 { Day: 'Friday', Keith: 20, Erica: 20, George: 25, Monica: 45, Maria: 30 },
                    { Day: 'Saturday', Keith: 30, Erica: 20, George: 30, Monica: 60, Maria: 40 },
                    { Day: 'Sunday', Keith: 60, Erica: 45, George: 90, Monica: 70, Maria: 50 }
            ];

            // prepare jqxChart settings
            var settings = {
                title: "Fitness & exercise weekly scorecard",
                description: "Time spent in vigorous exercise",
                enabl