rem: return $(this.cloneNode(contents || true)); 
add: var el = this.cloneNode(contents !== false); return $(el); 
context: 	clone: function(contents){		return $(this.cloneNode(contents || true));	},
meta: 3891	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3891/03c9c00aa7fdb2f2d8571e7665048da8759cf30a/mootools-uncompressed.js/buggy/includes/js/mootools-uncompressed.js