	}]
				},
				exporting: {
					menuItemDefinitions: {
						refreshChart: {
							onclick: function () {
								refreshChart();
							},
							text: 'Refresh'
						},
						aboutInformation: {
							onclick: function () {
								showAbout();
							},
							text: 'About...'
						}
					},
					buttons: {
						contextButton: {
							menuItems: ['refreshChart', 'separator', 'viewFullscreen', 'downloadPNG','downloadPDF', 'separator', 'aboutInformation']
						}
					}
				}
