if(!empty($event_id)) // if the event id is provided
                {//see if the user is logged in(now here is the big problem,
                   if a user loggs in with the plugin it has no efect over this code
                   so this if is always false when user visits for the first time)
                    if($facebook->getUser())
                    {
                        $uid = $facebook->getUser();

                        if(!empty($_REQUEST['action'])){

                                $success = $facebook->api('/'.$event_id.'/attending', 'POST');
                                if(!$success)
                                {echo "Oops something went wrong try again!";}
                                //else echo "<p>You are attending this event!</p>";
                                }
                        $fql ="{ 'attending_event':'SELECT rsvp_status FROM event_member WHERE uid =".$uid." AND eid = ".$event_id."'}";
                        $a_setup  =   array(
                                'method'    => 'fql.multiquery',
                                'queries'     => $fql,
                                'callback'  => ''
                                );
                        $a_result = $facebook->api($a_setup);
                        if($a_result[0]['fql_result_set'][0]['rsvp_status'] == 'attending' )
                        {
                            echo "<a href='#' class='zocial facebook'>You're attending this event!</a>";

                        }
                        else
                            echo '</br><form name"location" action="" method="POST">
                                <input type="submit" class="zocial facebook"  value="Attend" /><input type="hidden" name="action" value="Attend" />
                                </form>';

                    }
                    else
                    {
                     $params = array(
                        'scope' => 'rsvp_event',

                        );
                        $loginUrl = $facebook->getLoginUrl($params);

                        echo "<div class='zocial facebook'>You must <a href=".$loginUrl.">log in with facebook</a> to attend</div>";
                    }
                }
                // /attend button