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I have a widget I've already written (called Picker), that extends Widget.

Y.extend(Picker, Y.Widget, {
...
}

what I'd like is create another widget, DonorPicker, that extends Picker and has all the same attributes and functionality as Picker; I just want to add an additional attribute and additional function call. What is the best way to do this?

So say Picker has defined
doSomething : function () {},
doSomething2 : function () {}

From DonorPicker, I'd like to have doSomething already defined, and just be able to override doSomething2 to do something slightly different.

looked at the docs and found a few different examples and I'm confused, any help appreciated. thanks!!