How to show new PM's on all index.php pages?

[n1ckn4me]

I want to have read how many new pm's the loggedin has on the index.php pages.

does it have to do with this following code?

PHP Code:

// ###################### Start pm update counters #######################
// update the pm counters for $vbulletin->userinfo
function build_pm_counters()
{
    global $vbulletin;

    $pmcount = $vbulletin->db->query_first("
        SELECT
            COUNT(pmid) AS pmtotal,
            SUM(IF(messageread = 0 AND folderid = 0, 1, 0)) AS pmunread
        FROM " . TABLE_PREFIX . "pm AS pm
        WHERE pm.userid = " . $vbulletin->userinfo['userid'] . "
    ");

    $pmcount['pmtotal'] = intval($pmcount['pmtotal']);
    $pmcount['pmunread'] = intval($pmcount['pmunread']);

    if ($vbulletin->userinfo['pmtotal'] != $pmcount['pmtotal'] OR $vbulletin->userinfo['pmunread'] != $pmcount['pmunread'])
    {
        // init user data manager
        $userdata =& datamanager_init('User', $vbulletin, ERRTYPE_STANDARD);
        $userdata->set_existing($vbulletin->userinfo);
        $userdata->set('pmtotal', $pmcount['pmtotal']);
        $userdata->set('pmunread', $pmcount['pmunread']);
        $userdata->save();
    }
} 


if not..how do I get it done...(maybe plugin?)
and I have found the following template code:

PHP Code:

$vbphrase[unread_x_nav_compiled] 


Is this one nessesary to call the new pm's?


thanks in advance!