Ticket #245 (closed task: fixed)
Invalid form submission -> "This is not a valid form"
|Reported by:||karel||Owned by:||mpo|
When the user tries to submit an invalid form an alert box pops up saying "This is not a valid form\nSubmit canceled."
We should make it possible for the developer to provide another message and to present the message in some other way (e.g. toggle some form-level <div role="messages"/> or show a nice jquery dialog)