[someone_here]

Protovis is an excellent javascript library for making interactive SVG graphs: http://vis.stanford.edu/protovis/

[danjwilson]

Agreed. The advantage of this approach is that it also works in IE 6-8 using VML.

[giu]

Thanks for the link; didn't know about that library.

A library that is also recommendable: gRaphaël, http://g.raphaeljs.com/