Although I was a "Mootool'er" at first, I must recomend you to use jQuery. First of all, it's much more used, and there's alot more tutorials on it. In fact, if you check out blog.themeforest, and search for jQuery, there's a "jQuery for beginners" - a HUGE 15(16 actually) part series that will start you off from SCRATCH!

Anyways, if you still wanna go with Mootools, it's just to import it with a link tag in the HTML page.

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