function fillBanner (zoneId, divId, numBanners, maxHeight)
{
  $.get(
    '/script/bannerFill.php',
    {
      'numBanners': numBanners,
      'maxHeight': maxHeight,
      'zoneId': zoneId,
      'x': Math.floor(Math.random() * 10000)
    },
    function (html)
    {
      $('#' + divId).append(html);
    }
  );
}