1.
      if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
   2.
          window.attachEvent("onload", alphaBackgrounds);
   3.
      }
   4.
       
   5.
      function alphaBackgrounds(){
   6.
          var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
   7.
          var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
   8.
          for (i=0; i<document.all.length; i++){
   9.
              var bg = document.all[i].currentStyle.backgroundImage;
  10.
              if (itsAllGood && bg){
  11.
                  if (bg.match(/\.png/i) != null){
  12.
                      var mypng = bg.substring(5,bg.length-2);
  13.
                      document.all[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+mypng+"', sizingMethod='scale')";
  14.
                      document.all[i].style.backgroundImage = "url('blank.gif')";
  15.
                  }
  16.
              }
  17.
          }
  18.
      }
  19.
      //CREDIT: [url]http://www.allinthehead.com/retro/69[/url]
  20.