PNG 24 Transparency
Put this in the head section of all of your pages that use PNG-24s with transparency and they will show up right in Internet Explorer.Code
<!--[if lt IE 7]>
<script type="text/javascript">
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 and 6.
{
if ((version >= 5.5) && (document.body.filters))
{
for(var i=0; i<document.images.length; i++)
{
var img = document.images
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
var imgAttribs = img.attributes;
for (var j=0; j<imgAttribs.length; j++)
{
var imgAttrib = imgAttribs[j];
if (imgAttrib.nodeName == "align")
{
if (imgAttrib.nodeValue == "left") imgStyle = "float:left;" + imgStyle
if (imgAttrib.nodeValue == "right") imgStyle = "float:right;" + imgStyle
break
}
}
var strNewHTML = "<span " + imgID + imgClass + imgTitle
strNewHTML += " style="" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
strNewHTML += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
strNewHTML += "(src='" + img.src + "', sizingMethod='scale');""
strNewHTML += " onmouseover="PNGswap('" + img.id + "');" onmouseout="PNGswap('" + img.id +"');""
strNewHTML += "></span>"
img.outerHTML = strNewHTML
i = i-1
}
}
}
}
window.attachEvent("onload", correctPNG);
function PNGswap(myID)
{
var strOver = "_on"
var strOff = "_off"
var oSpan = document.getElementById(myID)
var currentAlphaImg = oSpan.filters(0).src
if (currentAlphaImg.indexOf(strOver) != -1)
oSpan.filters(0).src = currentAlphaImg.replace(strOver,strOff)
else
oSpan.filters(0).src = currentAlphaImg.replace(strOff,strOver)
}
</script>
<![endif]-->
<script type="text/javascript">
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 and 6.
{
if ((version >= 5.5) && (document.body.filters))
{
for(var i=0; i<document.images.length; i++)
{
var img = document.images
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
var imgAttribs = img.attributes;
for (var j=0; j<imgAttribs.length; j++)
{
var imgAttrib = imgAttribs[j];
if (imgAttrib.nodeName == "align")
{
if (imgAttrib.nodeValue == "left") imgStyle = "float:left;" + imgStyle
if (imgAttrib.nodeValue == "right") imgStyle = "float:right;" + imgStyle
break
}
}
var strNewHTML = "<span " + imgID + imgClass + imgTitle
strNewHTML += " style="" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
strNewHTML += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
strNewHTML += "(src='" + img.src + "', sizingMethod='scale');""
strNewHTML += " onmouseover="PNGswap('" + img.id + "');" onmouseout="PNGswap('" + img.id +"');""
strNewHTML += "></span>"
img.outerHTML = strNewHTML
i = i-1
}
}
}
}
window.attachEvent("onload", correctPNG);
function PNGswap(myID)
{
var strOver = "_on"
var strOff = "_off"
var oSpan = document.getElementById(myID)
var currentAlphaImg = oSpan.filters(0).src
if (currentAlphaImg.indexOf(strOver) != -1)
oSpan.filters(0).src = currentAlphaImg.replace(strOver,strOff)
else
oSpan.filters(0).src = currentAlphaImg.replace(strOff,strOver)
}
</script>
<![endif]-->
This code was not made by me, I found it useful so I posted it here.
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