public function initChunks()
    {
        if (!$this->t_head) {
            $this->t_head = $this->template->cloneRegion('Head');
            $this->t_row_master = $this->template->cloneRegion('Row');
            $this->t_totals = $this->template->cloneRegion('Totals');
            $this->t_empty = $this->template->cloneRegion('Empty');

            $this->template->del('Head');
            $this->template->del('Body');
            $this->template->del('Foot');
        }
    }