Hi Bruce,

> Are you referring to the fact that I'm generating and working with
> the temporary tree (for grouping and sorting and such)? That in
> essence *that* becomes the intermediate format I can map other
> formats to?

Yes.

> In that case, if the need arose, I could always later change the
> representation of that temporary data if need be, and then adjust as
> needed. Right?

Yes, although of course any changes would mean changing the
stylesheets that mapped to/from that format as well.

Cheers,

Jeni

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Jeni Tennison
http://www.jenitennison.com/