in English language. /htdocs/blocktype/ tweety /lang/ xy .utf8/blocktype. tweety .php - (optional) the file, which contains translated strings of xy language, where xy is an ISO 639-1 language code. Contents 1 /htdocs/blocktype/tweety/thumb.png 2 /htdocs/blocktype/tweety/version.php 3 /htdocs/blocktype/tweety/lang/en.utf8/blocktype.tweety.php 4 /htdocs/blocktype/tweety/lang/sl.utf8/blocktype.tweety.php - optional, translation to Slovenian language 5 /htdocs/blocktype/tweety/lib.php 5.1 function single_only() 5.2 function get_title()