I was working with an iFrame and trying to refresh the parent window when I found Responds to Parent. The first link is the plugin created by Sean Treadway and the second link is a neat tutorial by Khamsouk Souvanlasy.

http://sean.treadway.info/responds-to-parent/

http://khamsouk.souvanlasy.com/2007/5/1/ajax-file-uploads-in-rails-using-attachment_fu-and-responds_to_parent