the original function was:
function wa_scrollToCartOnce() {
wa_ScrollToID("cart_wrapper");
if (document.getElementById("Shipping")) {
var shippingWrapper = document.getElementById("Shipping").parentNode;
wa_removeEvent(shippingWrapper, "transitionend", wa_scrollToCartOnce);
}
if (document.getElementById("Billing")) {
var billingWrapper = document.getElementById("Billing").parentNode;
wa_removeEvent(billingWrapper, "transitionend", wa_scrollToCartOnce);
}
}