// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
var imgs = new Array(); var imgcnt = 0; var thisimg = 0;

imgs[imgcnt++] = 'Graphics/Page1.jpg';
imgs[imgcnt++] = 'Graphics/Page2.jpg';
imgs[imgcnt++] = 'Graphics/Page3.jpg';
imgs[imgcnt++] = 'Graphics/Page4.jpg';
imgs[imgcnt++] = 'Graphics/Page5.jpg';
imgs[imgcnt++] = 'Graphics/Page6.jpg';
imgs[imgcnt++] = 'Graphics/Page7.jpg';
imgs[imgcnt++] = 'Graphics/Page8.jpg';
imgs[imgcnt++] = 'Graphics/Page9.jpg';
imgs[imgcnt++] = 'Graphics/Page10.jpg';
imgs[imgcnt++] = 'Graphics/Page11.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];
}
}