Mobile offline - AppCache setup

index(html)2.js

        //Check if a new cache is available on page load.
        window.addEventListener('load', function( ) {
          window.applicationCache.addEventListener('updateready', function( ) {
            if (window.applicationCache.status === window.applicationCache.UPDATEREADY) {
                window.applicationCache.swapCache();
                window.location.reload( true );
            } else {
              // Manifest didn't changed. Nothing new to server.
            }
          }, false);
        }, false);