rem: this.nick = nick.toLowerCase(); 
add: this.nick = this.parent.toLowerCase(nick); 
context: function usr_changenick (nick){    this.properNick = nick;    this.nick = nick.toLowerCase();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/1510f752280b7d41b574be8389ac766381968b15/irc.js/buggy/extensions/irc/js/lib/irc.js