function __construct()
 {
     self::$website = GetConfig('ShopPath');
     $this->Last_modification = date("Y-m-d");
     //date("Y-m-d\TH:i:s").substr(date("O"),0,3).":".substr(date("O"),3);
     if (!is_dir(self::$sitemap_folder)) {
         mkdir(self::$sitemap_folder);
         chmod(self::$sitemap_folder, 0777);
     }
     $filename = self::$sitemap_index . '.xml';
     if (!file_exists($filename)) {
         file_put_contents($filename, '');
         /*
         				$fp=fopen($filename, "w+");
         				if(!is_writable($filename) ){
         				}
         				fclose($fp);*/
         chmod($filename, 0777);
     }
 }