How to refresh page or content in every second

Today,I am going to share one interesting snippet with you.You might had seen some websites which are providing live updates.Today,I will be showing you something similar to it.

HTML Code [It updates every 1 second & you can put loading image till content loading]:

<div id="content"><img alt="" src="load.gif" /></div>


Javascript Code:

<script type="text/javascript">
var auto_refresh = setInterval(
function ()
{
$('#content').load('content.php').fadeIn("fast");
}, 1);
</script>


Hope you guys like this!