ClickHeat website heat map generation tool v1.0

ClickHeat is a website heat map generation tool on HTML pages, which can display hot click areas and cold click areas on website pages.
ClickHeat is an open source software, released under the GPL license, and is free.

ClickHeat Features

Low logging activity: few function calls log hits and no increase in server load should be noticed (see Performance and Optimization)
Keywords are used to define pages when Javascript code loads, allowing you to group pages into pages.
Records screen size and browser so liquid CSS layout (using width 100%) can be tracked.

ClickHeat requires on the client side of the browser: Javascript (tested on Firefox2.0, Internet Explorer 6 and 7, Konqueror...)
On the server: Linux or Windows (since ClickHeat version 1.3), Apache or Lighttpd (others may work fine), PHP, graphics library GD2 (requires PNG support).

ClickHeat screenshot