If you want to check javascript functions and classes available at your disposal, check mootools documentation. The current version of mootools is 1.2 however fs is still using the older 1.1. The document will not only help you code shorter but will only allow you to leverage your js knowledge. It also contains example usage. [url=http://docs111.mootools.net/]Mootools 1.1 docs[/url] [url=http://demos111.mootools.net/]Mootools 1.1 demo[/url]