I get the following error on a website at home, but not at work.
Error: object expected
probably not. its a javascript error. it's hard to partially block js, it usually works or doesn't.
it sounds like the script is assuming something incorrect about your browser.
insert standard advice about updating you browser here.
i see this a lot when using noscript in firefox, when it bocks a script containing code need by a script that's not blocked.