Drupal6 (Open Atrium): Redirect to homepage after saving a (ticket-) comment

We are looking for a drupal6 module, that will add an extra button to the comment-form in Open Atrium. "Save & back to Home"

This button will save the comment (a comment to a ticket in Open Atrium) and redirect the user to the front page.

There is an existing module that does something similiar:
A redirect after saving a node.

Although this is not exactly what we want, it could be a starting point: http://drupal.org/project/save_edit


Thanks in advance,
Frank