[TYPO3-english] question about codes in ext_localconf.php

[tom]

Hi,

Below code is from ext_localconf.php, I know it is configuration of
$TYPO3_CONF_VARS, but I had hard time to understand the meaning of some
lines, can anyone explain the meaning of the lines in bold below? thanks.

<?php
if (!defined('TYPO3_MODE')) die ('Access denied.');
require_once(t3lib_extMgm::extPath('newsletter',
'hooks/class.tx_newsletter_uuser.php'));
*$TYPO3_CONF_VARS['SC_OPTIONS']['u_user/pi1/class.tx_uuser_pi1.php'][15] =
'tx_newsletter_uuser';*
*t3lib_extMgm::addPItoST43($_EXTKEY, 'pi1/class.tx_newsletter_pi1.php',
'_pi1', 'list_type', 1);*
*$GLOBALS['TYPO3_CONF_VARS']['FE']['eID_include']['tx_newsletter_ajax'] =
'EXT:newsletter/class.tx_newsletter_ajax.php';*
*$TYPO3_CONF_VARS['SC_OPTIONS']['GLOBAL']['cliKeys']['newsletter'] =
array('EXT:newsletter/cli/cli_newsletter.php', '_CLI_jc');*
?>

Tom