@Override
	public void keyPressed(KeyEvent arg0) {
		int keyCode = arg0.getKeyCode();
	    switch( keyCode ) 
	    { 
	    	case KeyEvent.VK_ESCAPE:
	    		Fullscreen.this.dispose();
	            break;
	        case KeyEvent.VK_UP:
	        	next();
	            break;
	        case KeyEvent.VK_DOWN:
	        	back();
	            break;
	        case KeyEvent.VK_LEFT:
	        	next();
	            break;
	        case KeyEvent.VK_RIGHT :
	        	back();
	            break;	       
	     }
	}