How to do a form for validate it by enter?

[Komortie]

Hello,

I try to create my own module, but I have a problem when I want to make a form for search some informations.
If I complete the form, I cannot use “Enter” for send-it, I should use the mouse and click on “submit”.

Do you know if there are a specific attribut than I should use on Etemplate.

Thanks a lot,