var pngfix = function() {
    var clear = "/img/clear.gif";
    var els = document.getElementsByTagName('*');
    var ip = /\.png/i;
    var i = els.length;
    while (i-- > 0) {
        var el = els[i];
        var es = el.style;
        if (el.src && el.src.match(ip) && !es.filter){
            es.height = el.height;
            es.width = el.width;
            es.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+el.src+"',sizingMethod='crop')";
            el.src = clear;
        } else {
            var elb = el.currentStyle.backgroundImage;
            if (elb.match(ip)) {
                var path = elb.split('"');
                var rep = (el.currentStyle.backgroundRepeat === 'no-repeat') ? 'crop' : 'scale';
                es.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+path[1]+"',sizingMethod='"+rep+"')";
                es.height = el.clientHeight+'px';
                es.backgroundImage = 'none';
                var elkids = el.getElementsByTagName('*');
                if (elkids) {
                    var j = elkids.length;
                    if (el.currentStyle.position !== "absolute") {
                        es.position = 'static';
                    }
                    while (j-- > 0) {
                        if (!elkids[j].style.position) {
                            elkids[j].style.position = "relative";
                        }
                    }
                }
            }
        }
    }
};
window.attachEvent('onload',pngfix);