private void createUI()
	{
		this.setLayout(new BorderLayout());
		center.add(lUserId);		
		center.add(tfUserid);
		center.add(lPassword);
		center.add(tfPassword);
		this.add(center,BorderLayout.CENTER);
		this.add(sendButton,BorderLayout.EAST);
		tfPassword.addKeyListener(this);
		sendButton.setActionCommand("send");
		sendButton.addActionListener(this);
		this.setLocation(100, 100);
		this.pack();
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
	}