Ok so when you create a node, there are links under the node( add new comments, #comments, etc). Now when you click these links, they take you to a different page. What im trying to do is open #comments in lightbox. I'v managed to add add comment link into a modal using modal comments, now i want to use open #comment in lighbox.

I know it can be done i just don't know how. I know it can be done by adding "rel attribute"
Question is where do i put the rel attribute??? If it's somewhere in the theme, then isn't it better to create a custom module that dose that, just incase i change the theme.

NB; #comment is the comment count link which directs you to the node comments