Link 3D objects to anchors in HTML page?

I was wondering what would be the best way to link to HTML anchors in a webpage if my 3D buttons are part of a blend4web canvas element within such web page. Any ideas/help would be appreciated!

See attached concept:

I've created an example for you. Found the solution here.

Thank you SO MUCH for this. I will try the javascript approach.

One question, I uploaded all your files into a server to see it but the canvas is not loading, am I doing something wrong?

https://gumgum-content.s3.amazonaws.com/ads/com/product_design/mocks/blend4webtest/links/test_project.html

F12 shows me errors in the console:
Failed to load resource: the server responded with a status of 404 (Not Found) b4w.js

I think you've just copied my sources, in this case you also should have ../../dist/b4w.js (see html). The correct way to publish your application is to click build project and then "deploy project". Download the zip and unpack it on your server. The zip will include self-sufficient compiled application.

Thank you AGAIN!