@Override
		public void actionPerformed(ActionEvent e) {
			if (e.getSource() == mntmAllLog ) 
			{
				int result = JOptionPane.showConfirmDialog(null, "If you press \"Yes\", you apply to cancel your membership and exit.","Member Leave",JOptionPane.YES_NO_OPTION);
				if(result == JOptionPane.CLOSED_OPTION || result == JOptionPane.NO_OPTION ){
					return;
				} else if(result == JOptionPane.YES_OPTION){
					File file = new File("log");
					File[] list = file.listFiles();
					
					for(int i=0; i<list.length;i++)
						list[i].delete();
				}		
			}
		}