var MAX=13;
var i=0;
var vue;
myImages=new Array()
for (i=0;i<=MAX;i++){
  myImages[i]="img/accueil/"+i+".jpg"
}
i=0;
function first(){
  document.getElementById('imageviewer').src=myImages[0];
  i=0;
}
function last(){
  document.getElementById('imageviewer').src=myImages[MAX]
  i=MAX
}
function previous(){
  if (i>0)  i--;
  else      i=MAX;
  document.getElementById('imageviewer').src=myImages[i];
}
function next(){
  if (i<MAX)	i++;
  else 		i=0;
  document.getElementById('imageviewer').src=myImages[i];
}

function arreter(){
   clearTimeout(vue);
}
function diaporama() {
  next();
  vue=setTimeout("diaporama()",2500);
}