anchor.diff:  
               createDatepickerInstanceForSickNote(regional, "aubFrom", "aubTo");
               
  +            <c:choose>
  +                <c:when test="${sickNote.aubPresent}">
  +                    showAUFields();
  +                </c:when>
  +                <c:otherwise>
  +                    hideAUFields();
  +                </c:otherwise>
  +            </c:choose>
  +            
           });
  +        
  +        function showAUFields() {
  +           $("div.AU").show(); 
  +        }
  +        
  +        function hideAUFields() {
  +            $("div.AU").hide();
  +            $("input#aubFrom").datepicker("setDate", null);
  +            $("input#aubTo").datepicker("setDate", null);
  +        }
  +        
       </script>
       
   </head>
  
positive.code:                 <div class="control-group">
                      <label class="control-label"><spring:message code='sicknotes.aub'/></label>
                      <div class="controls">
                          <form:radiobutton path="aubPresent" value="true" />&nbsp;<spring:message code='yes' />&nbsp;&nbsp;
                          <form:radiobutton path="aubPresent" value="false" />&nbsp;<spring:message code='no' />
                          <span class="help-inline"><form:errors path="aubPresent" cssClass="error"/></span>
                      </div>
                  </div>
  
                  <div class="control-group">
                      <label class="control-label" for="aubFrom">
                          <spring:message code="sicknotes.aub.time" />
                          <br />
  
negative.code:                     </div>
                  </div>
  
                  <div class="control-group AU">
                      <label class="control-label" for="aubTo">&nbsp;</label>
  
                      <div class="controls">
  