rem: return ($type(el) == 'element'); 
add: return (el.nodeName && el.nodeType == 1); 
context: 			var children = Array.filter(parent.childNodes, function(el){				return ($type(el) == 'element');			});
meta: 5409	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5409/549ec3e26f3c682cc65f7a00decf603a24b0a2e0/Element.Filters.js/buggy/Element/Element.Filters.js