Oops, you're right! I changed my mind about how to do it while I was writing the post and I think I updated the widget in my open copy of decker and forgot to update the code snippet for you.
My mistake! I'll fix it for anyone who stumbles on the thread in the future. The codebox in the post is correct, and now so is the copied widget.
It sounds like you've got it figured out now, though. :D Good luck with your project!