JS背景色图片透明

来源：互联网发布：淘宝轮播图片大小编辑：程序博客网时间：2024/04/28 12:41

将以下代码加到<head></head>中间。

//image透明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") { 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="/" mce_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 } } }window.attachEvent("onload", correctPNG);

//背景透明function alphaBackgrounds(){ for (i=0; i<document.all.length; i++){ var bg = document.all[i].currentStyle.backgroundImage; if (bg){ if (bg.match(/.png/i) != null){ var mypng = bg.substring(5,bg.length-2); document.all[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+mypng+"', sizingMethod='scale')"; document.all[i].style.backgroundImage = "url('')"; } } }} window.attachEvent("onload", alphaBackgrounds);