Oct 19, 2012 - 03:20 AM
Just want to sum up your question:
* You have radio button with value Yes, No
When user selects Yes then you do not want to do anything.
When user selects No then you want to show a textbox for comments.
Ans. Need to capture click event of radio button.
Depend on the selected value decide whether to show Document.getElementbyID("IDofTextBoxForComment").Show/Hide
Please let me know if I have understant your question correctly or not.That will help me to provide you more details.