if ($this->sitemap_model->updateChangefreq($data)) {
                showMessage(lang('Changes have been saved', 'sitemap'), lang('Message', 'sitemap'));
                $this->lib_admin->log(lang('Sitemaps freq was edited', 'sitemap'));
            } else {
                showMessage(lang('Changes have not been saved', 'sitemap'), lang('Error', 'sitemap'), 'r');