Drag & Drop Divs & Save the changes in db.

 I'm supposed to drag/drop/redorder 5 divs (i.e., arranging them ascending/descending/side-by-side).

Firstly, DIV-1 is not at all taking the new position apart from being just dragged.

Secondly, How to rearrange these divs.

Finally, save the changes and open in the same manner on next login.