This is an example from the Filament Group Lab Article: jQuery Visualize Plugin: Accessible Charts & Graphs from Table Elements using HTML 5 Canvas

Note: table is editable. Click any cell to change its value.

2009 Individual Sales by Category
food auto household furniture kitchen bath
Mary 150 160 40 120 30 70
Tom 3 40 30 45 35 49
Brad 10 180 10 85 25 79
Kate 40 80 90 25 15 119