Cocoa programming app with multiple view

Cocoa programming app with multiple view

I'm programming a simple application for Mac OSX, using cocoa framework. I
don't know how sending messages between 2 different view in the same
windows. My app have 2 view : first view that contains 1 form and 1 submit
button, second view that contains a WebView that loads a flash.
The steps to do are :
1) At start do a control and based on the result it shows view1 or view2
2) If view1 is visualized, on the submit action, based on inserted data,
view1 disappears and view2 appears.
I would know how build window and views and how manage this logic. Thanks.