: true, color: "red", upperCap: "-"}
		};

		var data2 = [
			[.7,3,.2,.4],
			[1.5,2.2,.3,.4],
			[2.3,1,.5,.2]
		];

		var data2_points = {
			show: true,
			radius: 5,
			errorbars: "y", 
			yerr: {show:true, asymmetric:true, upperCap: drawArrow, lowerCap: drawSemiCircle}
		};

		var data3 = [
			[1,2,.4],
			[2,0.5,.3],
			[2.7,2,.5]
		];

		var data3_points = {
			//do not show points
			radius: 0,
			errorbars: "y", 
			yerr: {show:true, upperCap: "-", lowerCap: "-", radius: 5}
		};

		var data4 = [
	