function disableBackground() {
function enableBackground() {
anychart.onDocumentReady(function () {
chart = anychart.sparkline([1.3, 2, 1.4, 4, 2.3, 6]);
chart.background('#FFF59D 0.4');
chart.title({text: 'Enable/Disable chart background', orientation: 'top'});
chart.container('container');