Hello! I am new to Java Script and can't figure out how to get the form to do what I want it to do. I have three radio buttons R1, R2 and R3. Under R1, I have two sub radio buttons, R1-A and R1-B. If R2 or R3 is selected, I would like R1-A&B not selectable (only selectable if R1 is first selected). Could someone please help me with the JavaScropt to do this? Thank you!