validating JavaScript

I recently put in a lot of effort to develop a website only to have to include some JavaScript supplied by Akamai for tracking users that the Validator finds 17 different errors in. The code must go in every page for the SiteWise tacking program to operate. I told my client about this and they followed it up with Akamai. The response I have receive is:
 
"The HTML specification does not cover JavaScript.  However, the Validator does not recognize JavaScript code from HTML and attempts to "validate" it as HTML.  The SiteWise code has been tested with all common browser versions and can be used without concern for its function or performance."
 
Is this correct?
 
Thanks, Jake