rem: this.request.onreadystatechange = this.onReadyStateChange; 
add: this.request.onreadystatechange = this.onReadyStateChange; 
context:     attach: function()    {        var spy = this;        this.onReadyStateChange = function(event) { onHTTPSpyReadyStateChange(spy, event); };        this.onLoad = function() { onHTTPSpyLoad(spy); };        this.onError = function() { onHTTPSpyError(spy); };        this.onreadystatechange = this.request.onreadystatechange;        this.request.onreadystatechange = this.onReadyStateChange;            this.request.addEventListener("load", this.onLoad, true);        this.request.addEventListener("error", this.onError, true);    },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/e1d42ad3fad63b72826a4e2ed0726866484c9ac3/spy.js/clean/extension/content/firebug/spy.js