;
            }
        }
        chebyshev_i = min_i;
        chebyshev_context.setLineDash([4, 4]);
        chebyshev_context.beginPath();
        chebyshev_context.moveTo(chebyshev_x_to_client(chebyshev_xs[min_i]), chebyshev_y_to_client(chebyshev_ys[min_i]));
        chebyshev_context.lineTo(chebyshev_x_to_client(chebyshev_xs[min_i]), client_y);
        chebyshev_context.strokeStyle="#AA3311";
        chebyshev_context.stroke();
        chebyshev_context.closePath();
        chebyshev_context.setLineDash