I have a form, with the following div created when there is an error on the email field when we submit the form. Meaning the div doesn't exist is the original form.

<div for="email_rappel" generated="true" class="mage-error" id="email_rappel-error">
'Please enter a valid email address.'</div>

I would like to make an event when the div is created..in order to do that, I've tried the following; but seems like nothing is triggered the log never happens and can't tell why.

        var emailError = jQuery('#email_rappel-error');
        emailError.bind('DOMNodeInserted DOMSubtreeModified DOMNodeRemoved', function(event) {
            console.log("test");
            if(emailError.text() === "'Please enter a valid email address.'"){
                //do something
            }
        });

Any suggestion ?