rem: return this; 
add: return this; 
context:     reverse: function()     {        this.frames.reverse();        return this;            },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/8237a6359bebacf3e34f1134ef713c687c8e3edb/lib.js/clean/extension/content/firebug/lib.js