How to remove unexpected text from Google cache

[webmastersun]

Hello,

I'm running a SEO forum http://www.webmastersun.com

My google cache text is ok but only 1 thing(error code) showed on my Google cache web page, it makes me annoy with this

on the top, it showed

'); var sidebar_align = 'right'; var content_container_margin = parseInt('320px'); var sidebar_width = parseInt('300px'); //-->

you can see full in this link

and I report that it also showed the same in old Internet explorer old versions (in web browser, not in google cache text)

If I remove this code or remove --> in vbulletin template, it will make error on forum sidebar or my forum layout. ( Note: code above is default from vbulletin template)

I saw some threads asked about that, but didn't give solutions for it.

Just want to make question here, hope I can have the best solution.

Thank you