function scrollLeft() {
    var element = document.getElementById("movingDiv");
    var currentLeft = parseInt(element.style.left);
    if (isNaN(currentLeft)) currentLeft = 0;
    currentLeft += 120;
    if (currentLeft > 0) currentLeft = 0;
    document.getElementById("movingDiv").style.left = currentLeft.toString() + "px";
}

function scrollRight() {
    var element = document.getElementById("movingDiv");
    var currentLeft = parseInt(element.style.left);
    if (isNaN(currentLeft)) currentLeft = 0;
    currentLeft -= 120;
    //var maxScroll = element.getElementsByTagName("img").length - 5;
    //if (currentLeft < -120 * maxScroll) currentLeft = -120 * maxScroll;
    if (currentLeft < -240) currentLeft = -240;
    document.getElementById("movingDiv").style.left = currentLeft.toString() + "px";
}

function showCar(id) {
    var nb = document.getElementById("movingDiv").getElementsByTagName("img").length;

    for (var i = 1; i <= nb; i++) {
        document.getElementById("fiche" + i.toString()).style.display = "none";
    }

    document.getElementById("fiche" + id.toString()).style.display = "";
}

function validateForm() {

    alert('je suis la');
    if (document.getElementById("nom").value == "") {
        alert("Vous devez mettre votre nom!");
        return false;
    }

    if (document.getElementById("telephone").value == "") {
        alert("Vous devez mettre votre téléphone!");
        return false;
    }

    return true;
}