Question about extra fields

[summitsys]

Is is possible to only display extra fields (for contacts) only when an account is a certain account? Or something along these lines. For example if I wanted to set up an internal account for Job Prospects and I wanted yo create those prospective employees as a contact. Say I wanted a field like Social Security Number. Could I only display this field as an option for fill in if a certain account was selected as tied to that contact. If someone needs clarification of what I am trying to do please let me know.

-Brian

[summitsys]

Or even only display extra fields in the account edit view if it is a certain "Type"