+ struct TreeInfo **node_top; /* topmost node in tree */
+ struct TreeInfo *node_parent; /* parent level directory info */
+ struct TreeInfo *node_group; /* level group sub-directory info */
+ struct TreeInfo *next; /* next level series structure node */
+
+ int cl_first; /* internal control field for setup screen */
+ int cl_cursor; /* internal control field for setup screen */
+
+ int type; /* type of tree content */
+
+ /* fields for "type == TREE_TYPE_LEVEL_DIR" */
+