rem: event.preventDefault = function() { this.returnValue = false; }; 
add: preventDefault: function(){ if (this.event.preventDefault) this.event.preventDefault(); else this.event.returnValue = false; return this; } 
context: 				event.preventDefault = function() {					this.returnValue = false;				};
meta: 6317	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6317/af33b9b4b200ec7a74d5cc817c40b151988c7d6d/Event.js/clean/Native/Event.js