diff --git a/lib/OpenLayers/Layer/XYZ.js b/lib/OpenLayers/Layer/XYZ.js
index 7977a3255f..43535dff79 100644
--- a/lib/OpenLayers/Layer/XYZ.js
+++ b/lib/OpenLayers/Layer/XYZ.js
@@ -70,24 +70,14 @@ OpenLayers.Layer.XYZ = OpenLayers.Class(OpenLayers.Layer.Grid, {
      * options - {Object} Hashtable of extra options to tag onto the layer
      */
     initialize: function(name, url, options) {
-        if (options && options.sphericalMercator || this.sphericalMercator) {
-            options = OpenLayers.Util.extend({
-                maxExtent: new OpenLayers.Bounds(
-                    -128 * 156543.03390625,
-                    -128 * 156543.03390625,
-                    128 * 156543.03390625,
-                    128 * 156543.03390625
-                ),
-                maxResolution: 156543.03390625,
-                numZoomLevels: 19,
-                units: "m",
-                projection: "EPSG:900913"
-            }, options);
+        options = options || {};
+        if (options.sphericalMercator || this.sphericalMercator) {
+            options.projection = new OpenLayers.Projection('EPSG:900913');
+            options.numZoomLevels = 19;
         }
-        url = url || this.url;
-        name = name || this.name;
-        var newArguments = [name, url, {}, options];
-        OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, [
+            name || this.name, url || this.url, {}, options
+        ]);
     },
     
     /**
@@ -157,10 +147,9 @@ OpenLayers.Layer.XYZ = OpenLayers.Class(OpenLayers.Layer.Grid, {
             OpenLayers.Util.indexOf(resolutions, res) :
             this.getServerZoom() + this.zoomOffset;
 
-        var limit = Math.pow(2, z);
-        if (this.wrapDateLine)
-        {
-           x = ((x % limit) + limit) % limit;
+        if (this.wrapDateLine) {
+            var limit = Math.pow(2, z);
+            x = ((x % limit) + limit) % limit;
         }
 
         return {'x': x, 'y': y, 'z': z};