NavigationGroup Example

app.js

var win = Titanium.UI.createWindow();
var win1 = Titanium.UI.createWindow({
    backgroundColor:"red",
    title:"Red Window"
});
var nav = Titanium.UI.iPhone.createNavigationGroup({
   window: win1
});

var button = Ti.UI.createButton({
	title: 'open window',
	height: 40,
	width: 250
});

var win2 = Titanium.UI.createWindow({
    backgroundColor:"blue",
    title:"Blue Window"
});
button.addEventListener('click', function(e){
	nav.open(win2);
});
win1.add(button);

win.add(nav);
win.open();