Throwing settimeout error having invalid argument

 $("[price-refresh-button]").live("click", function (e) {

        e.preventDefault();
        var message = $(this).attr("ajax-message");
        var errorMessage = $(this).attr("ajax-error-message");
        var blocked = $("#ProductsContainer");

        $.ajax({
            url: $(this).attr("url"),
            type: "POST",
            context: $(this),
            beforeSend: function () {
                block(blocked, message);
            },
            success: function (correlationId) {
                setTimeout(Hudson.PriceRequest.Summary.PollPriceRefresh(correlationId, $(this).attr('polling-url'), function () {
                    Hudson.PriceRequest.Tabs.loadProductsAndDocuments();
                }), 2500);

            },
            error: function (xhr, textStatus, errorThrown) {

                reportActionErrorResult(errorMessage);
                $(blocked).unblock();
            }
        }); // End Ajax call

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Application breaking on Settime out method saying settimeout method having invalid argument