[0, 450], [1, 550], [2, 320], [3, 700] ]
		
			var options = {
				series: {
					lines: { show: true },
					points: { show: true }
				},
				grid: {
					hoverable: true //IMPORTANT! this is needed for tooltip to work
				},
				xaxis: {
				     ticks: [
				       [0, "great"],
				       [1, "greater"],
				       [2, "greatest"]
				     ]
				},
                yaxis: {
                    ticks: [
                        [320, "lowest"],
                        [450, "low"],
  