WP, Qtranslate: How to Get Current Language Code by Using qTranslate Plugin of WordPress
if (qtrans_getLanguage()=='en') {
// put your code here if the current language code is 'en' (English)
} elseif (qtrans_getLanguage()=='id') {
// put your code here if the current language code is 'id' (Indonesian)
}
// From http://www.openscriptsolution.com/cms/wordpress/how-to-get-current-language-code-by-using-qtranslate-plugin-of-wordpress/