add: if (aCommand == "cmdEditCopy") { return new cmdEditCopy(); } 
context:   getCommand: function(aCommand)  {    return null;  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/e997bb58841aae61443134d5c143e372b0ba7d72/computedStyle.js/clean/extensions/inspector/resources/content/viewers/computedStyle/computedStyle.js