TabGroup in Modal Window.js

/*
Trying to get a tabGroup working inside a Modal window. My Main app already has a tabGroup, the modal appear over the top.

I get the tabGroup to appear, but trying to open new windows just silently fails.
*/


var tabGroup = Ti.UI.createTabGroup();

var win1 = Ti.UI.createWindow({
	title:"Test"
});

var win2 = Ti.UI.createWindow({
	title:"Blank"
});

var tab1 = Ti.UI.createTab({
	window:win1,
	title:"Test"
});

var tab2 = Ti.UI.createTab({
	window:win2,
	title:"Blank"
});

tabGroup.addTab(tab1);
tabGroup.addTab(tab2);

var button = Ti.UI.createButton({
	title:"Open",
	width:80,
	height:40
});

win1.add(button);

button.addEventListener('click',function()
{
	try
	{
		// by default the modal window has a nav bar
		// since we're embedding a navgroup inside the modal
		// window which also has a nav bar, we ask him to hide it
		var modal = Ti.UI.createWindow({
			navBarHidden:true,
			backgroundColor:"red"
		});

		var modalWin = Ti.UI.createWindow({
			backgroundColor:"red",
			tabBarHidden:true
		});

		var table = Ti.UI.createTableView({
			style:Ti.UI.iPhone.TableViewStyle.GROUPED,
			data:[{title:"Hello World 1"},{title:"Hello World"}]
		});
		
		modalWin.add(table);
		
		var done = Titanium.UI.createButton({
		 	systemButton:Titanium.UI.iPhone.SystemButton.DONE
		});
		
		modalWin.setRightNavButton(done);
		
		done.addEventListener('click',function()
		{
			modal.close();
		});
		
		//tabs
		var tabG = Ti.UI.createTabGroup({});
		var tab1 = Ti.UI.createTab({
		   window:modalWin,
		   title:"Test Tab 1"
		});
		
		tabG.addTab(tab1);
		modal.add(tabG);
		tabG.open();

		table.addEventListener('click',function(e)
		{
		    alert('Clicked !');
		    var w = Ti.UI.createWindow({
				title:e.rowData.title
			});
			
			/*
			    Try to open this new window in current tab
			    How do I reference this second tabGroup? Ti.UI.currentTab fails too.
			*/
			
		        tabG.currentTab.open(win,{animated:true});
		});

		//modal.add(nav);
		modal.open({modal:true});
	}
	catch (E)
	{
		Ti.API.error("ERROR " +E);
	}
});

tabGroup.open();