Interesting Javascript Libraries

Stumbling across some interesting stuff...

Heat Maps:
http://clicky.com/

Easy Installation of Auto Complete
http://www.brandspankingnew.net/specials/ajax_autosuggest/ajax_autosuggest_autocomplete.html

Gray Box/Light Box/In page popup
http://orangoo.com/labs/GreyBox/
http://www.lokeshdhakar.com/projects/lightbox2/

Auto Comment you JS code
http://smartcomments.github.io/

Megamenu - Drop Downs with options
http://www.javascriptkit.com/script/script2/jkmegamenu.shtml

Form Menu Hints
http://www.javascriptkit.com/script/script2/formfieldhints.shtml