2 years ago I built chartwidget . http://demo.chartidget.com http://demo.chartidget.com I haven't quite kept up with javascript charting recently. I was aimi

2 years ago I built chartwidget . http://demo.chartidget.com http://demo.chartidget.com I haven't quite kept up with javascript charting recently. I was aiming to build a google finance/yahoo finance competitor. The thing that always surprised me about google finance/yahoo finance charts was that they didn't take advantage of data already in the browser. When their flash charts would try to plot a moving average, they would make another request back to the server for more data, Why? The browser already has enough data to derive the moving average.