You need to:(1) Define another global variable called "bookmarks2". For example: var map, bookmarks, bookmarks2;
(2) Create this bookmarks2 object and set its properties. Bind it to dojo.byId('bookmarks2').bookmarks2 = new esri.dijit.Bookmarks({
map: map,
bookmarks: bookmarks2
}, dojo.byId('bookmarks2'));
Here is the whole revised code for your reference:<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>Bookmark Widget - Read-only Bookmarks</title>
<link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/2.6/js/dojo/dijit/themes/nihilo/nihilo.css">
<link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/2.6/js/esri/dijit/css/bookmarks.css">
<style type="text/css">
html, body {
height: 100%; width: 100%;
margin: 0; padding: 0;
}
body{
background-color: #fff; overflow:hidden;
font-family: sans-serif;
}
#header {
padding-top: 4px;
padding-left: 15px;
background-color:#444;
color:#fff;
font-size:16pt;
text-align: left;
font-weight:bold;
height:55px;
}
#subheader {
font-size:small;
color: #cfcfcf;
text-align:left;
padding-left:20px;
}
#bookmarks-wrapper {
position: absolute;
z-index: 40;
top: 15px;
right: 30px;
background: transparent;
font-size: 12pt;
color: #444;
}
#bookmarks-wrapper2 {
position: absolute;
z-index: 40;
top: 15px;
right: 150px;
background: transparent;
font-size: 12pt;
color: #444;
}
.ds { background: #000; overflow: hidden; position: absolute; z-index: 2; }
#ds-h div { width: 100%; }
#ds-l div { height: 100%; }
#ds .o1 { filter: alpha(opacity=10); opacity: .1; }
#ds .o2 { filter: alpha(opacity=8); opacity: .08; }
#ds .o3 { filter: alpha(opacity=6); opacity: .06; }
#ds .o4 { filter: alpha(opacity=4); opacity: .04; }
#ds .o5 { filter: alpha(opacity=2); opacity: .02; }
#ds .h1 { height: 1px; }
#ds .h2 { height: 2px; }
#ds .h3 { height: 3px; }
#ds .h4 { height: 4px; }
#ds .h5 { height: 5px; }
</style>
<script>var dojoConfig = { parseOnLoad: true };</script>
<script src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=2.6"></script>
<script>
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.ContentPane");
dojo.require("dijit.form.DropDownButton");
dojo.require("esri.map");
dojo.require("esri.dijit.Bookmarks");
dojo.require("dijit.form.Button");
dojo.require("dijit.Dialog");
dojo.require("dijit.form.TextBox");
var map, bookmarks, bookmarks2;
function init() {
var initialExtent = new esri.geometry.Extent({"xmin":-15949444,"ymin":2286770,"xmax":-6507942,"ymax":7374419,"spatialReference":
{"wkid":102100}});
map = new esri.Map("map", {
extent: initialExtent
});
// Resize the map when the browser resizes
dojo.connect(map, 'onLoad', function() {
dojo.connect(dijit.byId('map'), 'resize', map, map.resize);
});
var url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer";
var tiledLayer = new esri.layers.ArcGISTiledMapServiceLayer(url);
map.addLayer(tiledLayer);
// Bookmarks can be specified as an array of objects with the structure:
// { extent: <esri.geometry.Extent>, name: <some string> }
var bookmarks = [{
"extent": {
"spatialReference": {
"wkid": 102100
},
"xmin":-14201669,
"ymin":4642975,
"xmax":-13021482,
"ymax":5278931
},
"name": "Northern California"
}, {
"extent": {
"spatialReference": {
"wkid":102100
},
"xmin":-8669334,
"ymin":4982379,
"xmax":-8664724,
"ymax":4984864
},
"name": "Central Pennsylvania"
}];
// Bookmarks can be specified as an array of objects with the structure:
// { extent: <esri.geometry.Extent>, name: <some string> }
var bookmarks2 = [{
"extent": {
"spatialReference": {
"wkid": 102100
},
"xmin":-14201669,
"ymin":4642975,
"xmax":-13021482,
"ymax":5278931
},
"name": "Northern California"
}, {
"extent": {
"spatialReference": {
"wkid":102100
},
"xmin":-8669334,
"ymin":4982379,
"xmax":-8664724,
"ymax":4984864
},
"name": "Central Pennsylvania"
}];
// Create the bookmark widget
bookmarks = new esri.dijit.Bookmarks({
map: map,
bookmarks: bookmarks
}, dojo.byId('bookmarks'));
bookmarks2 = new esri.dijit.Bookmarks({
map: map,
bookmarks: bookmarks2
}, dojo.byId('bookmarks2'));
}
//show map on load
dojo.ready(init);
</script>
</head>
<body class="nihilo">
<div id="mainWindow"
data-dojo-type="dijit.layout.BorderContainer"
data-dojo-props="design:'headline',gutters:false"
style="width: 100%; height: 100%; margin: 0;">
<div id="header"
data-dojo-type="dijit.layout.ContentPane"
data-dojo-props="region:'top'">
Bookmark Widget Sample
<div id="subheader">Read-only bookmarks</div>
<div id="bookmarks-wrapper">
<div data-dojo-type="dijit.form.DropDownButton">
<span>Bookmarks</span>
<div data-dojo-type="dijit.TooltipDialog">
<div id="bookmarks"></div>
</div>
</div>
</div>
<div id="bookmarks-wrapper2">
<div data-dojo-type="dijit.form.DropDownButton">
<span>Bookmarks2</span>
<div data-dojo-type="dijit.TooltipDialog">
<div id="bookmarks2"></div>
</div>
</div>
</div>
</div>
<div id="map" class="shadow"
data-dojo-type="dijit.layout.ContentPane"
data-dojo-props="region:'center'">
<div id="ds"> <!-- drop shadow divs -->
<div id="ds-h">
<div class="ds h1 o1"></div>
<div class="ds h2 o2"></div>
<div class="ds h3 o3"></div>
<div class="ds h4 o4"></div>
<div class="ds h5 o5"></div>
</div>
</div> <!-- end drop shadow divs -->
</div>
</div>
</body>
</html>