but as you si it is not correct. 

Why do you think it is not correct?
Because of the red underlining?
This only means it is not a correct English word. There is no English word "is_empty" (with underscore).

But what about your regex validation?

Joffm

 

I mean it is not correct because it does not . I have put this /^[1-9][0-9]?$|^100$/ at general in the input validation.

> I mean it is not correct because it does not

How do you think it's not correct ?

About tip : just put anything to have a javascript reaction : to see if it's correct,when it's OK or not .

And WHY use regexp on numeric question …

Just put max value to 100 and min value to 0.

Thank you it worked now! I just couldn't display the message properly on the tip.

{if((G1Q00009_3.NAOK lt 50 OR is_empty(G1Q00009_3.NAOK)),', 'NUK ËSHTË E MUNDUR TË VENDOSET NJË NUMËR MË I MADH SE 49.<br/>')}

I placed the above code on Question validation tip and the whole code is displayed on the question not only the sentence I want to.

I also fixed the tip. Thank you all for your feedback.

Then : it work before too but you doind't see it …

Else in place of your regexp :
www.limesurvey.org/manual/Question_type_...8em_validation_sq.29

(is_int(this.NAOK) and this.NAOK ge 0 and this.NAOK le 100) OR is_empty(this.NAOK)