I apologise that some of my links were typed incorrectly.

Here is an example design, without the MP3s included: JS - Audio Player.xar
You need to add in your own MP3s.

There is no code to change other than altering the MP3 filename.
Tested in Chrome and Firefox.

My design file is named JS - Audio Player.xar and if you add an MP3, it creates an external assets folder JS - Audio Player_xar_files containing the MP3.

You could add in a thousand MP3s and none will be downloaded until you fire up its play link.

Acorn