var imgs = new Array(); var imgcnt = 0; var thisimg = 0;
imgs[imgcnt++] = 'pics/web/Billy-Dennis.jpg';
imgs[imgcnt++] = 'pics/web/Billy.jpg';
imgs[imgcnt++] = 'pics/web/Bryan.jpg';
imgs[imgcnt++] = 'pics/web/Harley_JP.jpg';
imgs[imgcnt++] = 'pics/web/Billy2.jpg';
imgs[imgcnt++] = 'pics/web/Bryan2.jpg';
imgs[imgcnt++] = 'pics/web/Jimmy_Bud.jpg';
imgs[imgcnt++] = 'pics/web/purple_heart.jpg';

function nextImg() {
if (document.images) {
  thisimg++;
  if (thisimg >= imgcnt) thisimg = 0;
  document.rollimg.src = imgs[thisimg];
}
}
function prevImg() {
if (document.images) {
  thisimg--;
  if (thisimg < 0) thisimg = imgcnt-1;
  document.rollimg.src = imgs[thisimg];
}
}