There is. When you are making a new link on your menu, there's an option to open the link in an inline frame. This should be what you're looking for, unless I'm misunderstanding your requirements.
Well thats good info but not quite what I needed, I am referring specificaly to a forum post. Say I want to reference a site that has some information I think is necessary to share, rather than having members open a link which takes them off the website I would rather have them be able to operate that site within a frame of the forum.
