行: 270
错误: 'undefined' 为空或不是对象//png透明背景支持
function correctPNG()
{
//alert(document.getElementsByTagName("div").item[1]);
for(var i=0; i<document.getElementsByTagName("div").length; i++) //for(var i=0; i<document.images.length; i++)
{
var img = document.getElementsByTagName("div").item[i]//var img = document.images[i]
var imgName =img.getAttribute("background-image") ? img.getAttribute("background-image").toUpperCase() : "" //var imgName =img.src.toUpperCase() 该行报错错误: 'undefined' 为空或不是对象 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=\"" + "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);
错误: 'undefined' 为空或不是对象//png透明背景支持
function correctPNG()
{
//alert(document.getElementsByTagName("div").item[1]);
for(var i=0; i<document.getElementsByTagName("div").length; i++) //for(var i=0; i<document.images.length; i++)
{
var img = document.getElementsByTagName("div").item[i]//var img = document.images[i]
var imgName =img.getAttribute("background-image") ? img.getAttribute("background-image").toUpperCase() : "" //var imgName =img.src.toUpperCase() 该行报错错误: 'undefined' 为空或不是对象 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=\"" + "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);
var img = document.getElementsByTagName("div").item[i]这个得到东西了吗?
var imgName = $(this).css("background-image");
// ...
}