Reactive Options for products

Hello,

I am making a store to sell some original oil paintings. The paintings I offer will come in a couple of different canvas sizes. Now I know how to add an option for additional cost to have a different size of item, but I want to offer another option that will enable my customers to get the artwork framed. Because the framing cost is different for each size of cavas I want to put some kind of extension that will update the framing options to match the size option for the canvas.

EG. If a customer choses a painting and in the product page it has the option for 3 sizes, Small (no additional cost to the listed price), Medium ($20.00 additional cost) and Large ($30.00 additional cost).
Then I want to offer another option for framing the artwork. So if the customer has chosen "Small" then they would get the option for the "Samll size" frame at $60.00, if they have chosen the "Medium" size artwrok they will get the option for $80.00 to suit the size of the canvas etc.

Is there an option that can do this for me?
The only way that I can think of at the moment to get it to work is to list all the different canvas sizes on my products page and that looks really untidy. I really just want to list 1 item and then have multiple options that can update depending on the other options chosen.

I would apreciate any help anyone can give me.

Thanks

I have a mod called Dependent Options might do it.

http://www.opencart.com/index.php?route ... ername=rph

Let me know if you have questions.