function ShowFoto(newFoto) {
  if(isDOM)document.getElementById("Foto").src = FotoVal[newFoto];
  else if(isIE) document.Foto.src = FotoVal[newFoto];
  current = newFoto;
}
function PreviousFoto() {
  current--;
  if(current<0) current = TotalImages - 1;
  ShowFoto(current);
}
function NextFoto() {
  current++;
  if (current>=TotalImages) current = 0;
  ShowFoto(current);
}