use JSON Object on Meteor.Session

client.js

/* getter/setter limit for page */
var getLimit = function (page) {
  try {
    pageLimit = JSON.parse(Session.get('limit'))[page];
    pageLimit = pageLimit ? pageLimit : DEFAULT_PAGE_LIMIT;
    return pageLimit;
  } catch (e) {
    return DEFAULT_PAGE_LIMIT;
  }
}

var setLimit = function (page, limit) {
  try {
    pageLimit = JSON.parse(Session.get('limit'));
  } catch (e) {
    p = {};
    p[page] = limit;
    Session.set('limit', JSON.stringify(p));
  }
}