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Here is a very simple way ho to create a heat map with jQuery. The idea is to track the clicks of a user and then display the click pattern with semi-transparent dots on an overlay. You can try out the demo by first clicking around on the page and then clicking “Analyze”. Since the dots are semi-transparent, spots that have been clicked on more often, will appear slightly darker. Click on the overlay to make it invisible again and continue with the “recording”.