function adjustLayout()
{
  // Get natural heights
  var lHeight = xHeight("leftcol");
  var rHeight = xHeight("rightcol");

  // Find the maximum height
  var maxHeight =
    Math.max(lHeight, rHeight);

  // Assign maximum height to all columns
  xHeight("leftcol", maxHeight);
  xHeight("rightcol", maxHeight);

  // Show the footer
  xShow("footer");
}

window.onload = function()
{
  xAddEventListener(window, "resize", adjustLayout, false);
  adjustLayout();
}