OK, I have a Drupal 7 site. And the scenario is that, let's say I'm on a page of my site that happens to have a taxonomy term assigned to it - let's say it's term ABC. Well in a block in the sidebar I have a link that sends the user to the ADD CONTENT form for a Forum Topic. The Form Topic content type has a CCK field as well (same vocab). I'm trying to automatically populate that field with the same term ABC as the page that they came from.
I was thinking this could be passed via URL as a GET parameter, but not sure if that would work and if so how to pull it off exactly.