Multiple Additional Settings

I need to add the following additional settings:

on_sent_ok: "_gaq.push(['_trackEvent', 'Registration', 'Submit']);"
acceptance_as_validation: on

But this appears to break the form (or rather it sends the form but all fields remain filled in and the user can continually click the Submit button.

I’ve also tried wrapping the acceptance_as_validation i.e.

on_sent_ok: "_gaq.push(['_trackEvent', 'Registration', 'Submit']);"
acceptance_as_validation: "on;"

But that doesn’t work either.

Any ideas or help would be much appreciated.

https://ww.wp.xz.cn/plugins/contact-form-7/