The Finished Code

Here it is, the finished code for the contact form:

$(document).ready(function() {

  // enhance style of form elements

  $('fieldset').each(function(index) {
    var heading = $('legend', this).remove().text();
    $('<h3></h3>')
    .text(heading)
    .prependTo(this);
  });
  var requiredFlag = ' * ';
  var requiredKey = $('input.required:first').next('span').text();
  requiredKey = requiredFlag + requiredKey.replace(/^\((.+)\)$/,"$1");
  var conditionalFlag = ' ** ';
  var conditionalKey =
                     $('input.conditional:first').next('span').text();
  conditionalKey = conditionalFlag +
                     conditionalKey.replace(/\((.+)\)/,"$1");

  $('form :input').filter('.required')
  .next('span').text(requiredFlag).end()
  .prev('label').addClass('req-label');

  $('form :input').filter('.conditional')
  .next('span').text(conditionalFlag);

  $('<p></p>')
  .addClass('field-keys')
  .append(requiredKey + '<br />')
  .append...