Canvas対応ブラウザ：

Internet Explorer 9.0+ , Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ , iphone(ios 3.0+), ipad(ios 3.0+) , android(2.3+ 及び 2.3+opera , 2.3+Firefox)

API使い方:

		window.onload = function () {
			new ChartColumn({
				id:'show_demo',
				width:'980',
				height:'400',
				data:  ... 
			}).draw();
		};