Add Member to all sites w/ upgrade

Hello, I have added some code to the functions.php file in our themes database which allows me to customize the upgrade email sent to members. We have a multi-site network with a few sub-sites, all represented by a single website (aspel.org). Is there a code I can use so that when I upgrade a member in our directory site, they are automatically added/upgraded to one of our other sites? Any and all help is much appreciated.

Cheers,
Jon

Also, I would like to auto-generate a password in the upgrade email. This is the current code I’m using. It is without a password generator. Is there a way to do this?

function user_role_update( $user_id, $new_role ) {
if ($new_role == “s2member_level1”) {
$site_url = get_bloginfo(‘wpurl’);
$user_info = get_userdata( $user_id );
$to = $user_info->user_email;
$subject = “ASPEL Membership Approved”;
$message = “Hello ” .$user_info->display_name . “, Congratulations! Your ASPEL Membership has been approved.

Du ” .$user_info->password . ” ” .$user_info->username . ” kan nå logge inn på medlemssiden og lese medlemsblader, laste ned høydepunkter, delta i konkurranser og så videre.

Medlemspakken med det første medlemsbladet, plakat og medlemskort blir sendt ut i september. De to andre bladene blir gitt ut i desember og mai.

Med vennlig hilsen
NewUtd-teamet”;

}
}
add_action( ‘set_user_role’, ‘user_role_update’, 10, 2);
?>

and yes, I know some of the message is in English and some in another language. I’m worried about the coding…

Thanks for your help in advanced.