meta-master/js/pngfix.js

// Drupal.js Global Killswitch
if (isJsEnabled()) {
  addLoadEvent(correctPNG);
}

// ------------------------------------------------------------------------
// |  Correctly handle PNG transparency in Win IE 5.5 or higher.          |
// |  http://homepage.ntlworld.com/bobosola.                              |
// ------------------------------------------------------------------------

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=\"" + "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
       }
      }
   }