diff -r 7b55777486c3 -r 75ba66457232 src/js/i18n.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/js/i18n.js	Fri Apr 06 16:55:34 2012 +0200
@@ -0,0 +1,70 @@
+IriSP.I18n = function() {
+    this.messages = {};
+    this.base_lang = 'en';
+}
+
+IriSP.I18n.prototype.getLanguage = function(lang) {
+    var _lang = (
+        typeof lang != "undefined"
+        ? lang
+        : (
+            typeof IriSP.language != "undefined"
+            ? IriSP.language
+            : this.base_lang
+        )
+    );
+    return (
+        typeof this.messages[_lang] == "object"
+        ? _lang
+        : (
+            typeof this.messages[this.base_lang] == "object"
+            ? this.base_lang
+            : null
+        )
+    )
+}
+
+IriSP.I18n.prototype.getMessages = function(lang) {
+    var _lang = this.getLanguage(lang);
+    return (
+        _lang != null
+        ? this.messages[_lang]
+        : {}
+    );
+}
+
+IriSP.I18n.prototype.getMessage = function(message, lang) {
+    var _msgs = this.getMessages(lang);
+    return (
+        typeof _msgs[message] != "undefined"
+        ? _msgs[message]
+        : message
+    )
+}
+
+IriSP.I18n.prototype.addMessage = function(lang, messagekey, messagevalue) {
+    if (typeof this.messages[lang] == "undefined") {
+        this.messages[lang] = {};
+    }
+    this.messages[lang][messagekey] = messagevalue;
+}
+
+IriSP.I18n.prototype.addMessages = function(messagesObj) {
+    var _this = this;
+    IriSP.underscore(messagesObj).each(function(_messages, _lang) {
+        IriSP.underscore(_messages).each(function(_value, _key) {
+            _this.addMessage(_lang, _key, _value);
+        })
+    });
+}
+
+IriSP.i18n = new IriSP.I18n();
+
+IriSP.i18n.addMessages({
+    "fr": {
+        "loading_wait": "Chargement en cours, veuillez patienter…"
+    },
+    "en": {
+        "loading_wait": "Loading, please wait…"
+    }
+})