Hi all and thanks for your help in advance.
If been trying to get my head around scritps for adobe and have done some basic forms in volving them that i use for work, but this one has got me stumped and i'm hoping one of you advance users out there might be able to help me.
My form is a bulk order coffee form 
as you can see above. I'm wanting to have insteas have mulitple tick boxes have a few drop down boxes
1. Name (This is easy i can do this)
2. Cup size (three diffferent cup sizes and prices)
3. Type of drink (these also have differing values)
4. Type of milk (other than normal milk the others attrack a $0.50c surcharge)
5. Additives (these also attrack a $0.50 surcharge but not all of them do)
so the customer would pick his/her name, Size of cup, Type of Coffee, 1/2 shot or double shot and then milk and then syrups. with the cost worked out in the cost column.
I know how to add up the cost columns but not how to set up a drop down menu with differing values.
Any help you could supply would be great. Cheers