// source --> https://cadeal-association.com/wp-content/plugins/captcha-bank/assets/global/plugins/custom/js/front-end-script.js?ver=7.0 
if (typeof (validate_digits_frontend_captcha_bank) != "function")
{
   function validate_digits_frontend_captcha_bank(event)
   {
      if (event.which != 8 && event.which != 0 && event.which != 13 && (event.which < 48 || event.which > 57))
      {
         event.preventDefault();
      }
   }
};