How to add comments on pages out of SMF directory

[nza2k]

Hello dear SMF mates.

In order to add interactivity on my website, I would like to know if there is any easy way to allow comments for SMF members on specific pages.

Let's take an example, on this page (in French : http://www.voyage-net.com/guide/center-parc.php), there is already an include of SSI.php. Registered and connected membres are recognized. I want to allow them  to post comments, as if this page was a topic page.
=> Is there any SMF function or code to use to make it easy or do I have to start from scratch ?

Thank your for your replies

[MultiformeIngegno]

I'm really interested too!!