Visible propery on form field

[laqa]

Hi,

I need to set Visibility (or Dimmed) property on selected form fields based on the value of a record on a linked table. There is a TiAsD table with 12 values, and a SomeForm form with 7 fields. I need, say, if a record at TiAsD is number 6, the user will be able to fill the First, Third and Fifth SomeForm fields, but the Second, Fourth, Sixth and Seventh will be dimmed. Can someone help?

Thanks,

Luis.