function bbs_subscribe_forum(mobile, forumID) {
    processAjax(false, 'get', '/pages/bbs/bbssubscribe.ajax.php', 'forum_id=' + forumID + '&subscribe=' + (flagForumSubscribed ? '0' : '1') + '&mobile=' + mobile, 'subscribe_img_ajax');
}
function bbs_subscribe_topic(mobile, topicID, initialSubscribed) {
    if (typeof bbs_subscribe_topic.topicSubscribed == 'undefined') bbs_subscribe_topic.topicSubscribed = [];
    if (typeof bbs_subscribe_topic.topicSubscribed[topicID] == 'undefined') bbs_subscribe_topic.topicSubscribed[topicID] = initialSubscribed;
    processAjax(false, 'get', '/pages/bbs/bbssubscribe.ajax.php', 'topic_id=' + topicID + '&subscribe=' + (bbs_subscribe_topic.topicSubscribed[topicID] ? '0' : '1') + '&mobile=' + mobile, 'subscribe_img_ajax');
}