function changePic(step) {
document.images.slide.src=eval("image"+step+".src");    
}
function slideit(pause) {
var delai = pause * 1000;
    if (!document.images) {
    return;
    }
zonebg.style.background = "url(images/"+step+".jpg) top left";
$('#slide').fadeOut('slow');
setTimeout("changePic("+step+")",500);
$('#slide').fadeIn('slow');
    if (step<3) {
    step++;
    }
    else {
    step=1
    }
setTimeout("slideit("+pause+")",delai);
}

var image1=new Image()
var image2=new Image()
var image3=new Image()
//var image4=new Image()
image1.src="images/1.jpg";
image2.src="images/2.jpg";
image3.src="images/3.jpg";
//image4.src="images/4.jpg";
var step=1;
var zonebg = document.getElementById('photoaccueil');
slideit(5);