Cookie questions

[Raymond Wan <suppressed>]

Hi all,

Sorry, but I'm not entirely sure if this is relevant to modperl...

I was wondering if it was possible to delete cookies.  I read that using 
Javascript, cookies can be deleted by setting it to a time in the past.  
I'm not sure how to do it in Mason, though.  I think I know how to get a 
cookie and also to set a new one and send it out.  But, I don't know how 
to get an old cookie, change it, and send it back.  Or even, get a 
cookie, *copy it*, send the copy back.  What is stopping the browser 
from creating a second cookie with the same name?

Also, I've seen various ways of setting cookies.  For example, one using 
APR::Request::Cookie and another using Apache2::Cookie.  Which should I 
use?  I'm setting a cookie by doing:

$r->err_headers_out->add ("Set-Cookie" => $cookie->as_string);

where $cookie is of type APR::Request::Cookie.  Is this strange?  (I 
forgot what I read to come up with this...most other documents mention a 
"bake" method...)

Ray