private void reCaptcha() {
   _captcha = null;
   _numberEntry.setEntry(null, 0);
   _ltManager.makeRequest(new GetCaptcha());
   updateUi();
 }
 @Override
 public void onClick(View arg0) {
   _isSolving = true;
   updateUi();
   _ltManager.makeRequest(new SolveCaptcha(_tvSolution.getText().toString()));
 }