if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
   document.writeln('<style type="text/css">img, input.image { visibility:hidden; } </style>');
   window.attachEvent("onload", fnLoadPngs);
}

function fnLoadPngs() {
   var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
   var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5 && Number(rslt[1]) < 7.0);

   for (var i = document.images.length - 1, img = null; (img = document.images[i]); i--) {
      if (itsAllGood && img.src.match(/\.png$/i) != null) {
         fnFixPng(img);
         img.attachEvent("onpropertychange", fnPropertyChanged);
      }
      img.style.visibility = "visible";
   }

   var nl = document.getElementsByTagName("INPUT");
   for (var i = nl.length - 1, e = null; (e = nl[i]); i--) {
      if (e.className && e.className.match(/\bimage\b/i) != null) {
         if (e.src.match(/\.png$/i) != null) {
            fnFixPng(e);
            e.attachEvent("onpropertychange", fnPropertyChanged);
         }
         e.style.visibility = "visible";
      }
   }
}

function fnPropertyChanged() {
   if (window.event.propertyName == "src") {
      var el = window.event.srcElement;
      if (!el.src.match(/x\.gif$/i)) {
         el.filters.item(0).src = el.src;
         el.src = "/images/x.gif";
      }
   }
}

function dbg(o) {
   var s = "";
   var i = 0;
   for (var p in o) {
      s += p + ": " + o[p] + "\n";
      if (++i % 10 == 0) {
         alert(s);
         s = "";
      }
   }
   alert(s);
}

function fnFixPng(img) {
   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 = "/images/x.gif";
}