public void updateOrderList(WebShopItem item, int quantity) {
		
		initOrderListIfNull();
		
		if (item == null || quantity <= 0 )
			return;
		
		for (WebShopItem itemInMyCart : myOrder) {
			if ( itemInMyCart.getItemID().equals(item.getItemID()) ) {
				itemInMyCart.setQuantity(quantity);
				break;
			}
		}
		
	} // end updateOrderList