Thanks Denis, it works!

I'm happy for both options. I will use the javascript from Tony somewhere else. So many things you can do with javascript... I need to learn how to code like a pro.

LimeSurvey is so great - thanks to all!

Hi,

I try to answer to this :

Btw. I realize that it is very easy to bypass javascript so that the above code won't prevent ....

I try to answer to this :
Btw. I realize that it is very easy to bypass javascript so that the above code won't prevent ....

Huh? I think you misunderstood me - your solution is great and solved my problem.

Thanks again Denis

Oups ... my english is not very good ....

DenisChenu wrote: Oups ... my english is not very good ....

It's good enough for me to understand your suggestion
My first language is also not English - I wish it were...