Can anyone recommend a way to track QTVR content views?

What I want to know is how many visitors, unique and repeat, interact with one
panorama
(possibly to be multinodal, in which case I'd like to know how many nodes are
visited) on a
site (actually, two sites) for a half-year period.

StatCounter.com tracks much (IP addresses, exit page views, referrers, etc.),
including
pageviews (the latest 500 for free; more, for a fee) for each page on which its
code is
placed within a site, so I can get an estimate of sorts by placing each QTVR on
its own
webpage that carries the StatCounter code (JavaScript). Each pageload is thus a
QTVR "hit."
However, that won't actually tell me whether people interact with the QTVR,
something in
which I have an academic interest.

I am planning to write a JavaScript that reads cursor coordinates with
onMouseClick; if the
coordinates are inside the QTVR, then that is, I think, strongly suggestive of
interaction. If
the click is in the QTVR, a window with the StatCounter code could pop up, thus
registering
a viewer hit. However, if the viewer has "block popups" enabled, I'm probably
out of luck.

Is it possible, perhaps using LiveStage Pro, to embed HTML/JavaScript code
within the
QTVR? Can the QTVR itself report that it's being interacted with? If so, how?

Another option is to offer the QTVR content but only as downloads, which could
then be
tracked with Download.com. (I must read more about their service to make
certain.) But
then I'm back to assuming that downloading/viewing = interacting.

Apparently Urchin Web Analytics' software (there are competitors, too) can do
what I want,
but my academic interest isn't currently worth $895 for two very small sites.