Capicom and token

[sstam]

Hello Friends!

I ´m with trouble!
I am using the CApicom for sign forms in my web page, using Certificate A3.
when I sign the first form, the aplication ask for the Pin Number of the token, but when I sign a new form in the same session the Pin is not asked.

How can I do to make the sign method to ask the Pin all the times?

Thanks,

Sorry by the English.