[Typo3] Including field information from parent/root page

[Jeremy Wells]

I have a section on a page template as so:

lib.nav_2 = COBJ_ARRAY
lib.nav_2.1 = TEXT
lib.nav_2.1.value = {page:title}
lib.nav_2.1.insertData = 1
lib.nav_2.1.wrap = <div id="menuheader">|</div>

lib.nav_2.5 = HMENU
lib.nav_2.5.entryLevel = 1
lib.nav_2.5.1 = TMENU
lib.nav_2.5.1 {
  wrap = <ul>|</ul>
  NO {
    allWrap = <li>|</li>
  }

  ACT < .NO
  ACT.doNotLinkIt = 1
  ACT.allWrap = <li class="active">|</li>
}

and this displays the current page title on the page followed by a menu, 
but I don't want the page title, I want the title of the parent page. 
How can i get that data?