reading PO attachments at runtime

Hi,

We have a customized PO layout using smartforms. While creating the PO, the buyers often add attachments to the PO. While printing the PO we would like to read the content of the attachements at runtime so that we can print the content of the attachments along with the PO.

How can we read the contents of the attachments at runtime so that we can print the attachment along with the PO?

Thanks,

Mick