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Yes, it works! Thank you very much! Chocolate570, Have a nice day!

Chocolate570, thank you for your suggestion! I tried the example given. It returned an error mesage: "document.set1.style" is null or not an object. What is wrong! Can you help? Thank you!

I need to create a questionnaire with different set of questions. Suppose I have a lead question with three options:A and B. When user selects option A, questions 4-8 will follow. When user selects option B, questions 9-10 will follow. The rest of the questionnaire remains the same for both options.<DIV><input type radio name=sel value=A onclick="document.set1.style.visibility='visible'"> Option A <input type=radio name=sel value=B onClick="document.set2.style.visibility='visible'"> Otion B</DIV><DIV name="set1" style="visibility:hidden">Questions 4-8</DIV><DIV name="set2" style="visibility:hidden">Questions 9-10</DIV><DIV> the rest of the questionnaire</DIV> The above codes don't work! Can you help? Is there other alternative methods? Thank you!