addGBComponent(tag,0,y_count,1,1,0,0);
JTextArea tarea = new JTextArea(val,row,col);
Document doc = tarea.getDocument();
if (cb != null) doc.addUndoableEditListener(cb);
addGBComponent(new JScrollPane(tarea),1,y_count++,0,1,10,10);
tarea.setBorder(new LineBorder(SwingColors.SWING_DARK_COLOR));