Suppress the output if in an Ajax request

libraries/server_links.inc.php

@@ -17,6 +17,7 @@ require_once './libraries/server_common.inc.php';
 
 PMA_checkParameters(array('is_superuser', 'url_query'), TRUE, FALSE);
 
+if (!$GLOBALS['is_ajax_request']) {
     /**
      * Counts amount of navigation tabs
      */
@@ -93,7 +94,7 @@ $tabs['synchronize']['text'] = __('Synchronize');
 
     echo PMA_generate_html_tabs($tabs, array());
     unset($tabs);
-
+} //end if(!$GLOBALS['is_ajax_request'])
 
 /**
  * Displays a message