> Anyone who thinks they know the accounting standards for every
> country in the world is almost certainly mistaken.

Not a person, no, but there is a non-profit organization, called
IBFD (http://www.ibfd.org), which claims to have all the tax and
accounting details of just about every country in the world. I
believe they even have an XML based interface to receive updates,
perhaps you can localize (in terms of tax and financial
calculations) your XSLT with this interface? ;)

Cheers,
-- Abel