socket.on('nick', function (nick) {
        if (nick.oldnick == mynick) mynick = nick.newnick;
        for (var channel in nick.channels) {
            var verifExist = '#' + nick.oldnick + '-' + nick.channels[channel].substring(1);
            if ($(verifExist).length) {
                $('#' + nick.oldnick + '-' + nick.channels[channel].substring(1)).remove();
                $('#' + nick.channels[channel].substring(1) + '-channel').append('<div class="unmessage">' + nick.oldnick + ' vient de changer son pseudonyme en ' + nick.newnick + '</div>');
                $('#' + nick.channels[channel].substring(1) + '-nicklist').append('<option id="' + nick.newnick + '-' + nick.channels[channel].substring(1) + '">' + nick.newnick + '</option>');
                sortNickList('#' + nick.channels[channel].substring(1) + '-nicklist');
            }
        }
        scrollTopMessage();
    });