M_UNREAD
case M_UNREAD:
fToolBar->SetActionVisible(M_UNREAD, true);
fToolBar->SetActionVisible(M_UNREAD, false);
fToolBar->AddAction(M_UNREAD, this, _RetrieveVectorIcon(12), NULL,
fToolBar->SetActionVisible(M_UNREAD, false);
_UpdateLabel(M_UNREAD, B_TRANSLATE("Unread"), showLabel);