diff --git a/reference/yar/yar_concurrent_client/call.xml b/reference/yar/yar_concurrent_client/call.xml
index 3bf47291bc..7b8378a0be 100644
--- a/reference/yar/yar_concurrent_client/call.xml
+++ b/reference/yar/yar_concurrent_client/call.xml
@@ -85,10 +85,12 @@ function error_callback($type, $error, $callinfo) {
 Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback");
 Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"));   // if the callback is not specificed, 
                                                                                // callback in loop will be used
-Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", array(YAR_OPT_PACKAGER => "json"));
+Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", NULL, array(YAR_OPT_PACKAGER => "json"));
                                                                                //this server accept json packager
-Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", array(YAR_OPT_TIMEOUT=>1));
+Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", NULL, array(YAR_OPT_TIMEOUT=>1));
                                                                                //custom timeout 
+
+//The requests are not sent yet
 ?>
 ]]>
    </programlisting>
@@ -105,6 +107,8 @@ Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters
   &reftitle.seealso;
   <simplelist>
    <member><methodname>Yar_Concurrent_Client::loop</methodname></member>
+   <member><methodname>Yar_Server::__construct</methodname></member>
+   <member><methodname>Yar_Server::handle</methodname></member>
   </simplelist>
  </refsect1>
 
diff --git a/reference/yar/yar_concurrent_client/loop.xml b/reference/yar/yar_concurrent_client/loop.xml
index 96aca6106d..b5ed52add1 100644
--- a/reference/yar/yar_concurrent_client/loop.xml
+++ b/reference/yar/yar_concurrent_client/loop.xml
@@ -64,9 +64,10 @@
 <?php
 function callback($retval, $callinfo) {
      if ($callinfo == NULL) {
-        echo "Now, all requests are sent, and no any response available";
+        echo "Now, all requests are sent, and no any response available\n";
      } else {
-        echo "This is a remote call response, the method name is", $callinfo["method"];
+		      echo "This is a remote call response, the method name is", $callinfo["method"], 
+			          ". calling sequence is " , $callinfo["sequence"] , "\n";
         var_dump($retval);
      }
 } 
@@ -78,9 +79,9 @@ function error_callback($type, $error, $callinfo) {
 Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback");
 Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"));   // if the callback is not specificed, 
                                                                                // callback in loop will be used
-Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", array(YAR_OPT_PACKAGER => "json"));
+Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", NULL, array(YAR_OPT_PACKAGER => "json"));
                                                                                //this server accept json packager
-Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", array(YAR_OPT_TIMEOUT=>1));
+Yar_Concurrent_Client::call("http://host/api/", "some_method", array("parameters"), "callback", NULL, array(YAR_OPT_TIMEOUT=>1));
                                                                                //custom timeout 
 
 Yar_Concurrent_Client::loop("callback", "error_callback"); //send the requests, 
@@ -91,6 +92,15 @@ Yar_Concurrent_Client::loop("callback", "error_callback"); //send the requests,
    &example.outputs.similar;
    <screen>
 <![CDATA[
+Now, all requests are sent, and no any response available
+This is a remote call response, the method name issome_method. calling sequence is 4
+string(11) "some_method"
+This is a remote call response, the method name issome_method. calling sequence is 1
+string(11) "some_method"
+This is a remote call response, the method name issome_method. calling sequence is 2
+string(11) "some_method"
+This is a remote call response, the method name issome_method. calling sequence is 3
+string(11) "some_method"
 ]]>
    </screen>
   </example>
@@ -101,6 +111,8 @@ Yar_Concurrent_Client::loop("callback", "error_callback"); //send the requests,
   &reftitle.seealso;
   <simplelist>
    <member><methodname>Yar_Concurrent_Client::call</methodname></member>
+   <member><methodname>Yar_Server::__construct</methodname></member>
+   <member><methodname>Yar_Server::handle</methodname></member>
   </simplelist>
  </refsect1>
 
diff --git a/reference/yar/yar_server/construct.xml b/reference/yar/yar_server/construct.xml
index 40fee10ff6..d0c4352489 100644
--- a/reference/yar/yar_server/construct.xml
+++ b/reference/yar/yar_server/construct.xml
@@ -55,6 +55,7 @@ class API {
      * @return
      */
     public function some_method($parameter, $option = "foo") {
+         return "some_method";
     }
 
     protected function client_can_not_see() {