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: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/96fae7ea9632fc00f98652a7b028c05739d863e8/irc.js/clean/js/lib/irc.js