
    Cherie L. WEDDEN and Robert Wedden, Appellants, v. Julie Ann WENTZ and Joseph Gene Wentz, Appellees.
    No. 89-03039.
    District Court of Appeal of Florida, Second District.
    July 13, 1990.
    Lisa A. Jayson and Steven C. Ruth, of L.D. Beltz & Associates, St. Petersburg, for appellants.
    Patricia D. Prouty of Price, Price & Prouty, Chartered, Bradenton, for appel-lees.
   PER CURIAM.

We affirm the jury verdict and resulting judgment of no actionable negligence on the part of the appellee/defendant below. A concurring cause instruction is not required where the only issue on the question of liability is the comparative negligence of the plaintiff and defendant, and no extraneous concurring cause is either alleged or proved.

SCHEB, A.C.J., and CAMPBELL and FRANK, JJ., concur.  