ASCIIoverUTF8

gistfile1.js

//Ref: http://twitter.com/BenBE1987/statuses/115050893115797505
ASCIIoverUTF8 = {
  write: function(msg) {
    var result = '';
    (msg.length%2) && (msg+=String.fromCharCode(0));
    for (var i=0;i<msg.length; i+=2) {
      var a=msg.charCodeAt(i)&0xFF,
          b=msg.charCodeAt(i+1)&0xFF;
      result+=String.fromCharCode((a<<8) | b);
    }
    return result;
  },
  read: function(utf) {
    var result = '';
    for (var i=0;i<utf.length; i++) {
      var m=utf.charCodeAt(i);
      result+=String.fromCharCode((m>>8) & 0xFF) + String.fromCharCode(m & 0xFF);
    }
    return result;
  }
};

//Usage:
message='Hallo Welt!';
var x = ASCIIoverUTF8.write(message);
console.log('#AoU ',x);
var y = ASCIIoverUTF8.read(x);
console.log('Normal: ',y);

haha :D