// JavaScript Document

// hand over parameters for source,width and height

function preview(bildurl,b,h)
{
var eigenschaften,sbreite,shoehe,fenster,b,h;

// stellt die Bildschirmabmessungen fest
// find window size
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>");
  // geändert 2004 für Mozilla
  document.write('<scr' + 'ipt type="text/javascr' + 'ipt" language="JavaScr' + 'ipt">');
  // bei click  schliessen , on click close
  document.write("function click() { window.close(); } ");
  document.write("document.onmousedown=click ");
  // geändert 2004 für Mozilla
  document.write('</scr' + 'ipt>');
  document.write("<title>klick to close</title></head>");
  // bei Focusverlust schliessen, close if window looses focus
  // Zeile geändert Aug 2003 (Dreamweaver machte Probleme)
  document.write("<" + "body onblur='window.close()';");
  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();
}
}