rem: return ((getNodeIndex(elem) % pred) == idx); 
add: return (elem.parentNode.childNodes[ncount-1] === elem); 
context: 					return function(elem){						return ((getNodeIndex(elem) % pred) == idx);					}
meta: 4497	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4497/09579b395fb7218b2d302700cecdf103de080ba6/query.js/buggy/_base/query.js