anychart.onDocumentReady(function () {
var chart = anychart.sparkline([1, 4, -7, 1, -3, 6, -8, 3]);
chart.seriesType('column');
chart.negativeFill({color: '#ffcc80', opacity: 0.4});
chart.title({text: 'Set fill for negative points using an object', orientation: 'top'});
chart.container('container');