rem: if (url) this.url = url; 
add: this.url = url; 
context: 	setURL: function(url){		if (url) this.url = url;		return this;	},
meta: 7826	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7826/0fac81ca79ea08dd16758d48048090949dcf3dac/XHR.js/buggy/Source/Remote/XHR.js