var fixpngWas=false;
function isIE5() { return (navigator.userAgent.indexOf("MSIE 5") > -1); }
function isIE7() { return (navigator.userAgent.indexOf("MSIE 7") > -1); }
function isIE8() { return (navigator.userAgent.indexOf("MSIE 8") > -1); }
function isIE6() { return ((navigator.userAgent.indexOf("MSIE 6") > -1) && (navigator.userAgent.indexOf("Opera") == -1)); }
function isIE() { return (isIE5() || isIE6() || isIE8() || isIE7());}
function fixpng(){
	if(fixpngWas) return;
	for (var i = 0; i < document.images.length; i++) {
		var img = document.images[i];
		imgSrc = img.src;
		if (imgSrc.substr(imgSrc.length-3).toLowerCase() == "png") {
			var w, h;
			w = img.width, h = img.height;
			img.src = "images/x.gif";
			img.width = w, img.height = h;
			img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'" + imgSrc + "\', sizingMethod='scale');";
		}
	}
	fixpngWas=true;
}

var isIE = isIE();
if ( isIE ) window.attachEvent("onload", fixpng);