title: Navigation Controller Back button to go to the screen before the previous screen
body: <p>I'm wondering whether it's possible to go back to 2 previous page using navigation controller button. Right now, I've custom made the button using this code</p>
  
  <pre><code>self.navigationItem.leftBarButtonItem =
  [[UIBarButtonItem alloc] initWithTitle:mainLib.navCountryTitle
                                   style:UIBarButtonItemStyleBordered
                                  target:self
                                  action:@selector(handleBack:)];
  </code></pre>
  
  <p>And on 'handleback' method, I called this line</p>
  
  <p><code>[self.navigationController popViewControllerAnimated:YES];</code></p>
  
  <p>So in this case it will go to the previous screen. However I want to go to the screen before the previous screen.</p>
  
  <p>I know that i can call that screen straight away, but I wouldn't want to do that because in every screen I have a back button which supposed to go to its previous screen. </p>