title: html5 form checkValidity() method not found
body: <p>I am trying to use the form method checkValidity().</p>
  <p><a href="http://html5test.com/" rel="noreferrer">http://html5test.com/</a> tells me that my browser (Chrome) support the form-level checkValidity method.</p>
  <p>However, using jsfiddle <a href="http://jsfiddle.net/LcgnQ/2/" rel="noreferrer">http://jsfiddle.net/LcgnQ/2/</a> I have tried the following html and javascript snippets:</p>
  <pre><code>&lt;form id=&quot;profileform&quot; name=&quot;profileform&quot;&gt;
      &lt;input type=&quot;text&quot; id=&quot;firstname&quot; required&gt;
      &lt;input type=&quot;button&quot; id=&quot;testbutton&quot; value=&quot;Test&quot;&gt;
  &lt;/form&gt;
  
  $('#testbutton').bind('click',function(){
  
      try{
      alert($('#profileform').checkValidity());
      }
      catch(err){alert('err='+err)};
  });
  </code></pre>
  <p>I'm getting an error: <code>object has no method checkValidity()</code></p>
  <p>What am I doing wrong?</p>