Rendering a template in header

[kh99]

You don't need the array. I think maybe you were confusing two different ways to preRegsiter a variable: you can create an array then use it in the preRegister call, or else you can just use array() directly in the function call.

You will also need to edit your header template and insert {vb:raw teck_brb_temp} where you want it to appear. Another way to get it to appear in your header would be to use a template hook that's already in the header (if there are any - I haven't checked), in which case you'd assign the result of render() to the template hook instead of using preRegister().