// layout3.js
// Cross-Browser.com & SitePoint.com - Equal Column Height Demo (3 Column)

if (document.getElementById || document.all) { // minimum dhtml support required
  document.write("<"+"style type='text/css'>#footer{visibility:hidden;}<"+"/style>");
  window.onload = winOnLoad;
}
function winOnLoad()
{
  var ele = xGetElementById('left');
  if (ele && xDef(ele.style, ele.offsetHeight)) { // another compatibility check
    adjustLayout();
    xAddEventListener(window, 'resize', winOnResize, false);
  }
}
function winOnResize()
{
  adjustLayout();
}
function adjustLayout()
{
  // Get content heights
  var cHeight = xHeight('content');
  var lHeight = xHeight('left');
  var rHeight = xHeight('right');
  var hHeight = xHeight('header');

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

  // Assign maximum height to all columns
  xHeight('left', maxHeight);
  xHeight('column', maxHeight);
  xHeight('right', maxHeight);
  xTop('footer', maxHeight+hHeight);
  xTop('pageinfo', maxHeight+hHeight-35);
  xTop('pageinfobasic', maxHeight+hHeight+102);


  // Show the footer
  xShow('footer');
  xShow('pageinfo');
  xShow('pageinfobasic');
}