Hello Dr. Sun

For the display of previous and next month, I pass the values through parameters. So if I click on previous or next month and then I refresh the page, it automatically  goes previous or next month as many time as I refresh that page. I think "refresh" counts as new request  and for that reason I get that thing.

So is it fine or I have to work on that to stop automatic decrease or increase in month on "refresh" ?

Thank You.