title: Checking if a date is valid in javascript
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/1353684/detecting-an-invalid-date-date-instance-in-javascript">Detecting an &ldquo;invalid date&rdquo; Date instance in JavaScript</a>  </p>
  </blockquote>
  
  
  
  <p>Is there is a function <code>IsDate()</code> in javascript?</p>