how to refresh particular div tag content without reloading page using jquery?

// Note : First include jquery.js file.....
<script type="text/javascript">
var auto_refresh = setInterval(
function ()
{
$('#load_div').load('load.php').fadeIn("slow");
}, 100000); // refresh every 10000 milliseconds
</script>

//index.php

<div id="load_div">
</div>

//load.php

In this page you can write your code.
like load randam user,image etc....