title: popup a message every hour in the browser using javascript
body: <p>I am new to JavaScript and trying to build a simple web application.<br>
  My requirement is that after I start the timer, I need the application to popup with a message. </p>
  
  <p><strong>Edit:</strong> Note that the user might not be viewing this webpage and if so, it is mandatory to be display it so that the user notices it, something similar to bringing to front in windows</p>
  
  <p>The reason why I'm asking is that this is very simple and can be implemented already in some frameworks. I googled and found there are so many implementations for timers, but not to show popup messages. I don't need sample code but if you can give some directions like where to start it will be nice.</p>
  
  <p>I call this an application, because the thought process is to improve this in future to bring a window which allows user to write something rather than just showing popup message.</p>
  
  <p>How can I make it happen?<br>
  What frameworks can I use?<br>
  Can you show me a simple application following my approach?</p>