Window flow with TabGroup

app.js

var tg = Ti.UI.createTabGroup();

var w1 = Ti.UI.createWindow({
	backgroundColor: 'red',
	title: 'red',
	tabBarHidden: true
});

var t1 = Ti.UI.createTab({
	window: w1
});

tg.addTab(t1);

var w2 = Ti.UI.createWindow({
	backgroundColor: 'yellow',
	title: 'yellow',
	tabBarHidden: true
});

w1.addEventListener('click', function () {
	t1.open(w2);
});

var w3 = Ti.UI.createWindow({
	backgroundColor: 'blue',
	title: 'blue',
	tabBarHidden: true
});

w2.addEventListener('click', function () {
	t1.open(w3);
});

tg.open();