function playSound(track_no)
{
	var total_tracks = 3;
	
	var prev=document.getElementById("prev");
	var next=document.getElementById("next");
	var play=document.getElementById("play");
	var play_it=document.getElementById("track");
	var stop_it=document.getElementById("audio");
	
	if (track_no =='off') {
		stop_it.Stop();
		play_it.innerHTML='<embed src="1.mp3" autostart=false hidden=true id="audio" enablejavascript="true">';
	} else {
		var track_url = 'audio/'+track_no+'.mp3';
		var prev_track = (parseInt(track_no) - 1);
		var next_track = (parseInt(track_no) + 1);
		if (prev_track <= 0) prev_track = total_tracks;
		if (next_track > total_tracks) next_track = 1;
		stop_it.Stop();
		play_it.innerHTML='<embed src="'+track_url+'" autostart=true hidden=true id="audio" enablejavascript="true" loop="true">';
		prev.href = "javascript:playSound('"+prev_track+"')";
		next.href = "javascript:playSound('" + next_track +"')";
		play.href = "javascript:playSound('" + track_no +"')";
	}
}