jQuery: code to validate before submiting

[tirengarfio]

Hi,

I'm trying to validate my form before submiting it. I'm trying it with this code below, but it always submit the form values:

$('#gestione_profilo').submit(function () {

    $("#gestione_profilo").validate({

        rules: {

            'person_data[document_number]': "required"

        },

        messages: {

            'person_data[document_number]': "required"

        }

    });


    form_data = $(this).serialize();

    $.ajax({

        url: "<?php echo url_for('profile/index') ?>",
        type: "POST",
        data: form_data,
        success: function() { $("#forma_profile").unmask(); }

        });

        $("#forma_profile").mask("Aggiornando dati...");

        return false;

    });

Any help?

Regards

Javier