DOCBOOK-APPS: Different recto and verso margins ...

Hi,

I have got my two-side stuff seemingly working, with the appropriate things
set in JadeTex and so forth.

However, if I use different left and right margins, to allow for the
binding that will occur, I do not seem to get these alternating on recto
and verso pages. They are the same on each page, which will create a funny
effect.

Does anyone know how to get recto and verso pages alternating their margins?

Regards
-------
Richard Sharpe, 
Samba (Team member, www.samba.org), Ethereal (Team member, www.ethereal.com)
Contributing author, SAMS Teach Yourself Samba in 24 Hours
Author, Special Edition, Using Samba