extern const char *tags[];
extern char stext[1024];
-extern int tsel, screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
+extern int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
extern unsigned int ntags;
extern void (*handler[LASTEvent])(XEvent *);
extern void (*arrange)(Arg *);
extern Atom wmatom[WMLast], netatom[NetLast];
-extern Bool running, issel;
+extern Bool running, issel, *tsel;
extern Client *clients, *sel;
extern Cursor cursor[CurLast];
extern DC dc;
extern void dofloat(Arg *arg);
extern void dotile(Arg *arg);
extern void initrregs();
+extern Bool isvisible(Client *c);
extern Client *getnext(Client *c);
extern Client *getprev(Client *c);
extern void replacetag(Arg *arg);