public function clickImage($label, $x = 1, $y = 1, $additional = false)
    {
        if (! ($form = $this->page->getFormByImage(new SelectByLabel($label)))) {
            return false;
        }
        $success = $this->load(
                $form->getAction(),
                $form->submitImage(new SelectByLabel($label), $x, $y, $additional));

        return ($success ? $this->getContent() : $success);
    }