Missing entire correct implementation. AlertDialog widgets allow an arbitrary number of buttons with their own labels. This means you could have a dialog with a "accept" and "reject" buttons. This is not possible in mobileweb using an alert() or confirm() dialog. Instead, we'll need a custom UI widget that mimics a modal dialog. By default, there's only an OK button.
- buttonNames [stage]
Update API docs with the supported methods, properties, and constants.