anychart.onDocumentReady(function() {
var chart = anychart.surface(getData());
chart.zGrid({stroke: {color: '#3a5fcd', thickness: 2, dash: '5 2 5'}});
chart.zAxis({title: 'Z-axis'});
chart.xAxis(false).yAxis(false);
chart.title('Set yGrid settings');
chart.container('container');