482     // IE PNG fixing code

   483     if ( isset($_SERVER['HTTP_USER_AGENT']) && strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE') )

   484     {

   485       $this->add_header('

   486         <!--[if lt IE 7]>

   487         <script language="JavaScript">

   488         function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.

   489         {

   490            var arVersion = navigator.appVersion.split("MSIE");

   491            var version = parseFloat(arVersion[1]);

   492            if (version >= 5.5 && typeof(document.body.filters) == "object")

   493            {

   494               for(var i=0; i<document.images.length; i++)

   495               {

   496                  var img = document.images[i];

   497                  continue;

   498                  var imgName = img.src.toUpperCase();

   499                  if (imgName.substring(imgName.length-3, imgName.length) == "PNG")

   500                  {

   501                     var imgID = (img.id) ? "id=\'" + img.id + "\' " : "";

   502                     var imgClass = (img.className) ? "class=\'" + img.className + "\' " : "";

   503                     var imgTitle = (img.title) ? "title=\'" + img.title + "\' " : "title=\'" + img.alt + "\' ";

   504                     var imgStyle = "display:inline-block;" + img.style.cssText;

   505                     if (img.align == "left") imgStyle = "float:left;" + imgStyle;

   506                     if (img.align == "right") imgStyle = "float:right;" + imgStyle;

   507                     if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle;

   508                     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>";

   509                     img.outerHTML = strNewHTML;

   510                     i = i-1;

   511                  }

   512               }

   513            }   

   514         }

   515         window.attachEvent("onload", correctPNG);

   516         </script>

   517         <![endif]-->

   518         ');

   519     }

   520