title: JQuery SetAttribute of Input Field on Key Event
body: <p>I want to set a attribute of Input field if user Enters some characters in to the text/check box. Here is the <a href="http://jsfiddle.net/sirishkumar/dFBzW/51/" rel="nofollow">link</a> to Java Script I am trying. Below is the code</p>
  
  <pre><code>&lt;input type="text" /&gt;
  &lt;div id="output"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>
  
  <pre><code>$('input').bind('input keyup', function() {
      $('#output').html($(this).val());
      $(this).setAttribute('aria-invalid', 'true');
  });
  </code></pre>
  
  <p>But it is not working, can someone guide me?</p>