@Nullable
    @Override
    public View onCreateView(
        LayoutInflater inflater,
        @Nullable ViewGroup container,
        @Nullable Bundle savedInstanceState) {
      rootView = inflater.inflate(R.layout.overview_layout, container, false);

      m_gridAdapter = new MonthGridAdapter(activity, this, 6 * 7);
      m_gridAdapter.setup(currentMonth);
      GridView g = (GridView) rootView.findViewById(R.id.gridOverview);
      g.setAdapter(m_gridAdapter);
      return rootView;
    }
 public Calendar getCurrentDay() {
   if (m_gridAdapter != null) {
     return m_gridAdapter.getCurrentDay();
   }
   return null;
 }
 public void onBackPressed() {
   m_gridAdapter.onBackPressed();
 }