function play_audio(audio_file)
{
	var audio = document.getElementById('audio');
	if ( !audio ) {
		var audio = document.createElement('div');
		audio.id = 'audio';
		document.body.appendChild(audio);
	}
	
	var vars = {'quality':'high','wmode':'transparent','audio':audio_file};
	swfobject.embedSWF('/includes/audio.swf', 'audio', 1, 1, '9.0.0', 'expressInstall.swf', vars, vars);
	return;
}