elements = elements.concat(this.getElementsByTagName(tag.trim())); 
elements.extend(this.getElementsByTagName(tag.trim())); 
	getElements: function(tags, nocash){		tags = tags.split(',');		var elements = [];		var dupes = (tags.length > 1);		tags.each(function(tag){			elements = elements.concat(this.getElementsByTagName(tag.trim()));		}, this);		return (nocash) ? elements : new Elements(elements, (dupes) ? 'cash' : false);	}
6991	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6991/f67d2cfd8151d50a3aa3df00f8b5677b49b0ece3/Element.js/buggy/Source/Element/Element.js