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: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/92b1e3b67c6c3ef1915d2a0e18c1fa7be21e200e/venkman-debugger.js/clean/extensions/venkman/resources/content/venkman-debugger.js