rem: return new Iterator(this); 
add: return new Log4js.Iterator(this); 
context: 	iterator: function (){		return new Iterator(this);		},
meta: 2141	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2141/1262bdbcf021afe53e2127f4792d5bb0f6115094/log4js.js/buggy/src/js/log4js.js