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  $category_depth = 'top';

  if (isset($cPath) && tep_not_null($cPath)) {

    $categories_products_query = tep_db_query("select count(*) as total from " . TABLE_PRODUCTS_TO_CATEGORIES . " where categories_id = '" . (int)$current_category_id . "'");

    $cateqories_products = tep_db_fetch_array($categories_products_query);

    if ($cateqories_products['total'] > 0) {

      $category_depth = 'products'; // display products

    } else {

      $category_parent_query = tep_db_query("select count(*) as total from " . TABLE_CATEGORIES . " where parent_id = '" . (int)$current_category_id . "'");

      $category_parent = tep_db_fetch_array($category_parent_query);

      if ($category_parent['total'] > 0) {

        $category_depth = 'nested'; // navigate through the categories

      } else {

        $category_depth = 'products'; // category has no products, but display the 'no products' message

      }

    }

  }