Javascript multiple audio files one after another

I'm trying to use this to play three mp3 files one after another. I'm newbe on javascript, but after reading few answers from SO i wrote this:

var audioFile = new Array("3727.mp3","3706.mp3","3730.mp3");
var audio = new Array;

for (i=0; i<audioFile.length; i++) {
    audio[i] = new Audio(audioFile[i]);
    audio[i].load();
}   

for (i=0; i<audioFile.length-1; i++) {

    audio[i].addEventListener("ended", function() {
        audio[i+1].play();
    });

}   

audio[0].play();

But it plays only first file. Can anyone clarify why?

Regards!