rem: this.prefService.savePrefFile(null); 
context: function pm_reset(prefName){    this.prefRecords[prefName].realValue = null;    this.prefBranch.clearUserPref(prefName);    this.prefService.savePrefFile(null);}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/fa3a6bff6f0c023f9cd12f0f4579ea571052f03b/pref-manager.js/buggy/extensions/irc/js/lib/pref-manager.js