Integration with Authentication

I don't remember seeing this in the documentation, and it is rather early in the curve, but going forward, I think it would be good to hear some suggestions with how to properly integration with various Authentication schemes, such as Forms and Windows Authentication. Also, if there is something that I have missed, please point it out.
Wally

Hi Wally,
there is a login method that you can use for Forms authentication:
var x = new Web.Services.AuthenticationService();
x.login("username", "password", _callback);