Comment 4 for bug 721496

Can we use Flot instead of pChart (if we can't resolve the contradiction in their licensing).

Flot is released under MIT License and available at http://code.google.com/p/flot/

From their website:

Flot is a pure Javascript plotting library for jQuery. It produces graphical plots of arbitrary datasets on-the-fly client-side. The focus is on simple usage (all settings are optional), attractive looks and interactive features like zooming and mouse tracking.
The plugin works with Internet Explorer 6+, Firefox 2.x+, Safari 3.0+, Opera 9.5+ and Konqueror 4.x+ with the HTML canvas tag (the excanvas Javascript emulation helper is used for IE < 9).