rem: emptyFunction: function() {}, 
add: emptyFunction: function() { }, 
context:   emptyFunction: function() {},
meta: 7608	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7608/d556a0875c83645645bd2067594241546d26d052/prototype.js/buggy/web/js/prototype.js