// 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('leftColumn');
  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('centerColumnContent');
  var lHeight = xHeight('leftColumnContent');
  var rHeight = xHeight('rightColumnContent');

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

  // Assign maximum height to all columns
  xHeight('leftColumn', maxHeight);
  xHeight('centerColumn', maxHeight);
  xHeight('rightColumn', maxHeight);

  // Show the footer
	//xGetElementById('footer').style.top=maxHeight+145;
	xTop('footer', maxHeight+155);
  xShow('footer');
}
// xTop, Copyright 2001-2005 Michael Foster (Cross-Browser.com)
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL

function xTop(e, iY)
{
  if(!(e=xGetElementById(e))) return 0;
  var css=xDef(e.style);
  if(css && xStr(e.style.top)) {
    if(xNum(iY)) e.style.top=iY+'px';
    else {
      iY=parseInt(e.style.top);
      if(isNaN(iY)) iY=0;
    }
  }
  else if(css && xDef(e.style.pixelTop)) {
    if(xNum(iY)) e.style.pixelTop=iY;
    else iY=e.style.pixelTop;
  }
  return iY;
}