Is it possible to apply livevalidation to classes for multiple dynamically created inputs?

[oshihirii]

Scenario

I have an input which can be cloned and only has a class to identify it (as there cannot be more than one id with the same name).

I am trying to apply the Presence and Numericality constraints to the input, but it's not working because I am trying to use a class and not an id. Are there any ways around this?

What I've Tried

var myVariable = new LiveValidation('.my_class', { validMessage: 'valid input', wait: 500});
myVariable.add(Validate.Presence, {failureMessage: "required field"});
myVariable.add( Validate.Numericality );