X-axis major steps. Default: 10 (if AutoCalcSteps is false)

Integer

&MajorStepX={Integer}

http://static.et4.de/ElevationProfileChart/Go.ashx?Experience=develop&globalid=4926A3E100ED621DA4AA7513FA6CAE88 &AutoCalcSteps=false&MajorStepX=1000&MajorStepY=500&MinorStepX=250&MinorStepY=100