AppCache Refresh (Html5).js

/**
 * Here is the simplified version. Courtesy of Mike Koss.
 * 
 * See, http://labnote.beedesk.com/the-pitfalls-of-html5-applicationcache
 */
function handleAppCache() {
  if (applicationCache == undefined) {
    return;
  }
  
  if (applicationCache.status == applicationCache.UPDATEREADY) {
    applicationCache.swapCache();
    location.reload();
    return;
  }
  
  applicationCache.addEventListener('updateready', handleAppCache, false);
}