@Listen("onClick = image#downBtn")
 public void downBtnClick(MouseEvent event) {
   if (logger.isDebugEnabled()) logger.debug(" downBtn button event = " + event);
   if (selectedCharts.getSelectedItem() != null) {
     int pos = selectedCharts.getSelectedIndex();
     // dont go past the bottom!
     if (pos == selectedChartsModel.size() - 1) return;
     String item = selectedChartsModel.remove(selectedCharts.getSelectedIndex());
     selectedChartsModel.add(pos + 1, item);
   }
 }
 private void addInfo(String info) {
   infoModel.add(0, info);
   while (infoModel.size() > 100) {
     infoModel.remove(infoModel.size() - 1);
   }
 }