var ctrl = m_Map.GetCtrlMan();
   var uiman = ctrl.GetUIMan();
   if (uiman.GetChildCount() > 0) {
    uiman.DestroyUIMan();  
   }

   CXCtrlMan ctrl = m_Map.GetCtrlMan();
   CXUIMan uiman = ctrl.GetUIMan();
   if (uiman.GetChildCount() > 0) {
    uiman.DestroyUIMan();  
   }