static char *last_leveldir_identifier[3] = { NULL, NULL, NULL };
static char *last_artwork_identifier[3] = { NULL, NULL, NULL };
static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };
static char *last_leveldir_identifier[3] = { NULL, NULL, NULL };
static char *last_artwork_identifier[3] = { NULL, NULL, NULL };
static boolean last_override_level_artwork[3] = { FALSE, FALSE, FALSE };