HP

<?php
$TYPO3_CONF_VARS['EXTCONF']['realurl'] = array(
    'www.domain.dk' => array(
        'init' => array(
            'enableCHashCache' => '1',
            'enableUrlDecodeCache' => '1',
            'enableUrlEncodeCache' => '1',
            'appendMissingSlash' => 'ifNotFile',
        ),
        'fileName' => array('defaultToHTMLsuffixOnPrev' => '0'),
        'preVars' => array(
            0 => array(
                'GETvar' => 'L',
                'valueMap' => array(
            'dk' => '0', // The important part
                    'sv' => '1',
                    'no' => '2',

                ),
                'noMatch' => 'bypass',
            ),
        ),


...