rem: this.initPrefs(); 
add: PrefUtils.addObserver("inspector", PrefChangeObserver); 
context:   initialize: function()  {    this.loadViewerRegistry();    this.installNavObserver();    this.initPrefs();    this.setFlashSelected(PrefUtils.getPref("inspector.blink.on"));  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/73c9a1111f3d6e085e25cfcd0d150659488f11a0/InspectorSidebar.js/clean/extensions/inspector/resources/content/sidebar/InspectorSidebar.js