There is a function IsDate in javascript?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://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>how can I check if a date is valid in javascript ?</p>
