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

//imgs[imgcnt++] = 'images/n7.jpg';
//imgs[imgcnt++] = 'images/n7.jpg';

imgs[imgcnt++] = 'images/n4.jpg';

imgs[imgcnt++] = 'images/n6.jpg';
imgs[imgcnt++] = 'images/n1.jpg';
imgs[imgcnt++] = 'images/n3.jpg';
imgs[imgcnt++] = 'images/n10.jpg';
imgs[imgcnt++] = 'images/n11.jpg';
imgs[imgcnt++] = 'images/n12.jpg';
imgs[imgcnt++] = 'images/n9.jpg';
imgs[imgcnt++] = 'images/1_0028.jpg';
imgs[imgcnt++] = 'images/2_0022.jpg';
imgs[imgcnt++] = 'images/12_0017.jpg';
imgs[imgcnt++] = 'images/7-0047.jpg';
imgs[imgcnt++] = 'images/11_0018.jpg';
imgs[imgcnt++] = 'images/9_0025.jpg';
imgs[imgcnt++] = 'images/n7.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];
}
}