Help with routes.php, please

[eluser]indapublic[/eluser]
Hello, all.

I develop multi-language system. I use this solution but I need correction with routes.

My routes.php containg now:

Code:

$route['^(ru|en)/(.+)$'] = "$2";
$route['^(ru|en)$'] = $route['default_controller'];

and mysite.ru/ru/test and mysite.ru/en/test working correctly.

But I want too this behavior:

http://mysite.ru/test -> http://mysite.ru/{default language or language i will set}/test

How I do it?

Thank you