Canvas

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Canvas01.js

Click the Load button to start, then click the Draw or BlitTest button. Click the Canvas01.js link to see the JavaScript source

BlitTest repeatedly draws a subset of the image shown when you press the draw button. In one case it draws a section from the left middle, in another it draws a section from the left bottom of the original draw image.

In FireFox, we need to set autocomplete='off' to get the buttons to disable properly