iPhone WebApps, is there a way to detect how it was loaded? Home Screen vs Safari?

Question

I have an iPhone Web App, and I\'m interested in detecting if the app was loaded either from:

1. iPhone Safari
2. iPhone installed web app (via the add to m

Answer 1

Can be simplified to var webApp = window.navigator.standalone || false;

Can be simplified again to var webApp = window.navigator.standalone;