rem: Date.prototype.getDay=function() {return d.getUTCDay();} 
add: window.Date.prototype.getDay=function() {return d.getUTCDay();} 
context:     Date.prototype.getDay=function() {return d.getUTCDay();}
meta: 3444	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3444/c2513fa317a4be7f1fd1a468d779ff7ce73806d2/jshooks.js/buggy/src/chrome/content/jshooks.js