public function unset_login()
 {
     $this->session->unset_login();
     $this->tv->unload_channels();
     $this->vod->clear_movie_cache();
     $this->vod->clear_genre_cache();
     DefaultArchive::clear_cache();
 }
 public function get_archive()
 {
     return DefaultArchive::get_archive(KTV_ARCHIVE_ID, KTV_ARCHIVE_URL_PREFIX);
 }