Edit in JSFiddle

/* Nothing to see here go ahed to the result tab or to the HTML tab */
<!doctype html>
<html>
  <head>
    <!-- jQuery --><script src="https://rawgit.com/royriojas/Astrea/master/lib/jquery/jquery.js"></script>
    <!-- jQuery UI --><script src="https://rawgit.com/royriojas/Astrea/master/lib/jqueryui/jquery-ui.js"></script>
    <link type="text/css" href="https://rawgit.com/royriojas/Astrea/master/lib/jqueryui/css/ui-lightness/jquery-ui-1.8.5.custom.css" rel="stylesheet">
    <link type="text/css" href="https://rawgit.com/royriojas/Astrea/master/astrea/css/reset-base.css" rel="stylesheet">
    <link type="text/css" href="https://rawgit.com/royriojas/Astrea/master/astrea/css/forms.css" rel="stylesheet">
    <!-- validator javascript files -->
    <link type="text/css" href="https://rawgit.com/royriojas/Astrea/master/astrea/validator/validator.css" rel="stylesheet">
    <script src="https://rawgit.com/royriojas/Astrea/master/astrea/validator/validator.js"></script>
    <style type="text/css">
      .message {
        padding: 20px;
        color: white;
        background: green;
        text-align: center;
        display: none;
      }
      
      .note {
        background: #eee;
        padding: 10px;
        margin-top: 10px;
      }
      
      .note p {
        margin-bottom: 10px;
      }
    </style>
  </head>
  <body>
    <script type="text/javascript">
      function notNullOrEmpty(val) {
        return val != null && val != "";
      }
      
      function checkUserName(field, val, validator, callback) {
        //simulate an ajax call
        setTimeout(function() {
          var fname = $('#NameField').val();
          var lname = $('#LastField').val();
          //only allow user names that not contains the original first name or last name on them.
          var isValid = notNullOrEmpty(val) && notNullOrEmpty(fname) && notNullOrEmpty(lname) && val.indexOf(fname) < 0 && val.indexOf(lname) < 0;
          callback(isValid);
        }, 200);
      }
      
      $(function() {
        $('.forms').validator();
        $('.forms .button.save').bind('validationsuccess', function() {
          $('.message').html('Yay! the data in the form is valid... doing some processing now!').show();
          
        });
      })
    </script>
    <div class="forms">
      <form action="">
        <fieldset>
          <div class="legend">
            Yet Another Validator Widget
          </div>
          <ul class="fields oneline">
            <li>
              <div>
                <label>
                  First Name : 
                </label>
                <input id="NameField" type="text" />
                <div class="validator sync  required" data-field="#NameField">
                  <p>
                    Please provide your first name
                  </p>
                  <p class="description">
                    This is how a brief description will be shown.
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div>
                <label>
                  Last Name : 
                </label>
                <input id="LastField" type="text" />
                <div class="validator sync  required" data-field="#LastField">
                  <p>
                    Please provide your last name
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div>
                <label>
                  User Name : 
                </label>
                <input id="UserNameField" type="text" />
                <div class="validator custom" data-field="#UserNameField" data-custom-function="checkUserName">
                  <p>
                    The user name can't contains your first or last names
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div>
                <label>
                  Email : 
                </label>
                <input id="EmailField" type="text" />
                <div class="validator sync  required regex" data-field="#EmailField" data-regex="([\w-\.]+)@((?:[\w]+\.)+)([a-zA-Z]{2,4})" data-modifiers="">
                  <p>
                    Please enter a valida email
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div>
                <label>
                  Select Project: 
                </label>
                <select id="sprint">
                  <option value="-1">None</option>
                  <option value="2">jQuery</option>
                  <option value="3">jQuery UI</option>
                  <option value="4">Mootools</option>
                </select>
                <div class="validator sync  compare" data-field="#sprint" data-comparison-type="notEqual" data-comparison-value="-1">
                  <p>
                    Please select a project
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div>
                <label>
                  Score (1-10) 
                </label>
                <input type="text" id="Puntuation" />
                <div class="validator sync  required range" data-field="#Puntuation" data-min-value="1" data-max-value="10">
                  <p>
                    Please provide a puntuation between 1 and 10 only!
                  </p>
                </div>
              </div>
            </li>
            <li>
              <div class="validation-summary">
                <p>
                  This message will only been show when the validation fails
                </p>
              </div>
              <p class="message">
              </p>
            </li>
            <li>
              <div class="buttons">
                <a href="#" class="validation-trigger button save" data-validation-method="async"><span>Validate the form!</span></a>
                <a href="#" class="validation-trigger button save" data-validator-group=".sync" data-validation-method="sync"><span>Validate sync!</span></a>
                <a href="#" class="validation-clear button clear"><span>Clear the validators!</span></a>
              </div>
              <div class="note">
                <p>
                  Validate the form using the sync method will fail for the case of the current custom validator. Because it involves ajax validation. Which is asynchronous 
                </p>
                <p>
                  So for this particular case we mark all the validators that can be validated in sync with the sync class, and set the data-validator-group property of the the button to only validate those fields 
                </p>
              </div>
            </li>
          </ul>
        </fieldset>
      </form>
    </div>
  </body>
</html>
/* Nothing to see here go ahed to the result tab or to the HTML tab */