rem: if (req.data.memberlevel == null) 
add: if (res.data.memberlevel == null) { 
context: MemberMgr.prototype.membership_macro = function(param) {   if (req.data.memberlevel == null)      return;   res.write(getRole(req.data.memberlevel));   return;};
meta: 993	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/993/e9a7800a87905f590201a6af0beb752a4e65a080/MemberMgr.js/buggy/code/MemberMgr/MemberMgr.js