Listen(window,'load',Load);

function Load()
{
   var headerHeight = elemById('header').offsetHeight;
   var contendAndMenu = elemById('contentandmenu')
   var windowHeight = measure('window').y;

   if (windowHeight > elemById('contentandmenu').offsetHeight + headerHeight)
   {
      contendAndMenu.style.height =  windowHeight - headerHeight  + 'px';
   }



   try
   { 
      var kwalDiv = elemById('kwal_div');
       // alert(elemById('kwal_div').offsetHeight); // 527

      if (windowHeight < parseInt(elemById('contentandmenu').offsetHeight + headerHeight)) {
         kwalDiv.style.height = windowHeight - headerHeight - 158 + 'px';
      }
   }
   catch (e)
   {
      // dont crash, this above is only used for the cug kenniscentrum page.
   }
// cheating, but it works.. ;)
   if (windowHeight > elemById('contentandmenu').offsetHeight + headerHeight)
   {
      contendAndMenu.style.height =  windowHeight - headerHeight  + 'px';
   }
}