--- a/labs/openlayers/lib/OpenLayers/Control/ZoomIn.js
+++ b/labs/openlayers/lib/OpenLayers/Control/ZoomIn.js
@@ -1,1 +1,36 @@
+/* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for 
+ * full list of contributors). Published under the Clear BSD license.  
+ * See http://svn.openlayers.org/trunk/openlayers/license.txt for the
+ * full text of the license. */
 
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.ZoomIn
+ * The ZoomIn control is a button to increase the zoom level of a map.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.ZoomIn = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * Property: type
+     * {String} The type of <OpenLayers.Control> -- When added to a 
+     *     <Control.Panel>, 'type' is used by the panel to determine how to 
+     *     handle our events.
+     */
+    type: OpenLayers.Control.TYPE_BUTTON,
+    
+    /**
+     * Method: trigger
+     */
+    trigger: function(){
+        this.map.zoomIn();
+    },
+
+    CLASS_NAME: "OpenLayers.Control.ZoomIn"
+});
+