Is it possible to have these in a stand alone library/namespace without the need for bringing the whole of jQuery with it? Not everyone uses jQuery in their JS application and it certainly would aid those who perform server-side JS.
That pedantry aside, it seems like a decent enough chunk of code, and it's very easy to read. More libraries should be this clean.
EDIT: Actually having now looked at the code, it seems a lot of it is specifically using the phpjs library.