var counterDiapo ;
var tableImages ;
counterDiapo  = 0;

function changeImage(nomIm,src)
{
  document.images[nomIm].src = src;
}

function diaporama(nomImage,tabImage)
{
  counterDiapo++;
  tableImages = tabImage;
  if (counterDiapo  == tableImages.length) counterDiapo  = 0;
  changeImage(nomImage ,tableImages[counterDiapo].src);
  setTimeout("diaporama('" + nomImage + "',tableImages)",3000);
}