i'm creating a form which uses ahah in Drupal 6.
I have 2 select fields. The first uses ahah in order to populate the second and it works well.
But the problem is when I add a file field to the form because the ahah call doesn't work (it doesn't appear in firebug and the page is refreshed instead of the normal behavior). If I remove the file field it works again.
Any idea please? I'm getting frustrated thinking about the solution.