Destroying Cookies

Hi,
Is there any way to completely destroy a specific cookie where not even the cookie name remains?

What I have is an asp process that lets our field technicians close service calls over a wireless web. (SprintPCS with Samsung I300 phones.) The asp writes wml instead of html.
There are up to 15 pieces of info that needs to be kept throughout the closing process. I keep these in session variables. The value of these depends on the user input or values returned from a query.
When the tech is done with one call, he is asked if he wants to close another. I do a Session.Abandon to completly remove the session variables and new ones are created.
I also set 3 cookies that are needed for every call closed by that tech.
When there's a signal loss, the session variables are destroyed but the cookies remain in the phone's browser memory.

I'd like to use cookies to store the info for each call so if the signal is lost, the data already entered isn't. But I'll need to remove the call specific cookies after each service call.

This would need to be done through asp as there is no scripting language available for wml here in the U.S.A.

Thanks,
Al.