Radio Button - Add item to Cart

[Kennedy]

Greetings,

Here is what I'm trying to do.

We require that the customer choose whether they want a signature required for their delivery or not. Those that do are charged for this service (by adding an item to the shopping cart). I'm trying to have a radio button option on my shopping cart page that will, when either is clicked, add the item# from products for 'signature required on delivery', and (if present) remove the item 'no signature required on delivery' from the cart. Then vise versa for the other radio button. I'd also like to have this be a required choice before proceeding to checkout. I currently have it configured through custom field03 and field04 but it does not affect the shopping cart and thus the total the customer sees at checkout. I'm looking into javascript radio button onclick form actions, but if anyone else has had a similar experience, I'd prefer to not have to recreate the wheel.
Thanks!

[ShopSite Lauren]

I would try using the surcharge feature rather than adding/removing a product. The surcharge feature is a pull down menu by default, but you can modify the cart template to NOT add the surcharge pull down menu, then you can hard code radio buttons with the same input information as what the surcharge pull down menu typically has.
http://www.shopsite.com/help/11.0/en-US/sc/pro/surcharge.html

[Kennedy]

Thank you for the response. I have set that up and it works as it should. I guess I'm just wanting something a little different to interface with our current process / software more like the way it does now, without having to retrain the entire warehouse staff on order processing.

I will look into the xml data transfer and see if I can map the surcharge on shopsite to the appropriate item number in our system. Seems like that might be where I can do more than on the site with javascript.