+
+ // if there's a secondary y-axis, draw a vertical line for that, too.
+ if (this.dygraph_.numAxes() == 2) {
+ context.beginPath();
+ context.moveTo(halfDown(this.area.x + this.area.w), halfDown(this.area.y));
+ context.lineTo(halfDown(this.area.x + this.area.w), halfDown(this.area.y + this.area.h));
+ context.closePath();
+ context.stroke();
+ }