29 void DrawOrderString(
const Vehicle *v, 
const Order *order, 
int order_index, 
int y, 
bool selected, 
bool timetable, 
int left, 
int middle, 
int right);
 
   31 #define MIN_SERVINT_PERCENT  5 
   32 #define MAX_SERVINT_PERCENT 90 
   33 #define MIN_SERVINT_DAYS    30 
   34 #define MAX_SERVINT_DAYS   800