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public text v1 · immutableimport flash.external.*;
ExternalInterface.addCallback("switchTrack", this, switchTrack);
var sound:Sound = new Sound(this);
function switchTrack(mp3) {
position._width = 0;
sound.loadSound(mp3, true);
}
onEnterFrame = function () {
duration = sound.getBytesTotal()/40;
position._width = sound.position/duration*background._width;
grip._x = position._x+position._width;
};