rem: return ((getNodeIndex(elem) % pred) == idx); 
add: return (elem.parentNode[childNodesName][ncount-1] === elem); 
context: 				return function(elem){					return ((getNodeIndex(elem) % pred) == idx);				}
meta: 4497	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4497/20818d78af35454de0cfeffad05a9251a618bede/query.js/buggy/_base/query.js