var rotate_delay = 4000; // delais en microseconde (4000 = 4 secs)
current = 0;

function retour(page) {
    location.href = "index.php?page="+page; 
}

function lessdelay() {
if (rotate_delay <= 1000) {
rotate_delay = rotate_delay-100;
document.forms["slideform"].delay.value = rotate_delay;
}else {
rotate_delay = rotate_delay-500;
document.forms["slideform"].delay.value = rotate_delay;
}
}
function moredelay() {
if (rotate_delay < 1000) {
rotate_delay = rotate_delay+100;
document.forms["slideform"].delay.value = rotate_delay;
}else {
rotate_delay = rotate_delay+500;
document.forms["slideform"].delay.value = rotate_delay;
}
}
function next() {
if (document.forms["slideform"].slide[current+1]) {
document.images.show.src = document.forms["slideform"].slide[current+1].value;
document.forms["slideform"].slide.selectedIndex = ++current;
}else first();
}
function previous() {
if (current-1 >= 0) {
document.images.show.src = document.forms["slideform"].slide[current-1].value;
document.forms["slideform"].slide.selectedIndex = --current;
}else last();
}
function first() {
current = 0;
document.images.show.src = document.forms["slideform"].slide[0].value;
document.forms["slideform"].slide.selectedIndex = 0;
}
function last() {
current = document.forms["slideform"].slide.length-1;
document.images.show.src = document.forms["slideform"].slide[current].value;
document.forms["slideform"].slide.selectedIndex = current;
}
function ap(text) {
document.forms["slideform"].slidebutton.value = (text == "Stop") ? "Auto" : "Stop";
rotate();
}
function change() {
current = document.forms["slideform"].slide.selectedIndex;
document.images.show.src = document.forms["slideform"].slide[current].value;
}
function rotate() {
if (document.forms["slideform"].slidebutton.value == "Stop") {
current = (current == document.forms["slideform"].slide.length-1) ? 0 : current+1;
document.images.show.src = document.forms["slideform"].slide[current].value;
document.forms["slideform"].slide.selectedIndex = current;
window.setTimeout("rotate()", rotate_delay);
}
}