void CMyPropertySheet::OnNMClick(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMITEMACTIVATE lpItem = reinterpret_cast(pNMHDR);
	m_nSelectedItem = lpItem->iItem ;

   if (lpItem->iItem  >= 0 && lpItem->iItem < m_wndList.GetItemCount())
   {
	   m_nSelectedItem = lpItem->iItem;
	   CString strCaption = m_wndList.GetItemText(lpItem->iItem,0);
	  _tcscpy(m_szCaption, strCaption);	

	SetActivePage(m_nSelectedItem);
	
	Invalidate();	
	
	GetPage(m_nSelectedItem)->MoveWindow(&m_rectPage);

	m_wndList.SetFocus();
   }
	
}