function exportCSV()
 {
     global $i18n, $ClassDir;
     require_once 'File/CSV.php';
     require_once $ClassDir . 'StringHelper.class.php';
     $header = array("name", "gender", "birthday", "mobile", "phone", "office_phone", "fax", "addrees", "category", "email", "homepage");
     $conf = array('fields' => count($header), 'sep' => ";", 'quote' => '"', 'header' => false, 'crlf' => "\r\n");
     $filename = date("Y_m_d") . "_contact_export.csv";
     $csv = new File_CSV();
     //		Write contact record
     $apf_contact = DB_DataObject::factory('ApfContact');
     $apf_contact->orderBy('id desc');
     $apf_contact->find();
     while ($apf_contact->fetch()) {
         $row_data = array();
         foreach ($header as $title) {
             $coloum_function = "get" . StringHelper::CamelCaseFromUnderscore($title);
             $row_data[] = $apf_contact->{$coloum_function}();
         }
         $csv->append($row_data, $conf);
     }
     $csv->send($filename);
     exit;
 }