Mollom captcha on custom form

We use Mollom on a custom form to add comments to pages. In many cases, Mollom is unsure whether new comments are spam or not, so it reloads the page and shows the captcha field.


In reloading the page, the existing comment is lost.



The problem is that users are getting confused (and understandably miffed) if a comment they spent some time to write is lost, and they have to start from scratch.



Any ideas how we can avoid the comment field from being cleared when Mollum wants to use the captcha field?



Thanks,

Jaco