title: jquery validation multiple checkbox
body: <p>i have some check boxes </p>
  
  <pre><code>&lt;input type="check" name="chkOption" id="one" /&gt;One
  &lt;input type="check" name="chkOption" id="two" /&gt;two
  &lt;input type="check" name="chkOption" id="three" /&gt;three
  &lt;input type="check" name="chkOption" id="four" /&gt;four
  </code></pre>
  
  <p>is it possible to validate "required" any one of this check box using "jquery.validate" script,</p>