[Zope] dtml-var "sideway" + dot question

[Jordi Yeh]

Hi,

I am trying to add a file attachment stored in a LocalFS object using 
the following code

 <dtml-with intranet>
    <dtml-with gracie>
     <dtml-var file.pdf>
    </dtml-with>
  </dtml-with>

The above code works, but how can I do the same thing in one line?

<dtml-var expr="intranet.gracie.file.pdf"> does not work. Using other 
words, how can I treat the dot of the id?

TIA

Jordi