function snd_init(arg0)
{
    var dir = "mus/";
    if (global.launcher)
        dir = working_directory + "../mus/";
    initsongvar = dir + arg0;
    _mystream = audio_create_stream(initsongvar);
    _astream = instance_create(0, 0, obj_astream);
    _astream.mystream = _mystream;
    return _mystream;
}