IE7 error -Unterminated string constant

I’m trying to track down the source of this error I get on this site:

Most pages in the site trip an ‘Unterminated string constant’ error in IE7 - the pages display correctly however, and Safari and Firefox don’t report the error.

The error gives a line reference, and when tracked down all contain this similar (but not identical for obvious reasons) bit of code - minus the initial #:

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