Just stumbled accross this great new site yesterday and already am beginning to refer to it as I need a function reference.
The site is : http://www.gotapi.com/
Its amazingly user friendly and as you click a topic in the center, a nice new tab appears on the top of the page allowing you to quickly jump between languages.
The loading of the functions etc is fast and the search is good! There is some great programming and thought gone into this site! I wish I thought of doing something like this.....