// JavaScript Document

function popupAufruf(url,name,params) {
 var sizeX = 0;
 var sizeY = 0;
 var winX = screen.availWidth;
 var winY = screen.availHeight;
 var tmpArray = params.split(',');
 for (var i = 0; i < tmpArray.length; i++) {
  if (tmpArray[i].indexOf('width') != -1) {
   var tmpArray2 = tmpArray[i].split('=');
   sizeX = tmpArray2[1];
  }
  if (tmpArray[i].indexOf('height') != -1) {
   var tmpArray2 = tmpArray[i].split('=');
   sizeY = tmpArray2[1];
  }
 }
 var centerX = Math.round(winX / 2 - sizeX / 2);
 var centerY = Math.round(winY / 2 - sizeY / 2);
 params += ',left=' + centerX + ',top=' + centerY;
 var pWindow = open(url,name,params).focus();
}