Ok, there is no need to take your computer in anywhere. It may be an unnecessary expense. Is it doing this on all online games, or only certain online games? Are you using IE or Firefox?
I'll try to explain this more clearly. Javascript libraries do not reside on your system. When a web page requires javascript, it is either included with the web page, or the web page pulls it from somewhere else. Once all of the javascript gets to your browser, the browser interprets it, and does what the javascript wants it to do. Different browsers interpret javascript in different ways. So in general, if you are getting Javascript errors, it is either because your browser cannot interpret the Javascript, or there is an error with the Javascript. Only one of those has anything to do with you, and it is not something you can fix. Are you understanding me, or do I need to explain better?
"Take the risk of thinking for yourself, much more happiness, truth, beauty, and wisdo
m will come to you that way" - Christopher Hitchens