[drupal-devel] Changing node type

I'd several post of type page, but now, I need to switch them to type book in order to make them sorteable by weigth and not only by posting date. It's safe to change the node type in the database from page to book ? In case it don't, could you suggest please a manner to achieve switching node type. Regards maykel -- ,''`. Debian GNU/Linux : :' : The universal & free Operating System `. `' El Sistema Operativo universal y libre `- http://www.debian.org/