rem: for (var i = 0; i < this.length; i++) newArray.push(this[i]); 
add: for (var i = 0; i < length; i++) newArray[i] = this[start++]; 
context: 	copy: function(){		var newArray = [];		for (var i = 0; i < this.length; i++) newArray.push(this[i]);		return newArray;	},
meta: 3891	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3891/03c9c00aa7fdb2f2d8571e7665048da8759cf30a/mootools-uncompressed.js/buggy/includes/js/mootools-uncompressed.js