function correctPNG() // correctly handle PNG transparency in Win IE 5.5 or higher.
{
	for(var i=0; i<document.images.length; i++) {
		var img     = document.images[i];
		var imgName = img.src.toUpperCase();
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
		{
			doPNGCorrection( img );
			i = i-1
		}
	}
}

function doPNGCorrection( img ) {
	var imgName = img.src.toUpperCase();
	if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	{
		var imgID = (img.id) ? "id='" + img.id + "' " : ""
		var imgClass = (img.className) ? "class='" + img.className + "' " : ""
		var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
		var imgStyle = "display:inline-block;" + img.style.cssText.replace( /FILTER:.*;/, "" );
		if (img.align == "left") imgStyle = "float:left;" + imgStyle
		if (img.align == "right") imgStyle = "float:right;" + imgStyle
		if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle		
		var strNewHTML = "<span " + imgID + imgClass + imgTitle
		+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
		+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
		+ "(src=\'" + img.src + "\', sizingMethod='image');\"></span>" 
		img.outerHTML = strNewHTML
	}
}

var bMSIE = false;
if( window.attachEvent ) {
	bMSIE = true;
	window.attachEvent("onload", correctPNG);
}