I am working on a travel request form that includes airline travel. I have three parts of the form where employees can put their flight information, Flight #1, Flight #2, and Flight #3. I have a radio box which has 3 choices; One-Way, Round-Trip, and Multi-City. I would like to disable or hide the corresponding text fields in the Flights 2 & 3 section of the form if one way is checked. I would like to disable or hide the corresponding text fields in the Flight 3 section of the form if Round-Trip is checked, and enable or show all when Multi-City is checked. I am not sure where to start. Any help is appreciated.