incrementing item numbers in docbook

[Paul Faulstich <psf@waltzingcat.com>]

Hi all,

I am creating a modular document with chapters and sections. Some of the sections are labs.  I'm hoping to auto-number the labs, so I end up with something like this:

Book

* Chapter 1

** Section 1

** Section 2: Lab 1.1

** Section 3

** Section 4: Lab 1.2

** Section 5: Lab 1.3

* Chapter 2

** Section 1

** Section 2: Lab 2.1

** Section 3: Lab 2.2

etc.

How do I autonumber the Lab titles?

Many thanks!

Paul