url problem

[eluser]alaa007[/eluser]
in your config.php file after the

Code:

<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');

you can do this

Code:

if ($_SERVER['HTTP_HOST'] == 'example.com') {
    $config['blabla'] = 'blabla';
    .......
}
elseif($_SERVER['HTTP_HOST'] == 'example.net') {
    $config['blabla'] = 'example';
    .....    
}

and so on...
hope it helps you.