dint get the above said function and still the logout not working donno why

function addonline($uid,$place,$plclink)
{
/////delete inactive users
$tm = time() ;
$timeout = $tm - 2493767; //time out = 5 minutes here is where u edit the time a session stays online
$deloff = mysql_query("DELETE FROM ibwf_online WHERE actvtime <'".$timeout."'");
$cloak = mysql_fetch_array(mysql_query("SELECT hidden FROM ibwf_users WHERE id = '".$uid."'"));
if($cloak[0]==1){
mysql_query("UPDATE ibwf_online SET hidden = 1 WHERE userid = $uid");
}else if($cloak[0]==0){
mysql_query("UPDATE ibwf_online SET hidden = 0 WHERE userid = $uid");
}
///now try to add user to online list and add total time online
$lastactive = mysql_fetch_array(mysql_query("SELECT lastact FROM ibwf_users WHERE id='".$uid."'"));
$tolsla = time() - $lastactive[0];
$totaltimeonline = mysql_fetch_array(mysql_query("SELECT tottimeonl FROM ibwf_users WHERE id='".$uid."'"));
$totaltimeonline = $totaltimeonline[0] + $tolsla;
$ttime = time();
$res = mysql_query("UPDATE ibwf_users SET lastact='".$ttime."' WHERE id='".$uid."'");
$res = mysql_query("UPDATE ibwf_users SET tottimeonl='".$totaltimeonline."' WHERE id='".$uid."'");
$res = mysql_query("INSERT INTO ibwf_online SET userid='".$uid."', actvtime='".$ttime."', place='".$place."', placedet='".$plclink."'");
if(!$res)
{
//most probably userid already in the online list
//so just update the place and time
$res = mysql_query("UPDATE ibwf_online SET actvtime='".$ttime."', place='".$place."', placedet='".$plclink."' WHERE userid='".$uid."'");
}
$maxmem=mysql_fetch_array(mysql_query("SELECT value FROM ibwf_settings WHERE id='2'"));
$result = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM ibwf_online"));
if($result[0]>=$maxmem[0])
{
$tnow = date("D d M Y - H:i", time());
mysql_query("UPDATE ibwf_settings set name='".$tnow."', value='".$result[0]."' WHERE id='2'");
}
$maxtoday = mysql_fetch_array(mysql_query("SELECT ppl FROM ibwf_mpot WHERE ddt='".date("d m y")."'"));
if($maxtoday[0]==0||$maxtoday=="")
{
mysql_query("INSERT INTO ibwf_mpot SET ddt='".date("d m y")."', ppl='1', dtm='".date("H:i:s")."'");
$maxtoday[0]=1;
}
if($result[0]>=$maxtoday[0])
{
mysql_query("UPDATE ibwf_mpot SET ppl='".$result[0]."', dtm='".date("H:i:s")."' WHERE ddt='".date("d m y")."'");
}
}
}
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