Is Dirty in ASP.NET Web Page
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/155739/detecting-unsaved-changes-using-javascript">Detecting Unsaved Changes using JavaScript</a>  </p>
</blockquote>



<p>My Web application has 3 web forms ,I implemented the validations in my webpage.I want to implement isdirty functionality in my web application.I want to pop up a message box in my webpage when a user clicks on sign out(which is a loginstatus control) if there any changes made to the form.</p>

<p>Environment:
Asp.net
VS2008
c#</p>
