rem: return console.frames[console._currentFrameIndex]; 
add: if ("frames" in console) return console.frames[console._currentFrameIndex];  return null; 
context: function getCurrentFrame(){    return console.frames[console._currentFrameIndex];}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/c253059afafb09ee6b27e3767bb1e487e050ba0f/venkman-debugger.js/buggy/extensions/venkman/resources/content/venkman-debugger.js