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John Resig had a JS library for making these dynamically using the Canvas element. The project page is: http://ejohn.org/projects/jspark/

It doesn't seem to work in Safari 2 though. Looks fine in FF2.

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http://www.willarson.com/code/sparklines/sparklines.html

This library seems more feature-full. It works in Safari.

Actually, it works in Opera, Safari, Firefox and in Internet Explorer (using the excanvas). Its still evolving a bit, and I hope to add more statistical analysis to it, but its a bit fun.

Cool, one of these days I will have a computer with IE :).

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