Is there a PlugIn that will grey out the Sales Button until the T&C are agreed to?

Jeffrey Harbin asked 4 weeks ago

The title pretty much says it all. I used Optimize Press for WP site building and they have an option that allows you to force buyers to agree to your Terms and Conditions before the Buy Now button becomes active. It remains greyed out (visible but unclickable) until the buyers clicks the “I agree” box. Is there a plugin out there that will do the same thing so I can build a site outside of using OP? Thanks.