Handlebars localisation helper, inspired by https://gist.github.com/tracend/3261055

handlebars.localisation.js

Handlebars.registerHelper('loc', function(keyword) {
    var lang = navigator.language || navigator.userLanguage;
        
    // If lang is not found, try without subtag and fall back to en
    lang = locale[lang] || (lang.indexOf('-') !== -1 && locale[lang.split('-')[0]]) || locale['en'] ;
    
    return lang && _.template('<%= ' + keyword + ' %>', lang) || keyword;
    /* without underscore
    var keys = keyword.split(".");
    for (var i in keys) {
        lang = lang[keys[i]];
    }
    
    return lang || keyword;
    */
});