function alphaFixIE() {
	var s, i, j;
 
	// IMG
	var els = document.getElementsByTagName("IMG");
	for (i=0; i<els.length; i++) {
		s = els[i].src;
		if (s.toLowerCase().indexOf(".png") != -1) {
			els[i].src = "images/empty.gif";
			els[i].style.filter += "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + s + "', sizingMethod=image);";
		}
	}
 
	// CSS: background
	for (i=0; i<document.styleSheets.length; i++) {
		var pos = document.styleSheets[i].href.lastIndexOf("/");
		var cssDir = (pos != -1) ? document.styleSheets[i].href.substring(0, pos + 1) : "";
		for (j=0; j<document.styleSheets[i].rules.length; j++) {
			var style = document.styleSheets[i].rules[j].style;
			if (style.backgroundImage.toLowerCase().indexOf(".png") != -1) {
				var filename = style.backgroundImage.substring(4, style.backgroundImage.length - 1);
				if (filename.indexOf("http://") != 0 && filename.indexOf("/") != 0)
					filename = cssDir + filename;
				style.backgroundImage = "none";
				style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + filename + "', sizingMethod='crop');";
			}
		}
	}
}

function getIEVersionNumber() {
    var ua = navigator.userAgent;
    var MSIEOffset = ua.indexOf("MSIE ");
    
    if (MSIEOffset == -1) {
        return 0;
    } else {
        return parseFloat(ua.substring(MSIEOffset + 5, ua.indexOf(";", MSIEOffset)));
    }
}
 
if (window.attachEvent && getIEVersionNumber()<7) window.attachEvent("onload", alphaFixIE);