is it possible to hide product options (attributes) that are out of stock

[fizzlepop]

Is there a way to configure KonaKart to not list product options where the quantity is 0?

For example, let's say I have a product "T-Shirt" with options "Color" and "Size". 

The "Color" option has possible values [Red, White], and the "Size" option has possible values [small, large]. The quantities are set to:

Red, Small T-shirt: 0
Red, Large T-shirt: 0
White, Small T-shirt: 5
White, Large T-shirt: 8

If the quantity of Red t-shirts is 0, I don't want that to display as one of the color options. Is this possible?

Thanks.