The refrigerator has a cooling compartment (13) with two temperature zones and distributed openings (161) distributed between a cooling air passage (16) and the cooling compartment. A movable diaphragm element is arranged behind opening or openings so as to partially blocked by the movement of stop elements (152, 162). A part of the opening or openings is partially opened by the movement of another part of the opening or openings. The temperature zones are separated by trays (131) in the cooling compartment. An independent claim is also included for a method for controlling temperature in two zones of a cooling compartment of a refrigerator.