diff --git a/classes/Cache.class.php b/classes/Cache.class.php
index 6fe7b0e..ac46b8c 100644
--- a/classes/Cache.class.php
+++ b/classes/Cache.class.php
@@ -125,9 +125,9 @@ final class Cache
     */
     function clearOld()
     {
-        $file = CACHE_PATH.'/'.$this->infofile;
+        $file = CACHE_PATH . '/' . $this->infofile;
         if (!file_exists($file) || date('Ymd', filemtime($file)) != date('Ymd')) {
-            exec('find '.CACHE_PATH.'/ -mtime +1 -delete'); //не удаляет папки сохраняя структуру
+            exec('find ' . CACHE_PATH . '/ -type f -mtime +1 -delete'); //не удаляет папки сохраняя структуру
             touch($file);
         }
     }
diff --git a/classes/Format.class.php b/classes/Format.class.php
index 989ca01..d69a175 100644
--- a/classes/Format.class.php
+++ b/classes/Format.class.php
@@ -191,6 +191,28 @@ class Format
         }
         return '';
     }
+    
+    /**
+     * Байты в мегабайты
+     * @param int $bytes
+     * @return string
+     */
+    public static function bytes2MB($bytes)
+    {
+        $mb = number_format((int) $bytes / 1024 / 1024, 2, '.', '');
+        return preg_replace("/(\.?)0+$/", "", $mb) . 'МБ';
+    }
+    
+    /**
+     * Байты в килобайты
+     * @param int $bytes
+     * @return string
+     */
+    public static function bytes2KB($bytes)
+    {
+        $kb = number_format((int) $bytes / 1024, 2, '.', '');
+        return preg_replace("/(\.?)0+$/", "", $kb) . 'КБ';
+    }
 }
 
 /**