Volume slider

I am using this tutorial / FLA for some work;

http://www.kirupa.com/developer/mx/volume_slider.htm

However, I want to stream a large(ish) file so want it playing while it still downloads.

Can anyone help me with the actionscript here, so instead of downloading then playing, it plays automatically (or even better, after a 15 second wait);

onClipEvent (enterFrame) {
downloaded = mySound.getBytesLoaded();
total = mySound.getBytesTotal();
if (downloaded != total) {
_root.dl = “downloading song…”;
} else {
complete = 1;
_root.dl = “”;
}