why do script errors occur
Script errors that occur because of server-side script failures do not produce error messages in Internet Explorer, but they may create a webpage that does not display or work correctly. The troubleshooting information in this article applies to client-side script errors.f you decide to ignore the errors, you can disable script debugging. Note If this problem occurs on more than one or two sites, do not disable script debugging. To narrow down the source of the problem, use another user account, another browser, or another computer to view the webpages that triggered the script error.