public  String goAction()
  {
    // Add event code here...
    CommonBean cb = (CommonBean)FacesContext.getCurrentInstance().getExternalContext().getRequestMap().get("commonBean");
     if  (cb ==  null )
    {
      cb =  new  CommonBean();
      FacesContext.getCurrentInstance().getExternalContext().getRequestMap().put("commonBean", cb);
    }
    System.out.println(tree.getFocusRowKey());
    System.out.println(tree.getRowIndex());
    tree.setRowKey(tree.getFocusRowKey());
    RubricItem ri = (RubricItem)tree.getRowData();
    cb.setDescr(ri.getDescr());
     return  "success";
  }