mod/friend_request/views/default/friend_request/topbar.php

<?php
    /**
     * Friend request plugin
     * Extend the Elgg topbar with link to Friends request, if any
     *
     * @package friend_request
     * @author ColdTrick IT Solutions
     * @copyright Coldtrick IT Solutions 2009
     * @link http://www.coldtrick.com/
     * @version 2.0
     */

    if(isloggedin()){
        $user = get_loggedin_user();

        $count = elgg_get_entities_from_relationship(array(
            'relationship'=>'friendrequest',
            'relationship_guid' =>$user->guid,
            'inverse_relationship'=>true
            );

        if(!empty($count)){
            echo "<a href='" . $CONFIG->wwwroot . "pg/friend_request' class='new_friendrequests' title='" . elgg_echo('friend_request:new') . "'>[" . $count . "]</a>";
        }
    }
?>