LISTINGS
function init() {
        myMap = new esri.Map("mapDiv");

        myTiledMapServiceLayer = new
esri.layers.ArcGISTiledMapServiceLayer
("http://server.arcgisonline.com/ArcGIS/rest/services/Esri_StreetMap_World_2D/MapServer");
        myMap.addLayer(myTiledMapServiceLayer);

{
LISTING 1: Find line 13 and add the code shown in bold onto your clipboard




function init() {
        myMap = new esri.Map("mapDiv");

        myTiledMapServiceLayer = new
esri.layers.ArcGISTiledMapServiceLayer
("http://server.arcgisonline.com/ArcGIS/rest/services/Esri_StreetMap_World_2D/MapServer");

        myMap.addLayer(myTiledMapServiceLayer);

myTiledMapServiceLayer = new
esri.layers.ArcGISTiledMapServiceLayer
("http://server.arcgisonline.com/ArcGIS/rest/services/Esri_StreetMap_World_2D/MapServer");
        myMap.addLayer(myTiledMapServiceLayer);

{
LISTING 2: Paste another copy of the code as shown in bold




function init() {
        myMap = new esri.Map("mapDiv");

        myTiledMapServiceLayer = new
esri.layers.ArcGISTiledMapServiceLayer
("http://server.arcgisonline.com/ArcGIS/rest/services/Esri_StreetMap_World_2D/MapServer");

        myMap.addLayer(myTiledMapServiceLayer);

var Portland = new 
esri.layers.ArcGISTiledMapServiceLayer
("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Portland/Portland_Esri_Neighborhoods_AGO/MapServer");
myMap.addLayer(Portland);
}
LISTING 3: Code after adding the URL for Portland_Esri_Neighborhoods_AGO Service URL