Replicated Mnesia table on dynamic nodes - how?

[Jacek Furmankiewicz]

When you create a Mnesia table, you are supposed to pass it a list of nodes
that it should be replicated on.
Since this a creation-time element, how do you handle nodes dynamically
being added later on?
Is there a way to specify a Mnesia table with some sort of cookie parameter,
so all nodes with the same cookie will automatically replicate the disk
table?

Thanks,
Jacek