extern void grabkeys(void); /* grab all keys defined in config.h */
/* layout.c */
-extern void focusnext(const char *arg); /* focuses next visible client, arg is ignored */
-extern void focusprev(const char *arg); /* focuses previous visible client, arg is ignored */
+extern void focusclient(const char *arg); /* focuses next(1)/previous(-1) visible client */
extern void incmasterw(const char *arg); /* increments the master width with arg's index value */
extern void incnmaster(const char *arg); /* increments nmaster with arg's index value */
extern void initlayouts(void); /* initialize layout array */