Alright, thanks. The thing is that the site was originally based on a Dreamweaver template, but got edited over time in non-editable areas with other programs, and it's now my job to reconnect all pages with the orignal template because of some site-wide changes.
Just didn't want to touch those comments before knowing for sure that I'm not destroying some automation routine that has been set up in some other editor (like it has happened to the original template).