// Hide object with given id.
function id_hide(id) {
    obj = document.getElementById(id);
    obj.style.display = 'none';
    return true;
}

// Show object with given id.
function id_show(id) {
    obj = document.getElementById(id);
    obj.style.display = 'block';
    return true;
}

// Dont allow customer to buy less than minimum quantity.
function checkMinQuantity(obj) {
    if(obj.value < obj.title) {
        alert("Du kan ikke købe mindre end " + obj.title);
        obj.value = obj.title;
        return false;
    }

    return true;
}

// Submit order.
function buyProduct(f, id, cPath, add) {
    obj = document.getElementById('product' + id);
    addToRequest = '&';
    if (add != '') {
        addToRequest = '&' + add;
    }

    window.location = f+"?cPath=" + cPath + addToRequest + "sort=2a&action=buy_now&products_id=" + id + "&quantity=" + obj.value;

    return true;
}

function sbm(q) {
    if (document.getElementById(q))
        document.getElementById(q).submit();
    else
        document.forms[q].submit();
}