[jQuery] Function overriding

[jQuery] Function overriding


Consider I have a simple plugin, e.g.
jQuery.example = function(name) {
    sayHello = function(str) {
alert("jQuery.example.sayHello: " + str);
    };
sayHello(name);
};
at sometime later, I would want to override the original sayHello
method(), so I add,
jQuery.example.sayHello = function(str) {
     alert("jQuery.example.sayHello(Overrided): " + str);
};
But this does not work.
Any idea?
Thanks.