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);
        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 = "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 = "http://www.dmp.wa.gov.au/images/space.gif";
}