var imgs = new Array(); var imgcnt = 0; var thisimg = 0;
imgs[imgcnt++] = '01-01.jpg';
imgs[imgcnt++] = '01-02.jpg';
imgs[imgcnt++] = '01-03.jpg';
imgs[imgcnt++] = '01-04.jpg';
imgs[imgcnt++] = '01-05.jpg';
imgs[imgcnt++] = '01-06.jpg';
imgs[imgcnt++] = '01-07.jpg';
imgs[imgcnt++] = '01-08.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];
}
}