Does anyone know how i can see the script being called as a web page loads?

If the coder was worth his pay, he buried the code in an external file referenced by the web server. Otherwise many types of code are compiled, e.g. (.aspx, jsp). You have to be more specific. If any of the previous conditions were true, without hacking the web server, which I don't recommend, there is not way to see the code. Also I of course need to point out that it is probably protected by copyright.

Post a link to the page with the cool effect, and maybe we can find a simillar script somewhere. I recommend you look at Nic's Javascript Page for really cool effects....