Changing a cookie value

Hi,

I haven't been able to figure out how to change the value of a cookie in my 
environment.

When my cgi is executed there are already a couple of cookie values in the 
environment. In certain instances I need to change one of them. I have code 
that looks like this right now:

    const CgiEnvironment& env = cgi.getEnvironment();

    vector<HTTPCookie> cookies = env.getCookieList();
    vector<HTTPCookie>::iterator itr;
    HTTPCookie cookie;
    for (itr = cookies.begin(); itr != cookies.end(); itr++) {
      if (itr->getName() == CALLING_URL_COOKIE)
	cookie = *itr;
    } // end for (itr...
    cookie.setValue(strNewValue);
    cout << HTTPHTMLHeader().setCookie(cookie) << endl;

But it when it outputs the new header info there are now two calling URL 
cookies, one with the old value and one with the new one.

Is there a way for me to delete the original cookie from the environment, or 
preferably modify it?

Thanks, Derek



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