CDML tag - cookie question

[Orcrist]

I'm trying to post data into a FMP DB from a web browser, using the url method (as opposed to the form method.

I manage to create a new record; however, when I try to put into a single field the contentes of a cookie, It writes to the field the code for getting the info I want.

Here's the code (I use JavaScript):

<script>

window.location = "FMPRO?-db=databasegoeshere&-format=responsepage.html-&nameoffield=[FMP-Cookie:nameofcookiegoeshere]&-New"

</script>

As I mentioned above, the content of the field nameoffield gets set to [FMP-Cookie:nameofcookiegoeshere], and not the content of that cookie.

Can anybody clarify me about what am I doing wrong? Thx in advance

J