Are there any known workarounds for to dynamically change tab names in Android?

If the name is input from a textField I have tried something like this:

textField.addEventListener('change', function(e){

tabGroup.close(); 
tabGroup = Titanium.UI.createTabGroup();
tab1 = Titanium.UI.createTab({
        icon:'KS_nav_views.png',
        title: text.value,
        window:win1
});
tabGroup.addTab(tab1);
tabGroup.addTab(tab2);
tabGroup.open();

});

But I end up with a black screen when I try to type somethng in the textField. Suggestions, Anybody?