PNG Transparency in IE





4
Date Submitted Thu. Feb. 16th, 2006 9:08 AM
Revision 3 of 3
Helper martindale
Tags PNG java | png javascript
Comments 0 comments
Javascript to fix PNG transparency in IE < 7, because 7 fixes it.

Apply it to the header to fix the iPod thing?

<!--[if lte IE 7.0000]>
<script language="JavaScript">
function correctPNG() // correctly handle PNG transparency in versions of Win IE lower than 7.
   {
   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]-->
 

Eric Martindale

gwing.net

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