//-----------------------------------------------------------------------------
// openPopup function
//-----------------------------------------------------------------------------
function openPopup(url) {
  var w = 380;
  var h = 360;
  var x = (screen.availWidth - w) / 2;
  var y = (screen.availHeight - h) / 2 + 19;

  var flags = "resizable";
  flags += ",left=" + x + ",screenX=" + x;
  flags += ",top=" + y + ",screenY=" + y;
  flags += ",width=" + w + ",innerWidth=" + w;
  flags += ",height=" + h + ",innerHeight=" + h;
  
  var popupWindow = window.open(url, "contact", flags);
  popupWindow.focus();
}
//-----------------------------------------------------------------------------