Changing cultureinfo dynamically in silverlight page

Question

Hi,

I am developing silverlight multi lingual application. I am setting culture info in Application_Startup in app.xaml.csn and binding the content from resource files.

Its working fine.Now i want to give the option to change the language in a page. i am writing same code as in Application_Startup  in mainpage.xaml.cs.

But its not working..please help me..