It was set

$ _ session ['device'] = 'a';

I need dynamically when you click on the link, change the value. Does this make it in JS?

Answer 1, Authority 100%

If it helps, that is, it is in jQuery – jquery.session plugin
JavaScript does not have access to sessions, EMNIP of course. Maybe something changed …

Example with plugin:

// to Store
$ (Function () {
  $ .session.set ("MyVar", "Value");
});
// to Read.
$ (Function () {
  Alert ($ session.get ("MyVar"));
});

Answer 2, Authority 33%

sessionstorage ['detailpage'] = 'value';
Alert (SessionStorage ['Detailpage']);