This is an inline editor for facebook iframe page applications/tabs. This allows page owners to edit the content of their fan and non-fan content without having to leave their facebook application. It also includes the ability to upload images and supports html.
This also include my PHP Facebook Page Application iFrame Helper (http://codecanyon.net/item/php-facebook-page-application-iframe-helper/161101)
Please note that the Live Demo is on a test page of mine. You will only be able to view the content as editing abilities are only available for admins. I hope to get an edited version up for preview for people to play around with, but this would not have all features available.