rem: return this.mRules ? this.mRules.Count() : 0; 
add: return this.mRules ? this.mRules.Count() : this.mSheetRules ? this.mSheetRules.length : 0; 
context: function() {  return this.mRules ? this.mRules.Count() : 0;});
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a7c48464e3280bcd1d3585d7cc0bc61c943ad5a5/styleRules.js/clean/extensions/inspector/resources/content/viewers/styleRules/styleRules.js