rem: return obj.tagName && (obj.tagName.toUpperCase() == tag) && 
add: return obj.tagName && (obj.tagName.toUpperCase() == tag) && 
context:         function hasTagAndClass(obj, tag, cl)        {            return obj.tagName && (obj.tagName.toUpperCase() == tag) &&                 (obj.className == cl);        }
meta: 7863	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7863/ef415f98303bf4ec3fc92a62c203ddc80cf12536/md_script.js/buggy/main/metadata/md_script.js