struct DVIADD {
	char *name;		/* name of the file */
	int	bod;		/* top of the content */
	int	lod;		/* length of the content */ 
	int	flag;		/* flag */
};

#define	AdID (('A'<<24)+('d'<<16)+('O'<<8)+140)

extern struct DVIADD *dviadd;
extern int	num_add;
extern int DVIOUT_Count;
extern int Current_DVI;
extern int Current_DVI_size;