// JavaScript Document
var myWindow;

function openCenteredWindow(url) {
  var w = 1480, h = 1340;

  if (document.all) {
    w = document.body.clientWidth;
    h = document.body.clientHeight;
    x = window.screenTop;
    y = window.screenLeft;
  }
  else {
    w = window.innerWidth;
    h = window.innerHeight;
    x = window.screenX;
    y = window.screenY;
  }
  var popW = 810, popH = 800;
  
  var leftPos = ((w-popW)/2)+x;
  var topPos = ((h-popH)/2)+y;
  var windowFeatures ='width='+ popW +',height='+ popH +',left='+ leftPos +',top=100,toolbar=no,location=yes,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no';
  myWindow = window.open(url,'subWind',windowFeatures);
  
}