rem: tab.setAttribute("label", this.properNick); 
add: tab.setAttribute("label", this.unicodeName); 
context: function my_unick (e){    if (userIsMe(e.user))    {        this.parent.parent.updateHeader();        updateTitle();    }    else if ("messages" in this && this.messages)    {        this.display(getMsg(MSG_NEWNICK_NOTYOU, [e.oldNick, e.user.properNick]),                     "NICK", e.user, this);    }    this.updateHeader();    var tab = getTabForObject(this);    if (tab)        tab.setAttribute("label", this.properNick);}
meta: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/c6101b49aef97cf47069c333c0e54bcdd4a66616/handlers.js/buggy/xul/content/handlers.js