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Westinghouse Sign This is a re-creation of a billboard that used to be in Pittsburgh; a smaller (3-logo) version of it was outside the Midtown Tunnel to Manhattan.
This one is a semi-random pattern, but the program is set up to be scripted … one of these days.
The program uses the HTML “canvas” element, which is suppored by all browsers except Internet Explorer at this time. And it uses JavaScript to draw the animation.
Remote Rollover Demonstrates the use of CSS for a “remote rollover” effect. Uses no JavaScript, Flash, or whatever. Just CSS.
Scripts and small programs I have used regularly in the past. Most of the links are to code listings that can be cut and pasted into a text editor.