DOCBOOK-APPS: What's FO?

--IS0zKkzwUGydFO0o
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Pardon my ignorance, but I've been using jadetex for SGML->{HTML,PDF}
and I'm wondering what FO is.  Would someone mind explaining to me
please?

Joe

--=20
"As far as the laws of mathematics refer to reality, they are not certain;
and as far as they are certain, they do not refer to reality." - Albert
Einstein, 1921

--IS0zKkzwUGydFO0o
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (FreeBSD)

iEYEARECAAYFAj1Y3/AACgkQXVIcjOaxUBbjrwCggszzkyVHDKNBtcOP7kZHpXQm
PIwAn3HfbCLEE5YRxJMaCDBoRREOU6Xg
=evtW
-----END PGP SIGNATURE-----

--IS0zKkzwUGydFO0o--