Tabless Window, Login Recognized

Two part question (related): 1.I essentially have a modal window (initialWindow) that opens up immediately after my app is launched and is only closed after my facebook login is confirmed. Once confirmed, the window disappears (like I want it to - think apps with required social media login), but the problem is that the window has a tab associated with it. This means that there is a meaningless tab in the tab bar that has no purpose. I have experimented with various methods, but my current code seems to be the only one that is working correctly.

2.I have tried to associate a function with the initialWindow that states, on app launch, if the user has already been authorized and is signeded in, prevent the initialwindow from opening. Unfortunately, I don't believe I am implementing the call the right way or might not have the function in the right file.

app.js

var initialWindow = Titanium.UI.createWindow({  
    url: 'initialWindow.js',
 
});
 
if(Ti.Facebook.loggedIn = false){
initialWindow.open()
}
else {
    initialWindow.close()
};
 
 
 
Titanium.UI.setBackgroundColor('#000');
 
 
// create tab group
var tabGroup = Titanium.UI.createTabGroup();
 
var initial = Ti.UI.createTab({
    window:initialWindow,
});
 
//
// create base UI tab and root window
//
var daily = Ti.UI.createWindow({
    backgroundColor: '#fff',
    url:'daily.js'
})
 
var tab1 = Titanium.UI.createTab({  
    icon:'',
    title:'Tab 1',
    window:dailySpecials
});
 
 
//
// create controls tab and root window
//
var win2 = Titanium.UI.createWindow({  
    title:'Tab 2',
    backgroundColor:'#fff',
});
var tab2 = Titanium.UI.createTab({  
    icon:'KS_nav_views.png',
    color:'#000',
    window:win2
});
 
var label2 = Titanium.UI.createLabel({
    color:'#999',
    text:'I am Window 2',
    font:{fontSize:20,fontFamily:'Helvetica Neue'},
    textAlign:'center',
    width:'auto'
});
 
win2.add(label2);
 
//
//  add tabs
//
tabGroup.addTab(initial);
tabGroup.addTab(tab1);  
tabGroup.addTab(tab2);  
 
// open tab group
tabGroup.open();

initialWindow.js

var Cloud = require('ti.cloud');
 
Titanium.Facebook.appid = "xxxxxxxx";//Production
Titanium.Facebook.permissions = ['publish_stream', 'read_stream'];
 
 
var win = Ti.UI.createWindow({
    navBarHidden:true,
    tabBarHidden:true,
    backgroundColor:'#fff'
 
});
 
 
var fbSignupBtn = Ti.Facebook.createLoginButton({
    bottom: 50,
    style : Ti.Facebook.BUTTON_STYLE_WIDE
});
win.add(fbSignupBtn);
 
 
 
 Titanium.Facebook.addEventListener('login', function(e) {
    if (e.success) {
        Cloud.SocialIntegrations.externalAccountLogin({
            type : 'facebook',
            token : Ti.Facebook.accessToken
        }, function(e) {
            if (e.success) {
                var user = e.users[0];
                Ti.API.info('User  = ' + JSON.stringify(user));
                Ti.App.Properties.setString('currentUserId', user.id);
                win.close();            
            } else {
                alert('Error: ' + ((e.error && e.message) || JSON.stringify(e)));
            }
        });
    } else if (e.error) {
        alert("Error = " + e.error);
    } else if (e.cancelled) {
        alert("cancelled");
    }
}); 
 
 
 
 
 
 
win.open();