Analytics in Web Form

I'm trying to add a google analytics conversion tracking code to a webform submission. I', on the web from settings page ( /node/271/webform/configure ), and at the top of the page I selected Redirection location: Confirmation page.

Here is where I'm trying to add the code at the moment.
http://i.imgur.com/EA1bEau.png

Whenever I add it there and save it, I get a bunch of errors.

Where can I add this code so It will only show on the submission success page for this one webform ,and not all of them?

THanks