virtual PRInt32 operator()(void* anItem1,void* anItem2) {
virtual PRInt32 operator()(const void* anItem1, const void* anItem2) {
  virtual PRInt32 operator()(void* anItem1,void* anItem2) {    EntityNode* one = (EntityNode*)anItem1;    EntityNode* two = (EntityNode*)anItem2;    return nsCRT::strcmp(one->mStr, two->mStr);  }