint = 0; }
	  if ( winl < 0 ) winl = 0;
	  if ( wint < 0 ) wint = 0;
	  var settings = 'height=' + h + ',';
	  settings += 'width=' + w + ',';
	  settings += 'top=' + wint + ',';
	  settings += 'left=' + winl + ',';
	  win = window.open(url,name,settings);
	  win.window.focus();
	}
	//-->