ip: {
                    trigger: 'axis',
                    axisPointer: {
                        type: 'line'
                    }
                },
                xAxis: {
                    type: 'time',
                    min: '2012-8-12',
                    max: '2012-10-01'
                },
                yAxis: {},
                series: [{
                    name: 'one point',
                    type: 'line',
                    data: [
                        [new Date('2012-9-12'),