var ACCESS_MODIFIER_SHARED = "1";           
var ACCESS_MODIFIER_AIRPORT = "2";           
var ACCESS_MODIFIER_GAS = "3";           
var ACCESS_MODIFIER_TRAIN = "4";           
var ACCESS_MODIFIER_COFFEE = "5";           
var ACCESS_MODIFIER_HOTEL = "6";           
var ACCESS_MODIFIER_OTHER = "14";           

var IMG_SHARED  = "./img/wifi_free.png";
var IMG_AIRPORT = "./img/wifi_airport.png";
var IMG_GAS     = "./img/wifi_petrol_station.png";
var IMG_HOTEL   = "./img/wifi_hotel.png";
var IMG_COFFEE  = "./img/wifi_coffee.png";
var IMG_TRAIN   = "./img/wifi_trainstation.png";
var IMG_OTHER   = "./img/wifi_other.png";
 
var IMG_SHARED_L  = "./img/wifi_free_large.png";
var IMG_AIRPORT_L = "./img/wifi_airport_large.png";
var IMG_GAS_L     = "./img/wifi_petrol_station_large.png";
var IMG_HOTEL_L   = "./img/wifi_hotel_large.png";
var IMG_COFFEE_L  = "./img/wifi_coffee_large.png";
var IMG_TRAIN_L   = "./img/wifi_trainstation_large.png";
var IMG_OTHER_L   = "./img/wifi_other_large.png";

//the relative path to these scripts (do not move them from the "php" directory)
var EXEC_QUERY_SCRIPT_URL = "./php/execQuery.php";
var AP_PICTURES_URL = "./php/getPicture.php";

//the coordinates of the center of the map the first time is loaded
var FIRST_LOAD_CENTER_LATITUDE = 30;   
var FIRST_LOAD_CENTER_LONGITUDE = -20;

//the zoom level when the map is loaded for the first time
var FIRST_LOAD_ZOOM_LEVEL = 2;

//the zoom level at which the access points appear on map
var AP_DISPLAY_ZOOM_LEVEL = 6; //6
var AP_HIGHEST_ZOOM_LEVEL = 16;
var AP_DISPLAY = 6; //10 
var COUNTRY_ZOOM_LEVEL = 6;
var CITY_ZIP_ZOOM_LEVEL = 15;

var ERROR_NOT_FOUND = "Sorry, location not found...";

var MAX_ACCESS_POINTS_DISPLAYED = 500;