for insert:
$crud->set_lang_string('insert_success_message', 'Your data has been successfully stored into the database.<br/>Please wait while you are redirecting to the list page. <script type="text/javascript"> window.location = "'.site_url(strtolower(__CLASS__).'/'.strtolower(__FUNCTION__)).'"; </script> <div style="display:none"> ' );
for update:
$crud->set_lang_string('update_success_message', 'Your data has been successfully stored into the database.<br/>Please wait while you are redirecting to the list page. <script type="text/javascript"> window.location = "'.site_url(strtolower(__CLASS__).'/'.strtolower(__FUNCTION__)).'"; </script> <div style="display:none"> ' );