title: How can I have 2 leftBarButtonItems in iPhone app, and 1 be the default back button?
body: <p>I would like 2 leftBarButtonItems, but leave one of the items as the default back button for Navigation Controllers.  I have set up:</p>
  
  <pre><code>self.navigationItem.leftBarButtonItems = [NSArray arrayWithObjects:archives, ???, nil];
  </code></pre>
  
  <p>where archives is a UIBarButtonItem I created, but do not know what the default back button is to include in the array.  Any suggestions?</p>