;d prepare mom for the next document:
<br/>
<span class="pre-in-pp">
  .COLLATE
  .TITLE "New Doc Title"
  .AUTHOR "Josephine Blough"
</span>
Then, you&#8217;d redefine the header-centre string using the
reserved string <kbd><nobr>\*[$TITLE]</nobr></kbd>, like this:
<br/>
<span class="pre-in-pp">
  .HEADER_CENTER "\E*[$TITLE]"
</span>
And last, you&#8217;d do:
<br/>
<span class="pre-in-pp">
  .START
</span>
Voil√†!  Any argument you pass to
<a href="docprocessing.html#title">TITLE</a>
from here on in (s