[
    [
        [1500595200000, 7],
        [1500681600000, 3],
        [1500768000000, 5]
    ],
    [
        [1500595200000, 0],
        [1500681600000, 0],
        [1500768000000, 0]
    ],
    [
        [1500595200000, 0],
        [1500681600000, 0],
        [1500768000000, 0]
    ]
]

$.plot($('#graph-lines'), graphData, {
        series: {
            points: {
                show: true,
                radius: 5
            },
            lines: {
                show: true,
            },
            shadowSize: 0,
        },
        grid: {
            color: '#646464',
            borderColor: 'transparent',
            borderWidth: 20,
            hoverable: true
        },
        xaxis: {
            tickSize: [1, 'day'],
            mode: "time",
            timeformat: "%d.%m",
            tickColor: 'transparent',
        },
        yaxis: {

        }
});