I don't know how to save the last position in cookies. Even the table movable, it will back to its original position when you refresh the page.
Okay ;D Nothing to worried about that. Just one more question. Well it's complicated to explain. I mean if you can make a thing that when we refresh it don't refresh.
^ Not possible - if you're talking about users pressing the refresh button in their browser.
Repositioning these things can be a bit tricky or fiddly to get right anyway.