img1 = new Image();
img1.src = 'img/navi_contact.png';
img2 = new Image();
img2.src = 'img/navi_location.png';
img3 = new Image();
img3.src = 'img/navi_press.png';
img4 = new Image();
img4.src = 'img/navi_programm.png';
img5 = new Image();
img5.src = 'img/navi_service.png';
img6 = new Image();
img6.src = 'img/newsletter_hover.png';