function change(img_name,img_src) {
document[img_name].src=img_src;
}

nav_info0 = new Image();
nav_info0.src = "http://www.540-club.com/images/nav_info0.gif";
nav_info1 = new Image();
nav_info1.src = "http://www.540-club.com/images/nav_info1.gif";    
nav_schedule0 = new Image();
nav_schedule0.src = "http://www.540-club.com/images/nav_schedule0.gif";
nav_schedule1 = new Image();
nav_schedule1.src = "http://www.540-club.com/images/nav_schedule1.gif";    
nav_events0 = new Image();
nav_events0.src = "http://www.540-club.com/images/nav_events0.gif";
nav_events1 = new Image();
nav_events1.src = "http://www.540-club.com/images/nav_events1.gif";    
nav_art0 = new Image();
nav_art0.src = "http://www.540-club.com/images/nav_art0.gif";
nav_art1 = new Image();
nav_art1.src = "http://www.540-club.com/images/nav_art1.gif";    
nav_photos0 = new Image();
nav_photos0.src = "http://www.540-club.com/images/nav_photos0.gif";
nav_photos1 = new Image();
nav_photos1.src = "http://www.540-club.com/images/nav_photos1.gif";
nav_awards0 = new Image();
nav_awards0.src = "http://www.540-club.com/images/nav_awards0.gif";
nav_awards1 = new Image();
nav_awards1.src = "http://www.540-club.com/images/nav_awards1.gif";    
nav_mailinglist0 = new Image();
nav_mailinglist0.src = "http://www.540-club.com/images/nav_mailinglist0.gif";
nav_mailinglist1 = new Image();
nav_mailinglist1.src = "http://www.540-club.com/images/nav_mailinglist1.gif";      
nav_webmail0 = new Image();
nav_webmail0.src = "http://www.540-club.com/images/nav_webmail0.gif";
nav_webmail1 = new Image();
nav_webmail1.src = "http://www.540-club.com/images/nav_webmail1.gif";