Method price_originalHeader

public function price_originalHeader(&$options)
{
    $data = array('class' => 'ph-price_original', 'title' => 'COM_PHOCACART_FIELD_ORIGINAL_PRICE_LABEL', 'tool' => 'searchtools.sort', 'column' => 'a.price_original');
    return $this->renderHeaderColumn($data, $options);
}