title: JQuery validate and checkboxes (Chrome/Safari)
body: <p>I'm using the jQuery Validation Plugin 1.9.0 to validate my styled forms. I've tested IE7/8/9, Firefox, Safari, Chrome and Opera. Everything is working fine, except for validation of checkboxes in Safari and Chrome. There is no errormessage or prevention of posting the form. Is there anything I can do, or is this an issue for Safari and Chrome?</p>
  
  <p>Checkboxes:</p>
  
  <pre><code>&lt;label class="checkbox" for="joingroupkey_1"&gt;
      &lt;input type="checkbox" class="checkbox hiddeninput" value="1" id="joingroupkey_1" name="joingroupkey"&gt;
      &lt;div class="checkbox styled"&gt;&lt;/div&gt;
      Newsletter 1
  &lt;/label&gt;
  &lt;label class="checkbox" for="joingroupkey_2"&gt;
      &lt;input type="checkbox" class="checkbox hiddeninput" value="2" id="joingroupkey_2" name="joingroupkey"&gt;
      &lt;div class="checkbox styled"&gt;&lt;/div&gt;
      Newsletter 2
  &lt;/label&gt;
  &lt;label class="checkbox" for="joingroupkey_3"&gt;
      &lt;input type="checkbox" class="checkbox hiddeninput" value="3" id="joingroupkey_3" name="joingroupkey"&gt;
      &lt;div class="checkbox styled"&gt;&lt;/div&gt;
      Newsletter 3
  &lt;/label&gt;
  </code></pre>
  
  <p>Script:</p>
  
  <pre><code>$('#newsletter').validate({
      rules: {
          joingroupkey: {
              required: true,
              minlength: 1
          }
      },
      errorPlacement: function(label, element) {
          label.insertBefore(element);
      }
  });
  </code></pre>