Affirmed on authority of Morrison v. Morrison, Fla.App.1960, 122 So.2d 199, 201, wherein the court states: “It is settled principle of law in this state that a court of equity possesses no power to go back and grant a new right, or impose a new duty not adjudicated in its former decree after it has become final and absolute.” See also McEachin v. McEachin, Fla.App.1963, 154 So.2d 894.