var offsetCalculator =
{
	absoluteLeft : function (obj)
	{
		return (obj.offsetLeft != null ? obj.offsetLeft : 0) + (obj.offsetParent != null ? offsetCalculator.absoluteLeft(obj.offsetParent) : 0);
	},
	absoluteTop : function  (obj)
	{
		return (obj.offsetTop != null ? obj.offsetTop : 0) + (obj.offsetParent != null ? offsetCalculator.absoluteTop(obj.offsetParent) : 0);
	}
}