I was thinking recently that it would be cool to have an HTML style popup menu in a course and started looking at the different ways I could do this. I could use States and Variables and get really fancy... but when I started thinking about that method the amount of front-end work looked a little more time consuming than my schedule allowed. So I chose the multi-layer approach. I'm sharing my proof of concept. I would be very interested if anyone has achieved a similar effect using variables and states.