Edit in JSFiddle

    function release(e) {
        pressed = false;

        clearInterval(ticker);
        if (velocity > 10 || velocity < -10) {
          target = Math.round(offset + (0.8 * velocity));
          
          target = target > max ? max : target < min ? min : target;
          amplitude = target - offset;
          
          timestamp = Date.now();
          requestAnimationFrame(autoScroll);
        }

        e.preventDefault();
        e.stopPropagation();
        return false;
    }