code: function(e){
        $('#ep_email_form_popup').submit(function(){
          sendEmailToServer('ep_email_form_popup');
          return false;
        });
  
        // Prepare subscription before submit form
        $('#ep_email_form_popup [name=ep_email_subscribe]').on('click', function(e) {
          $('#ep_email_form_popup [name=ep_email_option]').val('subscribe');
          checkAndSend(e);
        });
  
        // Prepare unsubscription before submit form
        $('#ep_email_form_popup [name=ep_email_unsubscribe]').on('click', function(e) {
          $('#ep_email_form_popup [name=ep_email_option]').val('unsubscribe');
          checkAndSend(e);
        });
  
        if (optionsAlreadyRecovered == false) {
          getDataForUserId('ep_email_form_popup');
        } else {
          // Get datas from form in mysettings menu
          $('#ep_email_form_popup [name=ep_email]').val($('#ep_email_form_mysettings [name=ep_email]').val());
          $('#ep_email_form_popup [name=ep_email_onStart]').prop('checked', $('#ep_email_form_mysettings [name=ep_email_onStart]').prop('checked'));
          $('#ep_email_form_popup [name=ep_email_onEnd]').prop('checked', $('#ep_email_form_mysettings [name=ep_email_onEnd]').prop('checked'));
        }
      }
docs: the function to bind to the form