I have a form with a series of radio buttons that allow rating 1-5. In order to make it easier to get an average of those numbers, I'd like to allow NULL inputs. A snippet of my SQL method to update the database is: INSERT INTO tblContactEval (responsiveness) VALUES(<dtml-sqlvar responsiveness type="int" optional>); The form looks something like this: <input type=radio name=responsiveness value=1>1 <input type=radio name=responsiveness value=2>2 <input type=radio name=responsiveness value=3>3 <input type=radio name=responsiveness value=4>4 <input type=radio name=responsiveness value=5>5 When I do not check any radio button in that group I get a "Bad Request" error citng the "responsiveness" variable. How can I get a NULL value into my database for those situations where this category does not apply? thanks, mjm