Does there exist a jQuery plugin or JavaScript library that allows Venn Diagram presentation?

Question

I'm writing a jQuery application to allow analysis of data with the help of visual cues. My data is retrieved via XMLHttpRequest in the form of JSON. The visual cues include histograms, spark lines, and various other graph types. The idea is that the user is able to narrow their data via these various visual views.

My question is thus - aside from the Google Charts API, does there exist a JavaScript way of presenting a Venn Diagram?

Requirement: no Flash.

Canvas is acceptable.

Answer 1

In a word:

Raphael

Answer 2

An alternative to the vector-based Raphael approach would be processing.js which is canvas-based. That said, Raphael is a very nice drawing library as well.