if( getAppNavigationMode() ) {
_manager = new WidgetFieldManager( Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR | Manager.HORIZONTAL_SCROLL
| Manager.HORIZONTAL_SCROLLBAR );
// navController depends on navExtension. Initialize navExtension first
_navigationJS = new NavigationExtension();
_navigationExtension = new NavigationNamespace( this, (WidgetFieldManager) _manager );
_navigationController = new NavigationController( this );
} else {
_manager = new VerticalFieldManager( Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR | Manager.HORIZONTAL_SCROLL
| Manager.HORIZONTAL_SCROLLBAR );