gistfile1.js

        Mobile.NavMain.init({
            pageId: function() {
                if (initType == TYPES.GROUPS) {
                    return Mobile.NavMain.PAGE_IDS.FEED;
                } else {
                    return Mobile.NavMain.PAGE_IDS.PROFILE_FEED;
                }
            }(),
            groupName: initGroupName,
            userId: initUserId
        });