void doMouseClicked(MouseEvent me){
    tp = jTree1.getPathForLocation(me.getX(),me.getY());
    if(tp == null)
    {
    }
    else if(tp.toString().equals("[Документы, Рублевые, Платежные поручения]"))
    {
      try
      {      
        if(docs==null)
        {          
        }
        else
        {
          jScrollPane1.remove(docs);
          jScrollPane1.repaint();
          jPanel3.remove(jScrollPane1);
          jPanel3.repaint();
        }
 //Возвращает вектор со строками выборки 
      Vector result = sql.select_payments();
      Vector columns = new Vector();
      columns.addElement("Номер");
      columns.addElement("Плательщик");
      columns.addElement("Сумма");
      columns.addElement("Дата");
      columns.addElement("Статус документа");
      
      model = null;
      TableModel model = new DefaultTableModel(result,columns);
      docs = null;
      JTable docs = new JTable(model);
      docs.setBorder(BorderFactory.createEtchedBorder());
      docs.setToolTipText("");
      docs.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);
      docs.setColumnSelectionAllowed(false);
      docs.setRowHeight(15);
      jScrollPane1 = new JScrollPane(docs);
      jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
      jScrollPane1.setBounds(new Rectangle(16, 13, 495, 467));
      jPanel3.add(jScrollPane1, null);
      this.getContentPane().add(jPanel3, null);       
      
      
    }catch(Exception e) {
                    e.printStackTrace(); }

    }
    else if(tp.toString().equals("[Документы, Письма]"))
    {
      try
        {
          if(docs==null)
          {          
          }
          else
          {
            jScrollPane1.remove(docs);
            jScrollPane1.repaint();
            jPanel3.remove(jScrollPane1);
            jPanel3.repaint();
          }
          Vector letters = new Vector();
          letters = sql.letters();
          Vector columns_letter = new Vector();
          columns_letter.addElement("Дата");
          columns_letter.addElement("Отправитель");
          columns_letter.addElement("Тема письма");
          model = null;
          TableModel model = new DefaultTableModel(letters,columns_letter);
          docs = null;
          docs = new JTable(model);
 //        TableColumnModel cm = new DefaultTableColumnModel();         
 //        JTableHeader tbheader = new JTableHeader(cm); 
 //        docs.setTableHeader(tbheader); 
          docs.setBorder(BorderFactory.createEtchedBorder());
          docs.setToolTipText("");
          docs.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);
          docs.setColumnSelectionAllowed(false);
          docs.setRowHeight(15);
          jScrollPane1 = new JScrollPane(docs);
          jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
          jScrollPane1.setBounds(new Rectangle(16, 13, 495, 467));
          jPanel3.add(jScrollPane1, null);
          this.getContentPane().add(jPanel3, null);       
  
  
  
        }catch(Exception ex) {
                      ex.printStackTrace(); }

    }
    else
    {
      System.out.println(tp);
    }
}

        
        jPanel3.remove(jScrollPane2);
        jPanel3.repaint();
        Vector letters = new Vector();
 //Получаю вектор значений  
        letters = sql.letters();
        Vector columns_letter = new Vector();
        columns_letter.addElement("Дата");
        columns_letter.addElement("Отправитель");
        columns_letter.addElement("Тема письма");
        model = null;
        model = new DefaultTableModel(letters,columns_letter);
        docs = null;
        docs = new JTable(model);
        docs.setBorder(BorderFactory.createEtchedBorder());
        docs.setToolTipText("");
        docs.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);
        docs.setColumnSelectionAllowed(false);
        docs.setRowHeight(15);
        jScrollPane2 = new JScrollPane(docs);
        jScrollPane2.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        jPanel3.add(jScrollPane2,borderLayout2.CENTER);      
        System.out.println("В письмах " + model.getRowCount());

 //Ask to be notified of selection changes. 
ListSelectionModel rowSM = table.getSelectionModel();
rowSM.addListSelectionListener(new ListSelectionListener() {
    public void valueChanged(ListSelectionEvent e) {
         //Ignore extra messages. 
        if (e.getValueIsAdjusting()) return;

        ListSelectionModel lsm =
            (ListSelectionModel)e.getSource();
        if (lsm.isSelectionEmpty()) {
            ... //no rows are selected 
        } else {
            int selectedRow = lsm.getMinSelectionIndex();
            ... //selectedRow is selected 
        }
    }
});

        docs.addMouseListener(new MouseAdapter(){
          public void mouseClicked(MouseEvent e)
          {
            int k=e.getClickCount();
            System.out.println(k);
            if(k==2)
            {
              JFrame pp = new pp_frame();
              pp.setVisible(true);
            }
          }
        });