public ActionResult ConfirmBorrow(int id)
{
Borrow b = new Borrow();
b.Book = id;
b.Borrower = Convert.ToInt32(Session["uid"]);
DateTime today = DateTime.Now;
b.Bdate = today;
b.Edate = today.AddDays(7);
b.Status = 0;
bservice.Insert(b);
Book bk = service.Get(id);
bk.Copy = bk.Copy - 1;
service.Update(bk);
return(RedirectToAction("Index"));
}