[jQuery] how can i write a function that accepts a callback function

[jQuery] how can i write a function that accepts a callback function


hi there, how can i write a function that accepts a callback
function?
$(selector).myFunction(argument,options,function(){
//do the thing
});
i want myFunction to load some data via(an unordored list actually)
load method end then somehow to return the wrapped elements for the
callback function, exactly like load() does.