I'm looking for a way to load a part of an external page (possibly selected by an id in the external page) into a div. Something similar to Ajax.Updater, but with the option of specifying an id to look for in the external page.

Does anything like this exist in prototype. I've been googling for examples without luck. If I can't find it soon I'll have to do some "gymnastics" with Ajax.Request and some function tied to onSuccess.