Enter key twice on scriptaculous autocompleter

The autocompleter in scriptaculous has been implemented in such a way that you need to hit th开发者_如何学运维e enter key twice in order to perform the submit action. One for selecting from or hiding the autocomplete list, and one for submitting.

How do I make the autocompleter to submit on first enter key instead?

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Create callback for afterUpdateElement and place form submit in the end of it. If it wouldn't work for you do the same thing for updateElement.