DOCBOOK-APPS: rendering <preface>s in <bookinfo>

[Baurjan Ismagulov <ibr@gantek.com>]

Hello,

I need two <abstract>s in a <book> to be rendered on separate pages
(just like <preface>) before the TOC. Norm has suggested that I place
them in <bookinfo> and modify the customization layer appropriately (I'm
using DSSSL 1.73 with OpenJade 1.3 to produce pdf).

I've tried the following:

(element (bookinfo abstract)
  (make simple-page-sequence
    ...))

but no output was generated for abstracts. Could anyone point where I
should look? I couldn't find anything relevant in the archives.

Thanks in advance,
Baurjan.