This module is intended to allow anonymous users to create nodes, but force registration in a modal pop-up box before they can submit nodes.
This is for Drupal 6, and for use with the Modal Frame API
This work is based off the modal frame register module by jghyde in the Modal Frame Contrib Package.
This module is pretty simple -it provides a simple override for any input submit button to pop up a registration if the user is not logged in using javascript. If the user does not have javascript enabled, the save/submit button is disabled anyway so they cannot submit nodes to your site.
Form values are saved off by using jquery to set cookies in the user's web browser and once the registration modal is closed, the form values are replaced due to the page refreshing.