function bgPng(){
    for(i=0; i<document.all.length; i++) {
        var bg = document.all[i].currentStyle.backgroundImage;
        if(bg.match(/\.png/i) != null) {
            var mypng = bg.substring(5,bg.length-2);
            document.all[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+mypng+"', sizingMethod='scale')";
            document.all[i].style.backgroundImage = "url('/i/images/spacer.gif')";
        }
    }
}

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