function fenster(BildUrl,breite,hoehe) {
 var b=breite;
 var h=hoehe;
 var x=(screen.width/2)-(b/2);
 var y=(screen.height/2)-(h/2);
 window.open(BildUrl,'',"width="+b+",height="+h+",left="+x+",top="+y+",menubar=no,resizeable=no,location=no,status=no");
}
function smiley(smiley) {
  document.feld.eintrag.insertAdjacentText("BeforeEnd"," "+smiley+" ");
  document.feld.eintrag.focus();
}

function bigParty(bildurl,b,h,bildtitel)
{
var eigenschaften,sbreite,shoehe,fenster,b,h;

// stellt die Bildschirmabmessungen fest
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);

if(ns6||ns4) {
sbreite = innerWidth;
shoehe = innerHeight;
}
else if(ie4) {
sbreite = document.body.clientWidth;
shoehe = document.body.clientHeight;
}

x = (sbreite-b)/2;
y = (shoehe-h)/2;

eigenschaften="left="+x+",top="+y+",screenX="+x+",screenY="+y+",width="+b+",height="+h+",menubar=no,toolbar=no,statusbar=0";

fenster=window.open("","",eigenschaften);
fenster.focus();
fenster.document.open();
with (fenster) {
  document.write('<html><head>');
  
  document.write('<scr' + 'ipt type="text/javascr' + 'ipt" language="JavaScr' + 'ipt">');
  document.write("function click() { window.close(); } ");  // bei click  schliessen
  document.write("document.onmousedown=click ");
  
  document.write('</scr' + 'ipt>');
  document.write('<title>'+ bildtitel +'</title></head>');
  
  document.write('<' + 'body onblur="window.close();" ');// bei Focusverlust schliessen
  document.write('marginwidth="0" marginheight="0" leftmargin="0" topmargin="0">');
  document.write('<center>');
  document.write('<img src="'+ bildurl +'"border="0">');
  document.write('<center>');
  document.write('</body></html>');
  fenster.document.close();
}
}

