Selecting prices each product depend on size and color

[Basvr]

Hi I am looking for a way or plug in to build in a dependency between 2 special fields in Virtuemart (2.0.20b).

The business is as follows:
I would like to have a product with optional several sizes and colors. De price should depend of the size of the product.

For example:
The product has got regular size 'S', costs 5 dollar and is white.
Using the special fields I realised I can select the price each size of the product.

Product size M: 10 dollar
Product size L: 15 dollar
Product size XL: 20 dollar

If I would like to have an other color then the regular one (=white) it should be automatically 15% on top of the price.

For example:
A red product size L costs 15 dollar + 15% = 17,25 dollar.
A red product size XL costs 20 dollar + 15% = 23 dollar.

How do I do this?

Regards,
Bas

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