I have a simple list radio question with other option included.
I would like to add validation for other filed which is btw numerical only.
With help from workarounds page I wrote this code in the question following the question I want to validate.
alert("Number must be less than 100!");
If condition is met the alert is displayed but it doesn't move back one question.
Survey is set to to "Q by Q", and back button is enabled. Filter for XSS is off.