- inner_rest->Add( new wxButton( this, wxID_BACKWARD, _("Backward"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS ), 0, wxLEFT|wxRIGHT, margin );
+ inner_rest->Add(new wxButton(this, wxID_BACKWARD, wxEmptyString,
+ wxDefaultPosition, wxDefaultSize,
+ wxCLIP_SIBLINGS),
+ 0, wxLEFT|wxRIGHT, margin);