=== modified file 'dhis-2/dhis-web/dhis-web-validationrule/src/main/webapp/dhis-web-validationrule/javascript/expressionBuilder.js'
--- dhis-2/dhis-web/dhis-web-validationrule/src/main/webapp/dhis-web-validationrule/javascript/expressionBuilder.js	2015-09-08 15:56:00 +0000
+++ dhis-2/dhis-web/dhis-web-validationrule/src/main/webapp/dhis-web-validationrule/javascript/expressionBuilder.js	2016-02-01 17:58:46 +0000
@@ -96,10 +96,10 @@
 			},
 			success: function( json, status, xhr ) {
 				if ( 'OK' == json.status ) {
-					jQuery( "#formulaText").html( json.description );
+					jQuery( "#formulaText" ).html( json.description );
 				}
 				else {
-					jQuery( "#formulaText").html( json.message );
+					jQuery( "#formulaText" ).html( json.message );
 				}
 			}
 		});
@@ -155,3 +155,19 @@
 		}
 	});
 }
+
+function clearRuleExpression()
+{
+    var description = $( "#leftSideDescription" ).val();
+    $( "#leftSideExpression" ).val( "" );
+    $( "#leftSideTextualExpression" ).val( "" );
+    saveExpression( "left", description, "", "" );
+
+    description = $( "#rightSideDescription" ).val();
+    $( "#rightSideExpression" ).val( "" );
+    $( "#rightSideTextualExpression" ).val( "" );
+    saveExpression( "right", description, "", "" );
+
+	enable( "ruleType" );
+	enable( "periodTypeName" );
+}