public function getLastWidth($mode = false)
    {
        for ($k=count($this->table)-1; $k>=0; $k--) {
            if ($this->table[$k]['width']) {
                $w = $this->table[$k]['width'];
                if ($mode) {
                    $w+= $this->table[$k]['border']['l']['width'] + $this->table[$k]['padding']['l'] + 0.02;
                    $w+= $this->table[$k]['border']['r']['width'] + $this->table[$k]['padding']['r'] + 0.02;
                }
                return $w;
            }
        }
        return $this->_pdf->getW() - $this->_pdf->getlMargin() - $this->_pdf->getrMargin();
    }