$form->setWrapperLegendMsg( 'blockip-legend' );
$form->setHeaderText( '' );
$form->setSubmitCallback( array( __CLASS__, 'processUIForm' ) );
+ $form->setSubmitDestructive();
$msg = $this->alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit';
$form->setSubmitTextMsg( $msg );