function changePicture(imgName, imgSrc) {
    document[imgName].src = imgSrc;
}
function updateItem(formulier) {
    formulier.submit();
}
function deleteItem(formulier) {
    formulier.aantal.selectedIndex = 0;
    formulier.submit();
}
function toggleWrapper(objId) {
    var obj = document.getElementById(objId);
    if(obj) {
        if(obj.style.display == "") {
            obj.style.display = "none";
        }
        else {
            obj.style.display = "";
        }
    }
}
function submitLogoutForm() {
    document.logoutForm.submit();
}
function clearText(field){
    if (field.defaultValue == field.value) {
        field.value = '';
    }
    else if (field.value == '') {
        field.value = field.defaultValue;
    }
}
function submitDeliveryAddress(formulier, forward) {
    formulier.noforward.value = forward;
    formulier.submit();
}
function bookmark(bookmarktitel) {
    if(bookmarktitel == '' || bookmarktitel == undefined) {
        bookmarktitel = document.title;
    }
    var bookmarklink = document.location.href;

    if(document.all) {
        //MSIE
        window.external.AddFavorite(bookmarklink, bookmarktitel);
    }
    else {
        // firefox
        window.sidebar.addPanel(bookmarktitel, bookmarklink,"");
    }
}