function popup($url, $name, $width, $height)
{
  fenster = window.open($url, $name, "width="+$width+",height="+$height+",resizable=yes,scrollbars=yes,left=30,top=0");
  fenster.focus();
}
var base64s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
function decode(encStr)
{ var bits; var decOut = ''; var i = 0;
 for(; i<encStr.length; i += 4)
 {
  bits = (base64s.indexOf(encStr.charAt(i))    & 0xff) <<18 |
         (base64s.indexOf(encStr.charAt(i +1)) & 0xff) <<12 |
         (base64s.indexOf(encStr.charAt(i +2)) & 0xff) << 6 |
          base64s.indexOf(encStr.charAt(i +3)) & 0xff;
  decOut += String.fromCharCode((bits & 0xff0000) >>16, (bits & 0xff00) >>8, bits & 0xff);
 }
 if(encStr.charCodeAt(i -2) == 61)
 {
  return(decOut.substring(0, decOut.length -2));
 }
 else if(encStr.charCodeAt(i -1) == 61)
 {
  return(decOut.substring(0, decOut.length -1));
 }
 else {return(decOut)};
}