Form validations on the client side can save the user's time by pointing out errors in the form as they are entered or auto-populating values based on other values in another field.
An example is on a pricing form where there some data relationships that should not be broken and internal logic would be enabled based on values the user selects. If a user selects value 1 from picklist A, then picklist B would show a different set of values than if the user selected value 2.
Hi cruzj,
Based on your request, I think the filtered picklist will help address your request.
The filtered picklist list allows you to show infomation in the Field 1, based on the selection Field 2 will only populate the information pertaining to that field.
http://help.autodesk.com/view/PLM/ENU/