[Zope] Mail Form: How to add attachments

I am a Zope newbie, who just made a mail form within Zope. In this mail form I have the following inputs: * To (recipient's email) * Subject: * From (sender's email) * Text I also have a "send" button, which sends the email. Everything works fine, but I would like to have the possibility to send emails with attachments from the mail form. The user should have the possibility to add these attachments to the email direct from his local PC. Does anyone have an easy solution? Saludos, Martin Sandberg --