anchor.diff:            document.getElementById('queryClassSelect').innerHTML =
                 selectedClassName + ":  " + helpText;
             document.getElementById('classSelectDiv').style.display = 'block';
  +          $('submitClassSelect').disabled = false;
         } else {
             $('classSelectDiv').style.display='none';
         }
  
positive.code:   window.onload = function() {
        var selector = $('queryClassSelector');
        addEvent(selector, 'click', handleClassClick);
    }
  -->
  </script>
  
negative.code:           </c:forEach>
            </html:select>
            <br/>
            <html:submit styleId="submitClassSelect">
              <fmt:message key="button.selectClass"/>
            </html:submit>
          </html:form>
  