Each web page is assembled by Web::Scaffold as follows:
  <html>
  <head>
  <title> [from page title or heading] </title>
  [optional] Default.meta or Page.meta
  internally generated style statements 
  [optional] Default.head or Page.head  
  </head>
  <body> 
  [optional] Default.top or Page.top
  [optional] menu bar as specified for this Page
  internally generated column spec for this Page
  {    column 1    }{    column 2    }....{ column N }
   Page.c1 or blank  Page.c2 or blank ... etc...
  [optional] trailer
  </body>
  </html>