I am a little confused. It's not "another script", it part of the Mootools framework:
http://mootools.net/core/docs/1.5.2/Types/Function#Function:periodicalMootools may have fallen out of favor and is being deprecated in J! in favor of jQuery, but it is still a major JS framework library, and is still shipped with J!.
Overriding global function prototypes is NOT something which should be done lightly, and DEFINITELY should not tread on things like jQuery or Mootools.
I have a coder that states:
"There's absolutely no reason they need to do that, they could do it in native jquery, or put those functions in a "closure" so they don't pollute the global Javascript name space."
Can you pass this along to Shape5's coder? If not I will just have to find another image and content type of module....
Thanks in advance.