If you look at this click bank product
Instant Attraction - Use All the Openers from Brad's $3500 Workshop
Especially the order button:
If you leave the check mark opt in the add to cart button will direct you to the recurring payment link. (recurring payment)
But if you opt-out then the add to cart will direct you to the normal payment link.
I was wondering what html code should I use to do this type of link change on my sales page. I want to leave my custumers the choice to opt-out from the recurring offer before he check out.