title: extend actionbar menu items
body: <p>I create base activity with actionbar menu functional and extended another activities from it.</p>
  
  <pre><code>public class BaseActivity extends SherlockFragmentActivity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          getSupportMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
  
          ...
          return true;
      }
  
  
  }
  </code></pre>
  
  <p>Now I want to add some buttons to the actionbar in some activities. How can i add elements to actionbar and use element from base activity?</p>