function handleUpdate(response)
{
   var updateResponse = eval('(' + response.responseText + ')');
   
   if(updateResponse == null)
      return;
      
   var objectCount = updateResponse['NumberOfObjects'];
   $('indexing').innerHTML = (objectCount != null) ? objectCount : "-";

   var cartCount = updateResponse['NumberOfCartItems'];
   $('quickCollection').innerHTML = (cartCount != null) ? cartCount : "0";
}

function toggleMembership(imageObj)
{
   var parameters = imageObj.src.lastIndexOf("?");
   if(parameters <= 0)
      return;

   imageObj.onload = triggerUpdate;
   imageObj.src = imageObj.src.substr(0, parameters) + "?" + Math.round(Math.random() * 1024 * 1024);
}