extern void (*handler[LASTEvent])(XEvent *);
extern void (*arrange)(Arg *);
extern Atom wmatom[WMLast], netatom[NetLast];
-extern Bool running, issel, *tsel;
+extern Bool running, issel, *seltag;
extern Client *clients, *sel;
extern Cursor cursor[CurLast];
extern DC dc;
extern void settags(Client *c);
extern void togglemode(Arg *arg);
extern void view(Arg *arg);
+extern void viewextend(Arg *arg);
extern void viewnext(Arg *arg);
extern void viewprev(Arg *arg);