--- a/labs/openlayers/lib/OpenLayers/Protocol/SOS.js
+++ b/labs/openlayers/lib/OpenLayers/Protocol/SOS.js
@@ -1,1 +1,34 @@
+/* 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/Protocol.js
+ */
+
+/**
+ * Function: OpenLayers.Protocol.SOS
+ * Used to create a versioned SOS protocol.  Default version is 1.0.0.
+ *
+ * Returns:
+ * {<OpenLayers.Protocol>} An SOS protocol for the given version.
+ */
+OpenLayers.Protocol.SOS = function(options) {
+    options = OpenLayers.Util.applyDefaults(
+        options, OpenLayers.Protocol.SOS.DEFAULTS
+    );
+    var cls = OpenLayers.Protocol.SOS["v"+options.version.replace(/\./g, "_")];
+    if(!cls) {
+        throw "Unsupported SOS version: " + options.version;
+    }
+    return new cls(options);
+};
+
+/**
+ * Constant: OpenLayers.Protocol.SOS.DEFAULTS
+ */
+OpenLayers.Protocol.SOS.DEFAULTS = {
+    "version": "1.0.0"
+};
+