img1 = new Image();
img1.src = '/images/home_on.png';
img2 = new Image();
img2.src = '/images/about_on.png';
img3 = new Image();
img3.src = '/images/catering_on.png';
img4 = new Image();
img4.src = '/images/booking_on.png';
img5 = new Image();
img5.src = '/images/contact_on.png';