/**
* Hide totals block if there are no totals.
* Otherwise it will output an empty block.
*
* @return string
*/
protected function _toHtml()
{
$html = '';
if (!$this->showBlock) {
$html = $this->_getHideBlock(self::MODE_TOTALS_HIDE)->toHtml();
}
return $html . parent::_toHtml();
}
