progressBar = new Drupal.ProgressBar('updateprogress', updateCallback, 'POST', errorCallback);
progressBar.setProgress(-1, batch.initMessage);
progressBar.startMonitoring(batch.uri + '&op=do', 10);
progressBar = new Drupal.ProgressBar('updateprogress', updateCallback, 'POST', errorCallback);
progressBar.setProgress(-1, batch.initMessage);
progressBar.startMonitoring(batch.uri + '&op=do', 10);