JSON - Page contents auto update with jQuery or AJAX

JSON - Page contents auto update with jQuery or AJAX

Hi,
I have a requirement in which the contents of the page should get updated automatically. I am using jQuery in my application. After googling I found that 'JSON' can be used for auto update of page contents.

In detail, the scenario is Each row of the page should get updated automatically for each AJAX call.

I don't know how to do that. Can you help me on this please?

Regards,
$astha L