private void storeError(final String error) {
        //Render and disappear it
        new Thread() {
            public void run() {
                ERROR = error;
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                if (error.equals(ERROR)) {
                    ERROR = null;
                    CardPanel.this.repaint();
                }
            }
        }.start();
    }