function ease_out_elastic(arg0, arg1, arg2, arg3)
{
    var _s = 1.70158;
    var _p = 0;
    var time = arg0;
    var start = arg1;
    var change = arg2;
    var duration = arg3;
    if (time == 0 || change == 0)
        return start;
    time /= duration;
    if (time == 1)
        return start + arg2;
    if (!_p)
        _p = duration * 0.3;
    if (change < abs(arg2))
    {
        change = arg2;
        _s = _p * 0.25;
    }
    else
    {
        _s = (_p / (2 * pi)) * arcsin(arg2 / change);
    }
    return (change * power(2, -10 * time) * sin((((time * duration) - _s) * (2 * pi)) / _p)) + arg2 + start;
}