rem: get flasher() 
add: get selectedNode() 
context:   get flasher()  {    if (!("mFlasher" in this)) {      this.mFlasher = new Flasher(PrefUtils.getPref("inspector.blink.border-color"),                                   PrefUtils.getPref("inspector.blink.border-width"),                                   PrefUtils.getPref("inspector.blink.duration"),                                   PrefUtils.getPref("inspector.blink.speed"));    }        return this.mFlasher;  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a7c48464e3280bcd1d3585d7cc0bc61c943ad5a5/dom.js/clean/extensions/inspector/resources/content/viewers/dom/dom.js