Accessing Source XML in Frameset (e.g. publish date)

This is for "For Web" publishing (see screenshot below).

I started with the default frameset found in C:\Program Files\PTC\Arbortext Editor\framesets\default (as pictured below).

As a test, I just threw in a "<xsl:value-of select='//date'/>" which did not work (pictured below).

Does anyone know how I can pass data from the source XML file to the frameset?

I know I can retrieve the publish date on the client side using JavaScript, but I would like to limit the client side processing as much as possible.

Thanks,

-James