for (var i = 0, j = this.length; i < j; i++) found.extend(this[i].getElementsByTagName(tagName)); 
for (var i = 0, j = this.length; i < j; i++) found.extend(this[i].getElementsByTagName(tag)); 
	getNestedByTag: function(tag, nocash){		var found = [];		for (var i = 0, j = this.length; i < j; i++) found.extend(this[i].getElementsByTagName(tagName));		return (nocash) ? found : $$.unique(found);	}
6991	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6991/65a9f70d359930b4cfdd505d1447cd6f11210b7e/Element.Selectors.js/clean/Element/Element.Selectors.js