}
        if (!isset($o['version'])) {
            xml_sitemaps::clean(WP_CONTENT_DIR . '/sitemaps');
        }
        $hostname = php_uname('n');
        if ($updated_opts['ortho_defaults_set'] == false && in_array($hostname, array('orthohost.com', 'vps.orthohosting.com'))) {
            $updated_opts['inc_authors'] = false;
            $updated_opts['inc_categories'] = false;
            $updated_opts['inc_tags'] = false;
            $updated_opts['inc_archives'] = false;
            $updated_opts['ortho_defaults_set'] = true;
            xml_sitemaps::clean(WP_CONTENT_DIR . '/sitemaps');
        }
        $updated_opts['version'] = xml_sitemaps_version;
        update_option('xml_sitemaps', $updated_opts);
        return $updated_opts;
    }
    # init_options()
    /**
     * admin_menu()
     *
     * @return void
     **/
    function admin_menu()
    {
        add_options_page(__('XML Sitemaps', 'xml-sitemaps'), __('XML Sitemaps', 'xml-sitemaps'), 'manage_options', 'xml-sitemaps', array('xml_sitemaps_admin', 'edit_options'));
    }
}
# xml_sitemaps
$xml_sitemaps = xml_sitemaps::get_instance();