function disableBackground() {
function enableBackground() {
anychart.onDocumentReady(function () {
chart = anychart.pyramid([
{x: 'Physical', value: 125},
{x: 'Data Link', value: 125},
{x: 'Network', value: 125},
{x: 'Transport', value: 125},
{x: 'Session', value: 125},
{x: 'Presentation', value: 125},
{x: 'Application', value: 290}
chart.background('#c1ffc1 0.4');
chart.title('Enable/Disable chart background');
chart.container('container');