Trigger form validations via Javascript

Hey,

Does anyone know how to trigger the form's validations from jQuery (i.e. a Javascript button)?

I'm looking for a proper solution, not just using a save button and somehow forcing it to return false;

Using F12 dev tools on a save button I concluded that I had to use NWF.FormFiller.Functions.ProcessFormsValidation, e.g.

if (NWF.FormFiller.Functions.ProcessFormsValidation(this, 'NfValidationGroupListFormformFiller', function () { }))

but didn't have any luck with that...

I found a similar question here: Nintex Form validations not triggering when using Client Click, but none of the replies seemed to apply to my question...

Manfred Lauer​ any ideas?