I am not quite sure of the significance of the following piece of code. It seems that it might cause the page to refresh automatically at some given interval. However, this is just a guess. How is this "Refresh" parameter used? Any other explanation is appreciated. I have done some googling/looked at documentation to no avail.

```
// I have some instance of HttpServletRepsonse named response
response.setHeader("Refresh","300");

```