node = LBAddNodeA( gadget, window, requester, node, tags )
struct Node *LBAddNodeA( struct Gadget *, struct Window *,
struct Requester *, struct Node *, struct TagItem * );
node = LBAddNode( gadget, window, requester, node, tag, ... )
struct Node *LBAddNode( struct Gadget *, sruct Window *,
struct Requester *, struct Node *, ULONG, ... );