Ubilling/modules/general/mailedit/index.php

<?php

if (cfr('EMAIL')) {

    if (isset($_GET['username'])) {
        $login = vf($_GET['username']);
        // change mail if need
        if (isset($_POST['newmail'])) {
            $mail = $_POST['newmail'];
            zb_UserChangeEmail($login, $mail);
            rcms_redirect("?module=mailedit&username=" . $login);
        }

        $current_mail = zb_UserGetEmail($login);
        $useraddress = zb_UserGetFullAddress($login) . ' (' . $login . ')';


// Edit form construct
        $fieldnames = array('fieldname1' => __('Current mail'), 'fieldname2' => __('New mail'));
        $fieldkey = 'newmail';
        $form = web_EditorStringDataForm($fieldnames, $fieldkey, $useraddress, $current_mail, 'email');
        $form.=web_UserControls($login);

        show_window(__('Edit mail'), $form);
    }
} else {
    show_error(__('You cant control this module'));
}
?>