How to fix IE 6 transparent png problem

In Internet Explorer 6 and below, transparetn pngs do not show correctly. The transparent part of the png is not transparent but a solid color. Anyways to fix that problem add this code to your head tag.

HTML Code:

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<script language="JavaScript">
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
  var arVersion = navigator.appVersion.split("MSIE")
  var version = parseFloat(arVersion[1])
  if ((version >= 5.5) && (document.body.filters))
  {
      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=\"" + "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);
</script>

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Not good, it will unnecessarily burden IE 7.

A bit of conditional comments should fix that. :)

Code:

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<!--[if lte IE 6]>
<script type="text/javascript">
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
  var arVersion = navigator.appVersion.split("MSIE")
  var version = parseFloat(arVersion[1])
  if ((version >= 5.5) && (document.body.filters))
  {
      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=\"" + "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);
</script>
<![endif]-->

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