Processing.js makes your data visualizations, digital art, interactive animations, educational graphs, video games, etc. work using web standards and without any plug-ins. You write code using the Processing language, include it in your web page, and Processing.js does the rest. The best part is all data visualization code can be run directly on the normal browsers. No more the hassles of making the Applet code and then getting it Signed to work.
Have a look at the nice visualizations generated using this: http://processingjs.org/exhibition
Links for learning Processing.js: http://processingjs.org/learning
We plan to post a complete basic tutorial to help the beginners to make their first Processing enabled webpage. Hope that now Java Script programming for Jazzy scripts can be made much easier and portable across browsers.