// by Paul@YellowPencil.com and Scott@YellowPencil.com
// feel free to delete all comments except for the above credit

function setTall() {
	if (document.getElementById) {
		// the divs array contains references to each column's div element.  
		// Replace 'center' 'right' and 'left' with your own.  
		// Or remove the last one entirely if you've got 2 columns.  Or add another if you've got 4!
//		var divs = new Array(document.getElementById('content'), document.getElementById('right_col'), document.getElementById('left_col'));
			var divs = new Array('primary_content_wrapper', 'secondary_content_wrapper', 'sidebar_content_wrapper_a', 'home');
		
		// Let's determine the maximum height out of all columns specified
		var maxHeight = 0;
		for (var i = 0; i < divs.length; i++) {
		   if (document.getElementById(divs[i])) {
			  var div = document.getElementById(divs[i]);
				if (div.offsetHeight > maxHeight) maxHeight = div.offsetHeight;
			 }
		
		}
		// Let's set all columns to that maximum height
		for (var i = 0; i < divs.length; i++) {
			 if (document.getElementById(divs[i])) {
  			var div = document.getElementById(divs[i]);
  			div.style.height = maxHeight + 'px';
  
  			// Now, if the browser's in standards-compliant mode, the height property
  			// sets the height excluding padding, so we figure the padding out by subtracting the
  			// old maxHeight from the new offsetHeight, and compensate!  So it works in Safari AND in IE 5.x
  			if (div.offsetHeight > maxHeight) {
  				div.style.height = (maxHeight - (div.offsetHeight - maxHeight)) + 'px';
  			}
			 }
		}
	}
}

window.onload = function() {
	setTall();
}

window.onresize = function() {
	setTall();
}