function initHeight(){
	var _col1 = document.getElementById('content');
	var _col2 = document.getElementById('sidebar');
	if(_col1 && _col2){
		var _box1 = document.getElementById('column-holder');
		var _box2 = document.getElementById('bg');
		if(_box1 && _box2){
			if(_col1.offsetHeight > _col2.offsetHeight){
				if (window.addEventListener) _box2.style.minHeight = _box2.offsetHeight + (_col1.offsetHeight - _col2.offsetHeight) + 'px';
				else if (window.attachEvent && !window.opera) _box2.style.height = _box2.offsetHeight + (_col1.offsetHeight - _col2.offsetHeight) + 'px';
			}
			else if(_col2.offsetHeight > _col1.offsetHeight){
				if (window.addEventListener) _box1.style.minHeight = _box1.offsetHeight + (_col2.offsetHeight - _col1.offsetHeight) + 'px';
				else if (window.attachEvent && !window.opera) _box1.style.height = _box1.offsetHeight + (_col2.offsetHeight - _col1.offsetHeight) + 'px';
			}
		}
	}
}
if (window.addEventListener) window.addEventListener("load", initHeight, false);
else if (window.attachEvent && !window.opera) window.attachEvent("onload", initHeight);