title: push notification in ExtJS
body: <p>I am developing a HTMl5 based application using ExtJS. The server is pushing messages whenever updates comes. In this app, I have to implement push notification (instead set timer to get updated messages from server periodically).</p>
  
  <p>Is there way to implement push notification using ExtJS or using any JavaScript framework?</p>
  
  <p>--Sridhar</p>