Date Insert as an option

[chipshot]

Along with products that can be shipped I also provide services that a customer could make an appointment for. (golf lessons).

I would like to add as an option a pop-calender, that the visitor can choose a Date from for an lesson.

Can this be done? Or do you know of an add-on?

 

here's an example of where I would like this feature:

 

http://www.chipshotgolfacademy.com/catalog.../products_id/32

 

Thank You