Problem of configuration

[eluser]Browser[/eluser]
Hello all, i have a proble with the configuration, if i write in the browser http://localhost/searchmedic2 , i obtain the follow error:

Warning: require_once(/var/www/searchmedic2/system/codeigniter/CodeIgniter.php) [function.require-once]: failed to open stream: Permission denied in /var/www/searchmedic2/index.php on line 115

Fatal error: require_once() [function.require]: Failed opening required '/var/www/searchmedic2/system/codeigniter/CodeIgniter.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/searchmedic2/index.php on line 115


CodeIgniter.php have permission 777.


Thanks you.