Rotate Camera Around Object - Virtual Reality

I need to rotate the camera inside the wrl file around an object.

More details: I am planning to connect head movements to the camera movements. this way the user could observe the wrl scene interactively. I need the camera target to be fixed at somewhere but it doesn't seem vrfigure and vr.canvas to have such properties.

I have been working with camera.orientation[x y z k] but cannot perform it for 2 orientations at once. This method is what I do:

%Orient Camera Around Y axis:
camera.orientation = [0 1 0 degreesInRadian]

I have also seen camorbit, camtarget, campos & camrot and so on. They seem to work on axes but not virtual reality!

I need the experienced user's attention please. Many thanks in advance. Ebad