jQuery preventDefault

by Jorge Bustos Pereda

HTML

<input type="radio" id="Svar0" name="Svar" value="Yes"> 
<input type="radio" id="Svar1" name="Svar" value="No"> 
<input type="radio" id="Svar2" name="Svar" value="MayBe">

JavaScript

$(document).ready(function() {
        var allowChoose = true;
        $('input').click(function(e) {
            if (allowChoose) {
                allowChoose = false;
            } else {
                e.preventDefault();
            }
        });
    });