//checks cookies to make sure they are logged in
if(isset($_COOKIE['ID_my_site']))
{
$username = $_COOKIE['ID_my_site'];
$pass = $_COOKIE['Key_my_site'];
$check = mysql_query("SELECT * FROM users WHERE username = '$username'")or die(mysql_error());
while($info = mysql_fetch_array( $check ))
{

//if the cookie has the wrong password, they are taken to the login page
if ($pass != $info['password'])
{ header("Location: login.php");
}

//otherwise they are shown the private page
else
{
echo "Private Page<p>";
echo "Seekret Stuff<p>";
echo "<a href=logout.php>Logout</a>";
}
}
}
else

//if the cookie does not exist, they are taken to the login screen
{
header("Location: login.php");
}
?>