What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


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    How to make certain birthdates not allowed?

    Asked by cgl102770 on November 07, 2010 at 12:17 PM

    I'm doing a referral form for a child psychologist. Ideally, certain birthdays, when entered, would prompt an "error", since he's only targetting a certain age range of clients. Is there a way to do this with the date field, or the numerical field, or something else on jotform? Thank you for any suggestions!

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    JotForm Founder

    Answered by aytekin on November 08, 2010 at 09:41 AM

    It is not possible to accomplish this using JotForm. What you can do is to put the full form source code on yoru web site and then hire a javascript programmer to create a script that does check that.