anychart.onDocumentReady(function () {
var chart = anychart.line();
var series = chart.line([1, 2, 3, 4]);
series.id('firstSeries');
chart.line([2, 3, 4, 1]);
chart.line([3, 4, 1, 2]);
chart.line([4, 1, 2, 3]);
var seriesById = chart.getSeries('firstSeries');
seriesById.markers(true);
chart.title('Get and modify series');
chart.container('container');