Hijacking the click handler by adding this:
:onclick => 'this.form.submit(); return false'
to the submit_tag() call for the submit button seems to work well.
Wes
I had a similar thing with a form whithout a submit button. I wanted to use form observer. The form only had select fields (and an autocomplete field).
If I hit enter, the form gets submitted, even if the cursor is in the autocomplete field. Never did quite figure it out but got round it by using field observers instead. It seemed like the focus iinternally in the form was in a virtual submit button. If I add a normal text field, the problem goes away.
Tonypm
