function popup(url)
{
  window.open(url, '', 'width=420,height=500,scrollbars=yes,resizable=yes');
  void(0);
}

$(document).ready(
  function()
  {
    $("a.fancybox").fancybox
    (
      {
        'zoomSpeedIn': 300,
        'zoomSpeedOut': 300,
        'overlayShow': true
      }
    );
  }
);