JSFiddle - React, Tailwind, and code Playground

JavaScript

(function() {
    var querystring = document.location.search;

    if (/a=er/i.test(querystring)) {

      $("#_fid_341").attr("readonly", "readonly");

      var label, oldValue, newValue, log;

      $("#_fid_339, #_fid_328, #_fid_203, #_fid_103, #_fid_318, #_fid_27, #_fid_170, #_fid_28").on("change", function() {

        log = [];
        _.each([339, 328, 203, 103, 318, 27, 170, 28], function(fid) {
          oldValue = $("[name=_fid_oval_" + fid + "]").val();
          newValue = $("#_fid_" + fid).val();
          if (oldValue != newValue) {
            label = $("label[for=_fid_" + fid + "]").text();
            log.push(label + " was =" + oldValue + "; now =" + newValue);
          }
        });
        $("#_fid_341").html(log.join("\n"));
      });
    }
})();