rem: return !this.transport.status || (this.transport.status >= 200 && this.transport.status < 300); 
add: var status = this.getStatus(); return !status || (status >= 200 && status < 300); 
context:   success: function() {    return !this.transport.status        || (this.transport.status >= 200 && this.transport.status < 300);  },
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/prototype.js/buggy/typo3/contrib/prototype/prototype.js