2);
			}
		}
	} else if(document.getElementById("scale_2").checked) {
		context.moveTo(20.5, sharp(y2s(0)));
		context.lineTo(w - 20.5, sharp(y2s(0)));
		context.moveTo(sharp(x2s(0)), h - 20.5);
		context.lineTo(sharp(x2s(0)), 20.5);
		context.stroke();
		context.closePath();

		context.beginPath();
		context.setLineDash([3, 2]);
		context.moveTo(20.5, sharp(y2s(0)));
		context.lineTo(-0.5, sharp(y2s(0)));
		context.moveTo(w - 20.5, sharp(y2s(0)));
		context.lineTo(w + 0.5, sharp(y2s(0)));
		context.moveTo(