rem: function() {return new XMLHttpRequest()}, 
add: this.prototype._each.call(object, function(pair) { var value = Object.toJSON(pair.value); if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value); }); 
context:       function() {return new XMLHttpRequest()},
meta: 7608	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7608/d556a0875c83645645bd2067594241546d26d052/prototype.js/buggy/web/js/prototype.js