<?php

require_once($_SERVER['DOCUMENT_ROOT']."/config.php");

if($_SESSION['id'] && $_GET['id']) {
    if (strpos($_GET['id'], "|") !== false) {
        $ids = explode("|", $_GET['id']);
        if (count($ids) > 0) {
            foreach ($ids as $id) {
                if ($_GET['st'] == 0) {
                    $mas = array();
                    foreach ($_SESSION['checked'] as $ts) {
                        if ($ts !== $id) {
                            $mas[] = $ts;
                        }
                    }
                    $_SESSION['checked'] = $mas;
                }

                if ($_GET['st'] == 1) {
                    $_SESSION['checked'][] = $id;
                }
            }
        }
    } else {
        if ($_GET['st'] == 0) {
            $mas = array();
            foreach ($_SESSION['checked'] as $ts) {
                if ($ts != $_GET['id']) {
                    $mas[] = $ts;
                }
            }
            $_SESSION['checked'] = $mas;
        }

        if ($_GET['st'] == 1) {
            $_SESSION['checked'][] = $_GET['id'];
        }
    }
}