screen pid in hardstatus

Screen Users,

Something that comes up for me from time to time is I want to attach to 
currently running screen from elsewhere. The problem at this point is to 
determine the pid of that session, since I am always running several 
screens at once.

What would be ideal it seems to be is to add the pid of the current 
screen session to my harstatus line, so I could just with a glance get 
that pid for attaching purposes.

However from my perusal of the docs, it doesn't seem like the pid is one 
of the supported variables.

Is there a way for me to do this?

Thanks,

-Todd
This e-mail message and any attachments contain information that is confidential and may be privileged.  If the reader of this e-mail is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited.  If you have received this communication in error, please immediately notify us by replying to this message or by sending an email to postmaster-5HQwtzS045uJ1ku80POtVQC/[email protected], and destroy all copies of this message and any attachments without reading or disclosing them.  Thank you.