Index: lams_tool_vote/web/learning/AnswersContent.jsp
===================================================================
diff -u -r18e5e690d2e1a7c3d918759f7a2827c8205feaac -r81775e670cafdba35014e1d311880e7e64bff421
--- lams_tool_vote/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision 18e5e690d2e1a7c3d918759f7a2827c8205feaac)
+++ lams_tool_vote/web/learning/AnswersContent.jsp	(.../AnswersContent.jsp)	(revision 81775e670cafdba35014e1d311880e7e64bff421)
@@ -55,7 +55,7 @@
 			noSelected--;
 		}
 		
-		if((maxVotes != -1) && (noSelected + userEntry) > maxVotes){
+		if((noSelected + userEntry) > maxVotes){
 			clickedObj.checked = false;
 			noSelected--;
 			alertTooManyVotes(maxVotes);
@@ -72,13 +72,15 @@
 			}
 		</c:if>
 
-		if((maxVotes != -1) && (noSelected + userEntry) > maxVotes){
+		if((noSelected + userEntry) > maxVotes){
 			alertTooManyVotes(maxVotes);
 			return false;
+		} else if((noSelected + userEntry) == 0){
+			alert("<fmt:message key="error.empty.selection"/>");
+			return false;
 		} else {
 			return true;
 		}
-		 
 	}
 
 	function alertTooManyVotes(maxVotes) {