define([
  './locales/ca.js',
  './locales/de.js',
  './locales/es.js',
  './locales/fr.js',
  './locales/it.js',
  './locales/nl.js',
  './locales/pl.js',
  './locales/pt_br.js',
  './locales/ro.js',
  './locales/ru.js',
  './locales/tr.js',
  './locales/vi.js',
  './locales/zh.js',
  './locales/zh_cn.js'
], function () {
  var langId = (navigator.language || navigator.userLanguage).toLowerCase().replace('-', '_');
  var language = langId.substr(0, 2);
  var locales = {};

  for (index in arguments) {
    for (property in arguments[index])
      locales[property] = arguments[index][property];
  }
  if (!locales['en'])
    locales['en'] = {};

  if (!locales[langId] && !locales[language])
    language = 'en';

  var locale = (locales[langId] ? locales[langId] : locales[language]);

  function __(text) {
    var index = locale[text];
    if (index === undefined)
      return text;
    return index;
  };

  function setLanguage(language) {
    locale = locales[language];
  }

  return {
    __: __,
    locales: locales,
    locale: locale,
    setLanguage: setLanguage
  };
});