Index: lams_tool_lamc/web/authoring/editQuestionBox.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_lamc/web/authoring/editQuestionBox.jsp,v
diff -u -r1.8 -r1.9
--- lams_tool_lamc/web/authoring/editQuestionBox.jsp	11 Nov 2006 19:01:55 -0000	1.8
+++ lams_tool_lamc/web/authoring/editQuestionBox.jsp	13 Nov 2006 00:31:22 -0000	1.9
@@ -72,7 +72,7 @@
 			function validateDuplicateCorrectAnswers() 
 			{
 				var correctCount = 0;
-				for(i = 1; i < 51; i++)
+				for(i = 0; i < 51; i++)
 				{
 					var currentId="select".concat(i)
 					var currentField=document.getElementById(currentId);
@@ -97,7 +97,87 @@
 				}
 				return true;
 			}
-			
+
+	
+			function validateSingleCorrectAnswer() 
+			{
+				var singleCorrectEntry = 0;
+				var radioCorrect=document.McAuthoringForm.correct;
+
+				if ((radioCorrect == 'null') || (radioCorrect == 'undefined'))
+				{
+					var msg = "<fmt:message key="candidates.groupSize.warning"/>";
+					alert(msg);
+					return false;				
+				}
+
+				var radioGroupSize=radioCorrect.length;
+				
+				if ((radioGroupSize == 'undefined') || (radioGroupSize < 2))				
+				{
+					var msg = "<fmt:message key="candidates.groupSize.warning"/>";
+					alert(msg);
+					return false;				
+				}
+				
+				
+				for(i = 0; i < 51; i++)
+				{
+					if (radioCorrect[i] != null)
+					{
+						if ((typeof(radioCorrect[i]) != 'undefined') && (typeof(radioCorrect[i]) != null))
+						{
+							if (radioCorrect[i].checked) 
+							{
+								singleCorrectEntry =1;
+							}
+						}
+					}
+				}
+				
+				if (singleCorrectEntry == 0)
+				{
+					var msg = "<fmt:message key="candidates.none.correct"/>";
+					var msgSetFirst = "<fmt:message key="candidates.setFirst"/>";
+					
+					alert(msg);
+					
+					if ((radioCorrect[0] != 'undefined') && (radioCorrect[0] != null))
+					{
+						radioCorrect[0].checked=true;					
+						alert(msgSetFirst);
+					}
+
+					return false;
+				}
+				return true;
+			}
+
+
+			function validateMinumumCandidateCount() 
+			{
+				var radioCorrect=document.McAuthoringForm.correct;
+
+				if ((radioCorrect == 'undefined') || (radioCorrect == null))
+				{
+					var msg = "<fmt:message key="candidates.unremovable.groupSize"/>";
+					alert(msg);
+					return false;				
+				}
+
+				
+				var radioGroupSize=radioCorrect.length;
+				
+				if ((radioGroupSize == 'undefined') || (radioGroupSize <= 2))				
+				{
+					var msg = "<fmt:message key="candidates.unremovable.groupSize"/>";
+					alert(msg);
+					return false;				
+				}
+				
+				return true;
+			}
+
 		</script>
 	</head>
 
@@ -161,7 +241,7 @@
 			<html:textarea property="feedback" rows="3" cols="70"></html:textarea>
 
 			<div class="space-bottom-top">
-				<a href="#" onclick="if (validateDuplicateCorrectAnswers()) { getElementById('newQuestionForm').submit(); }"
+				<a href="#" onclick="if (validateSingleCorrectAnswer()) { getElementById('newQuestionForm').submit(); }"
 					class="button-add-item"> <fmt:message key="label.save.question" />
 				</a>