title: how to highlight invalid section — twitter bootstrap/jquery/validate plugin
body: <p>I have a form in twitter bootstrap:</p>
  
  <pre><code>&lt;div class="form-div"&gt;
  &lt;form id="fvujq-form1" method="post" action=""&gt;
                      &lt;div class="control-group name"&gt;
                      &lt;fieldset&gt;
                          &lt;label&gt;Name *&lt;/label&gt;
                          &lt;input type="text" name="name"&gt;
                      &lt;/fieldset&gt;
                      &lt;/div&gt;
                      &lt;div class="control-group email"&gt;
                      &lt;fieldset&gt;
                          &lt;label&gt;E-Mail *&lt;/label&gt;
                          &lt;input type="text" name="email"&gt;
                      &lt;/fieldset&gt;
                      &lt;/div&gt;
                      &lt;div class="control-group comment"&gt;
                      &lt;fieldset&gt;
                          &lt;label&gt;Your comment *&lt;/label&gt;
                          &lt;textarea name="comment"&gt;&lt;/textarea&gt;
                      &lt;/fieldset&gt;
                      &lt;/div&gt;
                &lt;button class="btn btn-primary"&gt;Submit&lt;/button&gt; 
              &lt;/form&gt;
          &lt;/div&gt;
  </code></pre>
  
  <p>and this is how I validate it with bassistance Validate plugin:</p>
  
  <pre><code>$(document).ready(function() {
          $("#fvujq-form1").validate({
              submitHandler:function(form) {
                  SubmittingForm();
              },
              success: function(label) {
                   label.html("&amp;#10004;").addClass("valid");
                 },
              onfocusout: function(element) { $(element).valid(); },
              focusInvalid: false,
              highlight: function(element, errorClass, validClass) {
                   $('.form-div').find('.control-group' + element.id).addClass('error');
                },
                unhighlight: function(element, errorClass, validClass) {
                   $('.form-div').find('.control-group' + element.id).removeClass('error');
                },
              errorClass: "help-inline",
              errorElement: "strong"
  </code></pre>
  
  <p>I want to add .error to the div currently validated, but this code adds class to every .control-group occurence, not only validated one :(</p>
  
  <p>thx 4 yr help.</p>