Localization and internationalization

I would like to add a support for  localization and internationalization. I've already made some changes and I 'd like to know what you think about. It's working in progress
thanks 
peppe

Volevo aggiungere il supporto alla localizzazione e internazionalizzazione. Ho gia fatto delle modifiche e vorrei sapere cosa ne pensate. It's working in progress
Grazie 
Peppe