title: jQuery event to validate input in real time
body: <p>I have a form field that I would like to validate.</p>
  
  <pre><code>&lt;label for="name"&gt;Name: &lt;/label&gt;
  &lt;input type="text" id="name" name="name"&gt;&lt;/input&gt;
  </code></pre>
  
  <p>I want to do an AJAX request when the user fills the input and moves to the next input.</p>
  
  <p>What event am I supposed to listen with jQuery?</p>
  
  <p>I know jQuery Validation Plugin, but I think its too killer for such simple callback.</p>