Thank you for providing the details about your request. However in Sitefinity you cannot know what or how many languages will the client's site have ( assuming your case - you are creating a module for the market ) - they may have only one default language or quite few ( and different as well ). So such task is quite complicated and in the same time hardly achievable.
You can also agree that the module will include unnecessary code, for all the extra languages that you wish to include. Also when the user installs your module, he will be automatically provided with the option to localize the resources if a new language is being added ( the language variations may be quite a lot as well ).
the Telerik team
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