import simplegui
Message = "vacancy"
Counter = 1

    


def draw_handler(canvas):
    global Message
    canvas.draw_text(Message, (85, 100), 40, 'Red')

def timer_handler():
    global Message
    global Counter
    if (Counter == 1):
        Message = "vacancy"
    if (Counter == -1):
        Message = ""
    Counter = Counter * -1
    
    
    



# Create a frame and assign callbacks to event handlers
frame = simplegui.create_frame("Vacancy", 300, 200)
frame.set_canvas_background('Blue')
frame.set_draw_handler(draw_handler)
timer = simplegui.create_timer(750, timer_handler)
timer.start()


# Start the frame animation
frame.start()