$(function() {
	var boxes = [ $("DIV.box.main"), $("DIV#boxes") ];
	for (var i = 0; i < boxes.length; i++)
	{
		var box = boxes[i];
		var position = box.position();
		if (position != null)
		{
			var top = box.position().top;
			if (top != null && top > 100)
				box.css("margin-top", "-" + (top - 100) + "px");
		}
	}
});