External functions

[Sarah Reichelt]

> I'm testing to start using s_lib_databases.rev as librery but any stack find
> any handler located into it.
>
> on preopenstack
>     start using stack "/Users/Joss/documents/iwebcart/s_lib_basedades.rev"
>
> end preopenstack
>

That's the way any library is supposed to work - all stacks will use
the handlers in it. If your library stack needs anything that should
only be used by it, then put those handlers in the card script for the
first card of that stack.

Sarah