exports.index = function(req, res){
   show(res, 'index');
 };

 exports.reset = function(req, res) {
   db.del('open', 'checkedIn');
   res.render('reset', par());
 }

 function show(res, tpl, err, code) {
  stats(function(free, open, ckd) {
   res.render(tpl, par(free, open, ckd, err, code));
  });
 }

 function par(free, open, ckd, err, code) {
   return {"code": code, "err": err, "free": free, "open": open, "ckd": ckd};
 }