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private function tlt($str) {
		$translit=array("А"=>"a","Б"=>"b","В"=>"v","Г"=>"g","Д"=>"d","Е"=>"e","Ё"=>"e","Ж"=>"zh","З"=>"z","И"=>"i","Й"=>"y","К"=>"k","Л"=>"l","М"=>"m","Н"=>"n","О"=>"o","П"=>"p","Р"=>"r","С"=>"s","Т"=>"t","У"=>"u","Ф"=>"f","Х"=>"h","Ц"=>"ts","Ч"=>"ch","Ш"=>"sh","Щ"=>"shch","Ъ"=>"","Ы"=>"y","Ь"=>"","Э"=>"e","Ю"=>"yu","Я"=>"ya","а"=>"a","б"=>"b","в"=>"v","г"=>"g","д"=>"d","е"=>"e","ё"=>"e","ж"=>"zh","з"=>"z","и"=>"i","й"=>"y","к"=>"k","л"=>"l","м"=>"m","н"=>"n","о"=>"o","п"=>"p","р"=>"r","с"=>"s","т"=>"t","у"=>"u","ф"=>"f","х"=>"h","ц"=>"ts","ч"=>"ch","ш"=>"sh","щ"=>"shch","ъ"=>"","ы"=>"y","ь"=>"","э"=>"e","ю"=>"yu","я"=>"ya","A"=>"a","B"=>"b","C"=>"c","D"=>"d","E"=>"e","F"=>"f","G"=>"g","H"=>"h","I"=>"i","J"=>"j","K"=>"k","L"=>"l","M"=>"m","N"=>"n","O"=>"o","P"=>"p","Q"=>"q","R"=>"r","S"=>"s","T"=>"t","U"=>"u","V"=>"v","W"=>"w","X"=>"x","Y"=>"y","Z"=>"z");
		$result=strtr($str,$translit);
		$result=preg_replace("/[^a-zA-Z0-9_\.]/i","-",$result);
		$result=preg_replace("/\-+/i","-",$result);
		$result=preg_replace("/(^\-)|(\-$)/i","",$result);
		return $result;
}