anychart.onDocumentReady(function () {
var chart = anychart.waterfall([166, 43, -79, -46, 84, NaN]);
chart.minorGrid(0, {evenFill: "#E0E0E0", axis: chart.xAxis()});
chart.minorGrid(1, {axis: chart.yAxis()});
chart.minorGrid(0, false);
chart.title("Disable chart minor grid by index");
chart.container("container");