Twitter Emoji for Everyone(twitter.github.io)

    var emojify = function(message) {
        var codes = [
          '\ud83c[\udf00-\udfff]',
          '\ud83d[\udc00-\ude4f]',
          '\ud83d[\ude80-\udeff]'
        ];
        return message.replace(new RegExp(codes.join('|'), 'g'), '<span class="emoji">$&</span>');
      }