public static function reflush($keys=null)
		{
			self::_cleanPrevious();

			if($keys)
			{
				if(!is_array($keys))
				{
					$keys = array($keys);
				}

				$keys = array_flip($keys);
			}

			foreach($_SESSION as $key => $value)
			{
				if(strpos($key,self::$_sessionKey)===0)
				{
					if($keys)
					{
						$k = str_replace(self::$_sessionKey,'',$key);
						if(isset($keys[$k]))
						{
							$_SESSION[$key][0] = 1;
						}
					}
					else
					{
						$_SESSION[$key][0] = 1;
					}
				}
			}
		}