_gaq.push(['_setCustomVar',
   1,             // This custom var is set to slot #1.  Required parameter.
   'User Type',   // The name of the custom variable.  Required parameter.
   'Member',      // Sets the value of "User Type" to "Member" or "Visitor" depending on status.  Required parameter.
   2              // Sets the scope to session-level.  Optional parameter.
]);

ga('create', 'UA-XXXXX-Y', 'auto');

ga('set', {
  dimension1: __isUserLoggedIn__,
});

ga('send', 'pageview');