public function appendPages($pages = array())
    {
        $iCur = $this->data['i'];
        if (isset($this->data['pages'][$iCur])) {
            $pageCount = \count($this->data['pages']);
            $range = \range($pageCount, $pageCount+\count($pages)-1);
            $this->data['pages'][$iCur]['addPages'] = \array_merge($this->data['pages'][$iCur]['addPages'], $range);
        }
        foreach ($pages as $pageName) {
            $this->data['pages'][] = array(
                'name' => $pageName,
                'completed' => false,
                'values' => array(),
                'addPages' => array(),
            );
        }
    }