formcalc scripting

Tom,
 
I am using the quote template from acrobat 7.0 professional. I have added a column to the form called "item" then comes description, then qty, then unit cost then calculated amount. What I want to be able to do is when I select from a drop down list a particular item I would like it's corresponding decscription and price to automatically be put into the description and cost per unit fields. What I would like to know is if this can be accomplished using the formcalc language?