+/* Screen functions */
+void screen_init(void);
+void screen_draw(void);
+int screen_run(int);
+
+/* View init functions */
+void day_init(void);
+void week_init(void);
+void month_init(void);
+void year_init(void);
+void todo_init(void);
+void notes_init(void);
+void settings_init(void);
+void help_init(void);
+
+/* View draw functions */
+void day_draw(void);
+void week_draw(void);
+void month_draw(void);
+void year_draw(void);
+void todo_draw(void);
+void notes_draw(void);
+void settings_draw(void);
+void help_draw(void);
+
+/* View run functions */
+int day_run(int);
+int week_run(int);
+int month_run(int);
+int year_run(int);
+int todo_run(int);
+int notes_run(int);
+int settings_run(int);
+int help_run(int);