Can NAV detect that it is running Embedded (in SharePoint) ?

We are running some pages in NAV - rolecenter activity pages in particular - embedded in a SharePoint site.

In that case the CLIENTTYPE in NAV is 'Web', but I need to know the difference between the normal NAV webclient and the (embedded) client from NAV, because I need to hide a specific field in the normal Web client, that must be visible on the SharePoint Client.

It is not an option to create a copy of the page because Personalisation done on the page needs to be the same on all available clients (Windows/Web/Phone/SharePoint)

Any ideas?