Dear Latex3-Team,

I have now succesfully used xor for producing 3-column output with
book.cls. Attached you will find my changes/additions to the current xor.

 * fixed horizontal float placement for starting column >1

 * added hooks for header/footer

 * added compatibility for old marks

 * added \totalwidth for correct header/footer sizing

 * added \floatwidth for float scaling

I will probably do some more refinement on the header/footer stuff, but
would appreciate some input on the interface design first.

Otherwise, if you would like to include parts of this patches, feel free
to do so.

Regards,
 Björn

--
Bjoern Pedersen                         Lichtenbergstr.1
Technische Universitaet Muenchen        D-85747 Garching
ZBE Instrumentierung FRM-II
 Tel. + 49 89 289-14707 Fax -14666