http://llmotorsport.se/resources/4.3/scripts/gallery/jquery.ds.fixiebackground-1.0.js

1(function($) {
2
3	function parentBackgroundColor (element) {
4		var current, color, background;
5		for (current = element; current.length; current = current.parent())
6		{
7			color = current.css("background-color");
8			if (color && color != "transparent")
9			{
10				return color;
11			}
12		}
13		return "#ffffff";
14	}
15
16	$.fn.fixIEBackground = function () {
17		if ($.browser.msie && $.browser.version < "7")
18		{
19			return this.each(function () {
20				var obj = $(this),
21					color = parentBackgroundColor(obj);
22				obj.css("background-color", color);
23			});
24		}
25		return this;
26	}
27
28})(jQuery);