Zoom option on Product page hangs the browser - bug or what ?

[goodbrat]

i have "zoom" option on my product image, but when its clicked it hangs the website - i checked on other PCs and its the same scenario.  Could this be a bug which is causing the system to stall.

http://justfrompound.com/root-catalog/default-category/badge-age-8-girl-giant.html

kindly advise

-ml