ners
        resetHidingRefHint();
        link.removeEventListener("mouseleave", startHidingRefHint);
        link.removeEventListener("mouseenter", resetHidingRefHint);
        link.removeEventListener("blur", startHidingRefHint);
        link.removeEventListener("focus", resetHidingRefHint);
        refHint.removeEventListener("mouseleave", startHidingRefHint);
        refHint.removeEventListener("mouseenter", resetHidingRefHint);
        refHint.removeEventListener("blur", startHidingRefHint);
        r