diff --git a/lib/OpenLayers/Layer/MapGuide.js b/lib/OpenLayers/Layer/MapGuide.js
index 24325a1336..7846f9534d 100644
--- a/lib/OpenLayers/Layer/MapGuide.js
+++ b/lib/OpenLayers/Layer/MapGuide.js
@@ -116,6 +116,12 @@ OpenLayers.Layer.MapGuide = OpenLayers.Class(OpenLayers.Layer.Grid, {
      **/
     defaultSize: new OpenLayers.Size(300,300),
 
+    /** 
+     * Property: tileOriginCorner
+     * {String} MapGuide tile server uses top-left as tile origin
+     **/
+    tileOriginCorner: "tl",
+
     /**
      * Constructor: OpenLayers.Layer.MapGuide
      * Create a new Mapguide layer, either tiled or untiled.  
diff --git a/lib/OpenLayers/Layer/Zoomify.js b/lib/OpenLayers/Layer/Zoomify.js
index aef827c520..5b2940500c 100644
--- a/lib/OpenLayers/Layer/Zoomify.js
+++ b/lib/OpenLayers/Layer/Zoomify.js
@@ -45,6 +45,12 @@ OpenLayers.Layer.Zoomify = OpenLayers.Class(OpenLayers.Layer.Grid, {
      */
     standardTileSize: 256,
 
+    /** 
+     * Property: tileOriginCorner
+     * {String} This layer uses top-left as tile origin
+     **/
+    tileOriginCorner: "tl",
+
     /**
      * Property: numberOfTiers
      * {Integer} Depth of the Zoomify pyramid, number of tiers (zoom levels)