[jQuery] Can jquery alter nodes of $.ajax()-loaded xml objects?

[ml1]

If I want to change the text of a document node I just do this:

     $('element').text("new text")

But if I do that to a jquery xml object loaded using $.ajax it doesn't
seem to actually change the node contents.

     $('element', loadedXML).text("new text")

doesn't seem to change anything.  Is that normal?  What would be the
proper approach for modifying the loaded xml so I could re-submit it
back to the server with changes?

Thanks!