title: How is the `unhighlight` of JQuery.Validation called?
body: <p>How is the <code>unhighlight</code> of JQuery.Validation called?</p>
  
  <p>I have a form which Im validating. Im catching all that should be caught (ip, phone, email)</p>
  
  <p>but for some reason 2 of my dropdowns <code>&lt;select&gt;</code> which are automatically converted to <code>Select2</code> boxes are not so friendly.</p>
  
  <p>Open the form. Click save. and all the bubbles pop up to say which or what is wrong.</p>
  
  <p>Start filling them in and they start to disappear as you enter valid values.</p>
  
  <p>How-ever with the <code>Select2</code> boxes this does not happen.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>jQuery(function($) {
    var validator = $('#form').validate({
      rules: {
        x: {
          required: true
        }
      },
      messages: {},
      errorPlacement: function(error, element) {},
      highlight: function(element, errorClass, validClass) {
        var v = $(element).val();
        $(element).siblings(".err").addClass('bubble');
        if (v == '') {
          $(element).siblings(".err").html('Required field')
        }
        if (v != '') {
          $(element).siblings(".err").html('Please check format')
        }
      },
      unhighlight: function(element, errorClass, validClass) {
        $(element).siblings(".err").removeClass('bubble');
        $(element).siblings(".err").html('')
      }
    });
  });</code></pre>
  <pre class="snippet-code-css lang-css prettyprint-override"><code>form {
    margin-top: 30px;
  }
  
  input.myerror {
    margin-top: 23px;
    border: 1px solid red;
  }
  
  .yellow {
    color: yellow;
  }
  
  .bubble {
    position: relative;
    width: 140px;
    height: 20px;
    padding: 0px;
    background: #FBFFC7;
    border: #b4b833 solid 1px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    -webkit-box-shadow: 0px 1px 3px 0px rgba(255, 0, 34, 0.78);
    -moz-box-shadow: 0px 1px 3px 0px rgba(255, 0, 34, 0.78);
    box-shadow: 0px 1px 3px 0px rgba(255, 0, 34, 0.78);
    margin-left: 70px;
    margin-bottom: -15px;
    text-align: center;
    font-size: 11px;
    color: darkred;
    margin-top: -5px;
    padding-top: 2px;
    padding-left: 10px;
    margin-left: 90px;
    margin-bottom: -17px;
  }
  
  .bubble:after {
    content: "";
    position: absolute;
    bottom: -14px;
    left: 15px;
    border-style: solid;
    border-width: 14px 9px 0;
    border-color: #FBFFC7 transparent;
    display: block;
    width: 0;
    z-index: 1;
  }
  
  .bubble:before {
    content: "";
    position: absolute;
    top: 20px;
    left: 15px;
    border-style: solid;
    border-width: 14px 9px 0;
    border-color: #b4b833 transparent;
    display: block;
    width: 0;
    z-index: 0;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;link href="//code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" rel="stylesheet" /&gt;
  &lt;script src="//code.jquery.com/jquery-1.9.1.js"&gt;&lt;/script&gt;
  &lt;script src="//code.jquery.com/ui/1.10.3/jquery-ui.js"&gt;&lt;/script&gt;
  &lt;script src="//cdnjs.cloudflare.com/ajax/libs/jquery.form/3.32/jquery.form.js"&gt;&lt;/script&gt;
  &lt;script src="//cdn.jsdelivr.net/jquery.metadata/2.0/jquery.metadata.js"&gt;&lt;/script&gt;
  &lt;script src="//cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.11.1/jquery.validate.js"&gt;&lt;/script&gt;
  &lt;script src="//cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.11.1/additional-methods.js"&gt;&lt;/script&gt;
  &lt;link href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.1.0/css/bootstrap.css" rel="stylesheet" /&gt;
  &lt;script src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.1.0/js/bootstrap.js"&gt;&lt;/script&gt;
  
  
  &lt;form id="form" method="post" action=""&gt;
    &lt;div&gt;
      &lt;div class="err"&gt;&lt;/div&gt;
      &lt;label class=''&gt;Test&lt;/label&gt;
      &lt;input name="x" class="myerror" /&gt;
    &lt;/div&gt;
    &lt;input type="submit" class="button" value="Submit" name='button' /&gt;
  &lt;/form&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p><a href="http://jsfiddle.net/nel_mo/10020cer/6/" rel="nofollow noreferrer">View on JSFiddle</a></p>