my problem is this: I've got a webpage that changes each time the user clicks the button. The title is updated, a graph. Seeing as the page now has different content, I would love to have a different commenting section. However, the url is exactly the same (because all of the content is ajax loaded) and so I'm wondering whether it is possible to have a new FB comment box be generated as well (it would need to be generated because there are hundreds of sets of content that the user can click through)?
Thanks.
Yes it is possible to generate a new comment box.
After the AJAX call, you will need to remove the old comments box from the DOM, then insert a new one into the DOM and then call the javascript function FB.XFBML.parse(); to get Facebook to rerender it.