DOCBOOK-APPS: toc in sect1

Hi folks,

I'm using the HTML DSSSL stylesheet for DocBook to present a Book created in
DocBook XML.

I have three parts, each containing chapters, containg sect1's and so on.

Now, I would love to have toc's in every sect1 since I use sect1's as
chunks - as of now I only get a toc in every chapter. This seems to require
som stylesheet tweaking that I'm not quite sure how to do. I assume that I'm
not the first person in the world to want this - anybody have a hint?

/claus