//-- 直接调用这个js文件即可<script language="javascript" src="MyPng.Js"></script>
function correctPNG(){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" || 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;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='scale');\"></span>";img.outerHTML = strNewHTML;i = i-1;}}}if(navigator.userAgent.indexOf("MSIE")>=0){    window.attachEvent("onload", correctPNG);}else{window.addEventListener("onload", correctPNG, true);}