// Dynamic block deltas
    if (strstr($delta, 'official_latest_')) {
      // Get gallery vocabularies and generate a latest block for each one
      $ovid = variable_get('photo_gallery_official_vocabulary', 0);
      $terms = taxonomy_get_tree($ovid);
      foreach ($terms as $term) {
        if ($delta == 'official_latest_'. $term->tid) {
          $block['subject'] = t("Latest @name", array('@name' => $term->name));
          $block['content'] = theme('photo_gallery_block', 'photos_official', array($term->tid), 'photos_official', array($term->tid), variable_get('photo_gallery_'. $delta .'_preset', 'preview_crop'));
          break;
        }
      }
    }