diff --git a/src/viewer.js b/src/viewer.js
index 04073c46..3a7f7539 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -221,41 +221,11 @@ $.Viewer = function( options ) {
     $.ControlDock.call( this, options );
 
     //Deal with tile sources
-    var initialTileSource;
-
     if ( this.xmlPath  ){
         //Deprecated option.  Now it is preferred to use the tileSources option
         this.tileSources = [ this.xmlPath ];
     }
 
-    if ( this.tileSources  ){
-        // tileSources is a complex option...
-        //
-        // It can be a string, object, or an array of any of strings and objects.
-        // At this point we only care about if it is an Array or not.
-        //
-        if( $.isArray( this.tileSources ) ){
-
-            //must be a sequence of tileSource since the first item
-            //is a legacy tile source
-            if( this.tileSources.length > 1 ){
-                THIS[ this.hash ].sequenced = true;
-            }
-
-            //Keeps the initial page within bounds
-            if ( this.initialPage > this.tileSources.length - 1 ){
-                this.initialPage = this.tileSources.length - 1;
-            }
-
-            initialTileSource = this.tileSources[ this.initialPage ];
-
-            //Update the sequence (aka currrent page) property
-            THIS[ this.hash ].sequence = this.initialPage;
-        } else {
-            initialTileSource = this.tileSources;
-        }
-    }
-
     this.element              = this.element || document.getElementById( this.id );
     this.canvas               = $.makeNeutralElement( "div" );
     this.keyboardCommandArea  = $.makeNeutralElement( "textarea" );
@@ -540,8 +510,8 @@ $.Viewer = function( options ) {
     }
 
     // Open initial tilesources
-    if ( initialTileSource ) {
-        this.open( initialTileSource );
+    if ( this.tileSources ) {
+        this.open( this.tileSources );
 
         if ( this.tileSources.length > 1 ) {
             this._updateSequenceButtons( this.initialPage );
diff --git a/test/demo/collections/main.js b/test/demo/collections/main.js
index 9b5e0966..68920e03 100644
--- a/test/demo/collections/main.js
+++ b/test/demo/collections/main.js
@@ -6,15 +6,31 @@
         init: function() {
             var self = this;
 
+            var tileSources = [
+                {
+                    tileSource: "../../data/tall.dzi",
+                    x: 1.5,
+                    y: 0,
+                    width: 1
+                }, {
+                    tileSource: '../../data/wide.dzi',
+                    opacity: 1,
+                    x: 0,
+                    y: 1.5,
+                    height: 1
+                }
+            ];
+
             this.viewer = OpenSeadragon( {
                 // debugMode: true,
                 zoomPerScroll: 1.02,
                 showNavigator: true,
                 id: "contentDiv",
+                tileSources: tileSources,
                 prefixUrl: "../../../build/openseadragon/images/"
             } );
 
-            this.crossTest3();
+            // this.crossTest3();
         },
 
         // ----------