rem: YAHOO.widget.SliderThumb.prototype.onChange = function (x, y) { }; 
add: onChange: function (x, y) { } 
context: YAHOO.widget.SliderThumb.prototype.onChange = function (x, y) { };
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/slider-debug.js/buggy/www/resources/yui/slider/slider-debug.js