GETPOST($paramname, $check='alphanohtml', $method=0, $filter=null, $options=null, $noreplace=0)
Return value of a param into GET or POST supervariable.
if(!defined( 'NOREQUIREMENU')) if(!empty(GETPOST('seteventmessages', 'alpha'))) if(!function_exists("llxHeader")) top_httphead($contenttype='text/html', $forcenocache=0)
Show HTTP header.