Cloaked YouTube Subscribe Button Code?

Does anyone know where I can get the code to place an invisible 100% full coverage layer over a page... where if someone lands on the page and clicks (anywhere) - it will automatically subscribe them to a specific YouTube Channel (if they are logged in to Google, obviously).

I've seen a facebook like jacker that does what you want it to do but i'm not really sure about youtube subscribe option. Maybe you could try contacting a developer to help you create one.

Is there anyone here that can do such a thing?