Locale switching fails with locales names with hypen (tl-PH)

```


If you try login from this locale (tl-PH) 
(http://a.maimult.ro/lmo/login.php?l=tl-PH) and you'll be lead to 
http://a.maimult.ro/lmo/project.php?l=msPH&p=28

I guess it depends your browser state or your preferred language. 
```

Original issue reported on code.google.com by `hitmana...@gmail.com` on 3 Dec 2012 at 4:44
