rem: ff = agree(ff, function(elem){ return (elem.tagName.toLowerCase() == query.tag); }); 
add: return function(elem){ return (elem && elem.getAttribute && elem.hasAttribute(cond)); } 
context: 				ff = agree(ff, function(elem){					return (elem.tagName.toLowerCase() == query.tag);				});
meta: 4497	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4497/20818d78af35454de0cfeffad05a9251a618bede/query.js/buggy/_base/query.js