--- json_server.module	2008-01-13 16:12:23.000000000 +0000
+++ json_server_sg.module	2009-03-01 06:47:43.000000000 +0000
@@ -17,7 +17,14 @@
     return "JSON server accepts POST requests only.";
   }
   
-  $request = $_POST['method'];
+  if ($_POST['method']) {
+    $request = $_POST['method'];
+  } else if ($_POST['_method']) {
+    $request = $_POST['_method'];
+  } else {
+    return drupal_to_js(array("status" => FALSE, "data" => "No method given"));
+  }
+
   $methods = services_get_all();
   $args = array();
   foreach ($methods as $method) {