$(document).ready(function()
{
    var APIKey = <?php echo json_encode($store_settings->apiKey); ?>;
    var Password = <?php echo json_encode($store_serttings->apiPassword); ?>;
    var StoreId = <?php echo json_encode($store_settings->storeID); ?>;
    var ReceiptNumber = <?php echo json_encode($inv->reference_no); ?>;
    var ReceiptValue = <?php echo json_encode($inv->total); ?>;

    var Receipt = {
            "APIKey": APIKey,
            "Password": Password,
            "StoreId": StoreId,
            "ReceiptNumber": ReceiptNumber,
            "ReceiptValue": ReceiptValue
    };

    PostReceipt(Receipt, false);
});

function PostReceipt(receipt, isRetry)
{
    $.ajax({
        type: "post",
        url: "http://api.url/api/Receipt",
        data: { receipt },
        success: function(data)
        {
            setTimeout("location.href = 'index.php?module=pos';",2500);
        },
        error: function(xhr, status,data)
        {
            // Only retry the post once.
            // If it errors a second time, the customer will be informed elsewhere
            if (isRetry)
            {
                return;
            }
            else
            {
                PostReceipt(receipt, true);
            }
        }
    });
}