public void setRightVisible(boolean v) {
   rightPanel.setVisible(v);
   if (!v) {
     innerSplit.setDividerSize(0);
   } else {
     innerSplit.setDividerSize(5);
   }
 }
 public void setLeftVisible(boolean v) {
   leftPanel.setVisible(v);
   if (!v) {
     outterSplit.setDividerSize(0);
   } else {
     outterSplit.setDividerSize(5);
   }
 }