Help with a PHP script

Here is my script
=========================code=============================
<?php $hour = date("G");
$today = date("g:i a");

$msg = "Good Evening.";
if($hour < 18) { $msg = "Good Afternoon."; }
if($hour < 12) { $msg = "Good Morning."; }

echo ("$msg The time is $now");

?>
=======================end code============================
I would like help on changing this script so that it will get the time from the users computer and not the server. Otherwise if I use it now a user that is on the east coast may get the wrong message, because the server is in the midwest.

Thanks!

 

For client side programming, why not use JavaScript?

 

@tarponkeith is right
I think this is exactly for you: h ttp://javascript.internet.com/page-details/time-greeting.html

if you still prefer to use PHP, you may try to use mktime() to correct server time with the time zone of your visitors