var current = 0;

function next(){ // image suivante
if(document.formname.slide[current+1]){
document.images.show.src = document.formname.slide[current+1].value;
document.formname.slide.selectedIndex = ++current;}
else{first();}}

function previous(){ // retour sur l'image
if((current-1) >= 0){
document.images.show.src = document.formname.slide[current-1].value;
document.formname.slide.selectedIndex= --current;}
else{last();}}

function first(){ // première image
current=0;
document.images.show.src = document.formname.slide[0].value;
document.formname.slide.selectedIndex=0;}

function last(){ // passage à l'image suivante
current=(document.formname.slide.length-1);
document.images.show.src = document.formname.slide[current].value;
document.formname.slide.selectedIndex=current;}

function ap(text){ // contrôles lecture auto et/ou arrêt automatique
document.formname.slidebutton.value=(text == "Pause") ? "Reprendre" : "Pause";
rotate();}

function change(){ // this is for the pulldown menu
current=document.formname.slide.selectedIndex;
document.images.show.src = document.formname.slide[current].value;}

function rotate() {
if (document.formname.slidebutton.value == "Pause") {
current = (current == document.formname.slide.length-1) ? 0 : current+1;
document.images.show.src = document.formname.slide[current].value;
document.formname.slide.selectedIndex = current;
window.setTimeout("rotate()", 4000);}
}
// End -->