private static function _getAimeos()
{
if (!isset(self::$_aimeos)) {
require_once 'Aimeos.php';
spl_autoload_register('Aimeos::autoload');
$extdir = dirname(dirname(dirname(dirname(__FILE__))));
self::$_aimeos = new Aimeos(array($extdir), false);
}
return self::$_aimeos;
}