I guess this is compiled from CoffeeScript (but is still pretty nice and readable):
http://disaster.mmx-dns.com/js/_/heatmap.js -- why does (CoffeeScript?) execute the wrapped code with .call(this) rather than just ()? Is that to make it easier to embed CoffeeScript inside of JavaScript, eg, function javaScriptFoo() { ~~ CoffeeScript blah blah this
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