if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
  window.attachEvent("onload", enableAlphaImages);
}

function enableAlphaImages(){
  var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
  var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
  if (itsAllGood) {
    for (var i=0; i<document.all.length; i++){
      var obj = document.all[i];
      var bg = obj.currentStyle.backgroundImage;
      var img = document.images[i];
      if (bg && bg.match(/\.png/i) != null && bg.match(/\lyma-tech/) == null ) {
        var img = bg.substring(5,bg.length-2);
        var offset = obj.style["background-position"];
        obj.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+img+"', sizingMethod='scale')";
        obj.style.backgroundImage = "url('http://image.okgo.tw/SuitImg/share/zh-tw/blank.gif')";
        obj.style["background-position"] = offset; // reapply
      } else if (img && img.src.match(/\.png$/i) != null) {
        var src = img.src;
        img.style.width = img.width + "px";
        img.style.height = img.height + "px";
        img.style.filter ="progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+src+"', sizingMethod='scale')"
        img.src = "http://image.okgo.tw/SuitImg/share/zh-tw/blank.gif";
      }
    }
  }
}