Show colunms if checkbox value is 'true'

I have a form with two checkboxes on it and it links to a page (ASP VB) that
displays a dynamic table of data, what i want to know is how do i include extra
data based on the checked value of the form on the previous page? ie I want to
include an extra cloum from my table for each checkbox that is ticked, and i
don't want them included if they are unchecked? Any ideas???

meny thanks in advance