gistfile1.rb

select_tag :language,
           options_for_select(I18n.available_locales.to_a.map{ |locale| [t('name', :locale => locale), locale] },
           I18n.locale.to_sym)

gistfile2.txt

Snippet displays localized language selector. Sample: http://www.picamatic.com/show/2009/08/19/01/32/4780070_106x131.png

The structure of the locales should be lika that:

en:
  name: "English"
---
ru:
  name: "Русский"
---
hr:
  name: "Hrvatska"

Works in Rails 2.3.x