The best way I have found to do this is to create 2 web interface sites. one configured for the native connector and one for HTML5. I put a URL in the message centre with a message like "This is the native connector site. Click for HTML 5". A similar message with a URL back to the native connector site is on the HTML 5 site.  Scott.
Is it possible to setup both HTML5 and the Native connector for my users? What would be the best setup?
Best Practice for configuring HTML5 and Native Connector simultaneously.