Showing where user is on main site

[Jako]

As you know, when you click on a user that is logged into the forums, it will show what they are doing for example, "Viewing Index vBulletin.org @ 6:57 PM"

I use a login and cookie validation that checks to see if the user is logged in or out on the main pages on my site.

How would I edit the Viewing code to show if they are browsing a page on the main site, rather then the forums.

I reposted this in the other section I think it will get more replies and is more intended there, so if a mod can kindly delete this thread, I have it in the right section now. Thanks