edwinting

Hi there, If I have 2 domain name pointing to the same root directory, is there a way to redirect the users based on the domain name that they had typed. i.e. 1 user comes in via [a href=\"http://edwinting.com/\" target=\"_blank\"]http://edwinting.com/[/a] and I want him/her directed to a folder 2nd user comes in via [a href=\"http://elm3.org/\" target=\"_blank\"]http://elm3.org/[/a] and I wants him/her to be directed to another folder I tried using a code somewhat similar to the one below, but I could not get it to work. (Error laden) Thank you for your help! <?php /* Redirect to a different page in the current directory that was requested */ $host = $_SERVER['HTTP_HOST']; $uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\'); if ($host$uri == 'edwinting.com') { $extra = 'lemontea/'; } else if ($host$uri =='www.edwinting.com') { $extra = 'lemontea/'; } else if ($host$uri =='www.edwinting.com/index.php') { $extra = 'lemontea/'; } else { $extra = 'fionna/'; } header("Location: http://$host$uri/$extra"); exit; ?>