181363 Instant price update, fix

I have some problems with a instant price update script for osCommerce that needs fixing. As it is now, when you want to make selections on products that have more then 1 option avaiable, the second option overrides the first one. As an example, picture that you have 1 product with 2 options, color and size. When you choose between different sizes, the script updates the price correct, but as soon as you start with the 2nd option to choose a different color, the price goes back to 0. For the page to display the correct price, you would have to choose a different size again, for the price to update. For anyone who know osCommerce and php, this really shouldnt take to long to fix. Thanks for your time, and happy bidding =)