dbfo_toc — Specifies whether a TOC should be generated for a qandaset
<?dbfo toc="0"|"1"?>Use the <?dbfo toc?> PI as a child of a
qandaset to specify whether a table of contents
(TOC) is generated for the qandaset.
If zero, no TOC is generated
If 1 (or any non-zero value),
a TOC is generated