isset($this->columns[$showcol])) {
$this->sess->collapse[$showcol] = false;
- } else if (($hidecol = optional_param($this->request[TABLE_VAR_SHOW], '', PARAM_ALPHANUMEXT)) &&
+ } else if (($hidecol = optional_param($this->request[TABLE_VAR_HIDE], '', PARAM_ALPHANUMEXT)) &&
isset($this->columns[$hidecol])) {
$this->sess->collapse[$hidecol] = true;
if (array_key_exists($hidecol, $this->sess->sortby)) {