Thanks Jason,
That worked a treat! I just have a final question... I am selling a pack of 10 nappies and a pack of 5 nappies. I need to add an input form where the customer can specify which styles they would like when they buy these packs. I would like to link it to the "add to shopping cart button" so this information can also be seen in the shopping cart once they enter their style choices and submit it...
Thanks in advance :)