Unique Chatters.js

{
        if (!window.hasOwnProperty('tppuniquechatters')) {

                        var liveCount = $("#live-count");
                        var uniqueChattersSpan = $("<span class=\"stat\" id=\"unique-count\" original-title=\"Unique Chatters\">~</span>");
                        uniqueChattersSpan.insertBefore(liveCount);

                        var usernames = {};
                        setInterval(function () {
                                $('#chat_line_list').find('.nick').each(function (i, e) {
                                        var name = $(e).text();
                                        usernames[name] = (usernames[name] || 0) + 1;
                                })
                        }, 500);

                        setInterval(function () {
                                $("#unique-count").text(Object.keys(usernames).length);
                        }, 1000);

                        window.tppuniquechatters = true;
        }
};
void(0);