public function command($config = array())
    {
        if (JFactory::getApplication()->isSite())
        {
            $config = new KObjectConfigJson($config);
            $config->append(array(
                'command' => NULL
            ));

            $command = $config->command;

            $command->attribs->class->append(array('btn'));

            if ($command->id === 'new' || $command->id === 'apply') {
                $command->attribs->class->append(array('btn-success'));
            }
        }

        return parent::command($config);
    }