Wis. Stat. § 814.035
An award of statutory costs to the lessee and denial of costs to the lessor was, under s. 271.035 [now s. 814.035] (2) and (3), a matter within the trial court's discretion. Costs are purely discretionary when both parties recover on their respective claims in one action. Mid-Continent Refrigerator Co. v. Straka, 47 Wis. 2d 739, 178 N.W.2d 28 (1970). When judgment was ordered for a defendant in the plaintiff's action and also for the defendant on one of several counterclaims, costs were properly awarded to the defendant as to each. Arrowhead Growers Sales Co. v. Central Sands Produce, Inc., 48 Wis. 2d 383, 180 N.W.2d 567 (1970).