$params['buttonBottom'] = 'PagerBottomButton';
$params['rowCount'] = $this->get(CRM_Utils_Pager::PAGE_ROWCOUNT);
if (!$params['rowCount']) {
$params['buttonBottom'] = 'PagerBottomButton';
$params['rowCount'] = $this->get(CRM_Utils_Pager::PAGE_ROWCOUNT);
if (!$params['rowCount']) {