Uncaught TypeError: Object # has no method 'toPOJO'
If you're trying to include google charts on your visual force pages, I suggest you look at this recent app exchange app from salesforce Labs: myCharts it's an unmanaged package so you can not only utilize the charts and chart building tools within it, but you can see the code to discover how they're constructed.
So, just a few thoughts here.
- Perhaps you could explain more about what you're looking for here? or trying to do? I suspect, given chart.getDataTable() that you're manipulating a google chart?