Captcha kode i PHP - Hvor?!

Hej folkens, sidder med en configurations fil til et joomla modul. Men kan ikke helt komme på hvor jeg skal sætte min nye key, da der ikke er nogen i dokumentet.

*/
class JConfig {
    /**
    * -------------------------------------------------------------------------
    * Site configuration section
    * -------------------------------------------------------------------------
    */
    /* Site Settings */
    var $offline = '0';
    var $offline_message = 'This site is down for maintenance.<br /> Please check back again soon.';
    var $sitename = 'Joomla!';            // Name of Joomla site
    var $editor = 'tinymce';
    var $list_limit = '20';
    var $legacy = '0';

    /**
    * -------------------------------------------------------------------------
    * Database configuration section
    * -------------------------------------------------------------------------
    */
    /* Database Settings */
    var $dbtype = 'mysql';                    // Normally mysql
    var $host = 'localhost';                // This is normally set to localhost
    var $user = '';                            // MySQL username
    var $password = '';                        // MySQL password
    var $db = '';                            // MySQL database name
    var $dbprefix = 'jos_';                    // Do not change unless you need to!

    /* Server Settings */
    var $secret = 'FBVtggIk5lAzEU9H';         //Change this to something more secure
    var $gzip = '0';
    var $error_reporting = '-1';
    var $helpurl = 'http://help.joomla.org';
    var $xmlrpc_server = '1';
    var $ftp_host = '';
    var $ftp_port = '';
    var $ftp_user = '';
    var $ftp_pass = '';
    var $ftp_root = '';
    var $ftp_enable = '';
    var $tmp_path    = '/tmp';
    var $log_path    = '/var/logs';
    var $offset = '0';
    var $live_site = '';                     // Optional, Full url to Joomla install.

    /* Session settings */
    var $lifetime = '15';                    // Session time
    var $session_handler = 'database';

    /* Mail Settings */
    var $mailer = 'mail';
    var $mailfrom = '';
    var $fromname = '';
    var $sendmail = '/usr/sbin/sendmail';
    var $smtpauth = '0';
    var $smtpuser = '';
    var $smtppass = '';
    var $smtphost = 'localhost';

    /* Cache Settings */
    var $caching = '0';
    var $cachetime = '15';
    var $cache_handler = 'file';

    /* Debug Settings */
    var $debug      = '0';
    var $debug_db     = '0';
    var $debug_lang = '0';

    /* Meta Settings */
    var $MetaDesc = 'Joomla! - the dynamic portal engine and content management system';
    var $MetaKeys = 'joomla, Joomla';
    var $MetaTitle = '1';
    var $MetaAuthor = '1';

    /* SEO Settings */
    var $sef = '0';
    var $sef_rewrite = '0';
    var $sef_suffix = '';

    /* Feed Settings */
    var $feed_limit  = 10;
}
?>