rem: function mng_addrule (name, regex, className) 
add: function mng_addrule (name, regex, className, enable) 
context: function mng_addrule (name, regex, className){        this.entries[name] = new CMungerEntry (name, regex, className);    }
meta: 3298	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3298/e29bf1a03de5cc18d75f7a1db8b90a179a419732/munger.js/clean/xul/lib/munger.js