return NULL;
return nsnull;
cookie_CheckForPrevCookie(char * path, char * hostname, char * name) {  cookie_CookieStruct * cookie_s;  if (cookie_list == nsnull) {    return NULL;  }    PRInt32 count = cookie_list->Count();  for (PRInt32 i = 0; i < count; ++i) {    cookie_s = NS_STATIC_CAST(cookie_CookieStruct*, cookie_list->ElementAt(i));    NS_ASSERTION(cookie_s, "corrupt cookie list");    if(path && hostname && cookie_s->path && cookie_s->host && cookie_s->name      && !PL_strcmp(name, cookie_s->name) && !PL_strcmp(path, cookie_s->path)      && !PL_strcasecmp(hostname, cookie_s->host)) {      return(cookie_s);    }  }  return(NULL);}