resolution detection with notification pop-up?

[veenuisthebest]

the above code does not block them out. If you go directly to http://www.home.vinayaks.com/home.php at res 800, you'd still be able to view the page.

So, you can simply provide a link at the error page to the main page (in my case home.php)
OR you can display a message at the main page itself with the help of the above code.