// http://gisweb.azdeq.gov/arcgis/epanls/
// ADEQ: Arizona Department of Environmental Quality

// required packages
dojo.require("dojo.number");
dojo.require("esri.map");
dojo.require("esri.toolbars.draw");
dojo.require("esri.toolbars.navigation");
dojo.require("esri.tasks.query");
dojo.require("esri.tasks.geometry");

// constants
var _MetersPerMile = 1609.346849;
var _Perimeter = 1.5;

// ArcGIS server REST services
var host = location.host;
if (host.length == 0 || host.indexOf("localhost") == 0) host = "evgisdev";  // windows explorer or visual studio
var _mapURL      = "http://" + host + "/arcgis/rest/services/map/public/MapServer";
var _geometryURL = "http://" + host + "/arcgis/rest/services/Geometry/GeometryServer";
var _locatorURL  = "http://tasks.arcgisonline.com/ArcGIS/rest/services/Locators/TA_Address_NA/GeocodeServer";

// layer
var _layer = "Schools / Learning Sites";
var _field = "NAME";
var _field2 = "CLASS";

// map
var _map = null;
var _mapLayer = null;
var _extent = null;

// spatial reference
var _NAD_1983_UTM_Zone_12N = null;
var _WGS_1984 = null;

// input values
var _distance = 0;
var _latitude = 0;
var _longitude = 0;
var _location = null;

// geocoding
var _geocode = null;
var _address = "";
var _location = null;
var _minimumScore = 60;