Typoscript setup

config {
  simulateStaticDocuments = 0
  baseURL = www.sitename.sk
  tx_realurl_enable = 1
}

PHP

(typo3conf/localconf.php)

$TYPO3_CONF_VARS['EXTCONF']['realurl']['www.sitename.sk'] = array(

	'init' => array(
		'enableCHashCache' => '1',
		'appendMissingSlash' => 'ifNotFile,redirect',
		'adminJumpToBackend' => '1',
		'enableUrlDecodeCache' => '1',
		'enableUrlEncodeCache' => '1',
		'emptyUrlReturnValue' => '/',
	),

	'pagePath' => array(
		'type' => 'user',
		'userFunc' => 'EXT:realurl/class.tx_realurl_advanced.php:&tx_realurl_advanced->main',
		'spaceCharacter' => '-',
		'languageGetVar' => 'L',
		'rootpage_id' => '1',
	),

	'fileName' => array(
		'defaultToHTMLsuffixOnPrev' => 1,
		'index' => array(
			'index.html' => array(
				'keyValues' => array()
			),
			'print.html' => array(
				'keyValues' => array(
					'type' => 98
				)
			),
			'sitemap.xml' => array(
				'keyValues' => array(
					'type' => 200
				),
			),
		),
	),

	'preVars' => array (
		array(
			'GETvar' => 'L',
			'valueMap' => array(
				'sk' => '0',
				'en' => '1',
			),
			'noMatch' => 'bypass',
		),
	),
);