Whilst learning jQuery, and whilst teaching other guys I work with, I found I/they kept getting confused as to what 'this' meant.
So I wrote up a short tutorial entry trying to explain what jQuery's this meant in different situations. http://remysharp.com/2007/04/12/jquerys-this-demystified/ To be honest, once you've understood that it's context changes, and when it changes, you're home free. Let me know if this is useful or more importantly, contains any mistakes. Cheers, Remy.