Emulating cookies

As WML doesn't seem to allow for cookies by standard,
I'm trying to find a way of emulating them.

My current idea is as follows:

Is there a way I can globally set a postfield for every
future <go> and <anchor> tags in the current card/deck
instead of having to type

<go href="file.php">
<postfield name="username" value="$(username)">
<postfield name="password" value="$(password)">
</go>

at every new link the user may click on? How do other
wap sites do this?

Thanks,

Marc

Hi,

I have created an m-commerce shopping site using Perl. I created a session on the server to simulate cookies and then passed the id variable through the pages.