--- a/OpenStreetMap.js
+++ b/OpenStreetMap.js
@@ -1,1 +1,165 @@
+/**
+ * Namespace: Util.OSM
+ */
+OpenLayers.Util.OSM = {};
 
+/**
+ * Constant: MISSING_TILE_URL
+ * {String} URL of image to display for missing tiles
+ */
+OpenLayers.Util.OSM.MISSING_TILE_URL = "/404.php";
+
+/**
+ * Property: originalOnImageLoadError
+ * {Function} Original onImageLoadError function.
+ */
+OpenLayers.Util.OSM.originalOnImageLoadError = OpenLayers.Util.onImageLoadError;
+
+/**
+ * Function: onImageLoadError
+ */
+OpenLayers.Util.onImageLoadError = function() {
+    if (this.src.match(/^http:\/\/[abc]\.[a-z]+\.openstreetmap\.org\//)) {
+        this.src = OpenLayers.Util.OSM.MISSING_TILE_URL;
+    } else if (this.src.match(/^http:\/\/[def]\.tah\.openstreetmap\.org\//)) {
+        // do nothing - this layer is transparent
+    } else {
+        OpenLayers.Util.OSM.originalOnImageLoadError;
+    }
+};
+
+/**
+ * Class: OpenLayers.Layer.OSM.Mapnik
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.OSM>
+ */
+OpenLayers.Layer.OSM.Mapnik = OpenLayers.Class(OpenLayers.Layer.OSM, {
+    /**
+     * Constructor: OpenLayers.Layer.OSM.Mapnik
+     *
+     * Parameters:
+     * name - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+        var url = [
+            "http://a.tiles.bigtincan.com/${z}/${x}/${y}.png",
+            "http://b.tiles.bigtincan.com/${z}/${x}/${y}.png",
+            "http://c.tiles.bigtincan.com/${z}/${x}/${y}.png"
+        ];
+        options = OpenLayers.Util.extend({ numZoomLevels: 19 }, options);
+        var newArguments = [name, url, options];
+        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM.Mapnik"
+});
+
+OpenLayers.Layer.OSM.NearMap = OpenLayers.Class(OpenLayers.Layer.OSM, {
+    /**
+     * Constructor: OpenLayers.Layer.OSM.Mapnik
+     *
+     * Parameters:
+     * name - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+        var url = [
+	    "http://nearmap:findreality@web0.nearmap.com/maps/hl=en&nml=Vert&x=${x}&y=${y}&z=${z}",
+	    "http://nearmap:findreality@web1.nearmap.com/maps/hl=en&nml=Vert&x=${x}&y=${y}&z=${z}",
+	    "http://nearmap:findreality@web2.nearmap.com/maps/hl=en&nml=Vert&x=${x}&y=${y}&z=${z}",
+	    "http://nearmap:findreality@web3.nearmap.com/maps/hl=en&nml=Vert&x=${x}&y=${y}&z=${z}"
+        ];
+        options = OpenLayers.Util.extend({ numZoomLevels: 22 }, options);
+        var newArguments = [name, url, options];
+        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM.NearMap"
+});
+
+/**
+ * Class: OpenLayers.Layer.OSM.Osmarender
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.OSM>
+ */
+OpenLayers.Layer.OSM.Osmarender = OpenLayers.Class(OpenLayers.Layer.OSM, {
+    /**
+     * Constructor: OpenLayers.Layer.OSM.Osmarender
+     *
+     * Parameters:
+     * name - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+        var url = [
+            "http://a.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png",
+            "http://b.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png",
+            "http://c.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png"
+        ];
+        options = OpenLayers.Util.extend({ numZoomLevels: 18 }, options);
+        var newArguments = [name, url, options];
+        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM.Osmarender"
+});
+
+/**
+ * Class: OpenLayers.Layer.OSM.CycleMap
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.OSM>
+ */
+OpenLayers.Layer.OSM.CycleMap = OpenLayers.Class(OpenLayers.Layer.OSM, {
+    /**
+     * Constructor: OpenLayers.Layer.OSM.CycleMap
+     *
+     * Parameters:
+     * name - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+        var url = [
+            "http://a.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png",
+            "http://b.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png",
+            "http://c.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png"
+        ];
+        options = OpenLayers.Util.extend({ numZoomLevels: 19 }, options);
+        var newArguments = [name, url, options];
+        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM.CycleMap"
+});
+
+/**
+ * Class: OpenLayers.Layer.OSM.Maplint
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.OSM>
+ */
+OpenLayers.Layer.OSM.Maplint = OpenLayers.Class(OpenLayers.Layer.OSM, {
+    /**
+     * Constructor: OpenLayers.Layer.OSM.Maplint
+     *
+     * Parameters:
+     * name - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+        var url = [
+            "http://d.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png",
+            "http://e.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png",
+            "http://f.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png"
+        ];
+        options = OpenLayers.Util.extend({ numZoomLevels: 18, isBaseLayer: false, visibility: false }, options);
+        var newArguments = [name, url, options];
+        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM.Maplint"
+});
+