public function addMouseOver($code, $controlIds = array(), $priority = 5, $inline = false) {
        $mouseOver = new MouseOver();
        $mouseOver->setCode($code)
                  ->setControlIds($controlIds)
                  ->setPriority($priority)
                  ->setInline($inline);
        $this->builder->addEvent($mouseOver);
        return $this;
    }