nav1 = new Image();
nav1.src='images/cooroy-mechanic-eumundi-nav1r.png';
nav2 = new Image();
nav2.src='images/cooroy-mechanic-eumundi-nav2r.png';
nav3 = new Image();
nav3.src='images/cooroy-mechanic-eumundi-nav3r.png';
nav4 = new Image();
nav4.src='images/cooroy-mechanic-eumundi-nav4r.png';