var bgsleight = function() {

    function addLoadEvent(func) {
        var oldonload = window.onload;
        if (typeof window.onload != 'function') {
            window.onload = func;
        } else {
            window.onload = function() {
                if (oldonload) {
                    oldonload();
                }
                func();
            }
        }
    }

    function fnLoadPngs() {
        var rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
        var itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);
        for (var i = document.all.length - 1, obj = null; (obj = document.all[i]); i--) {
            if (itsAllGood) {
                if (obj.currentStyle.backgroundImage.match(/\.png/i) != null) {
                    fnFixPng(obj);
                    obj.attachEvent("onpropertychange", fnPropertyChanged);
                } else if (obj.tagName == "IMG" && obj.src.match(/\.png/i) != null) {
                    fnFixPngImg(obj);
                }
            }
        }
    }

    function fnPropertyChanged() {
        if (window.event.propertyName == "style.backgroundImage") {
            var el = window.event.srcElement;
            if (!el.currentStyle.backgroundImage.match(/x\.gif/i)) {
                var bg = el.currentStyle.backgroundImage;
                var src = bg.substring(5, bg.length - 2);
                el.filters.item(0).src = src;
                el.style.backgroundImage = "url(x.gif)";
            }
        }
    }

    function fnFixPng(obj) {
        var bg = obj.currentStyle.backgroundImage;
        var src = bg.substring(5, bg.length - 2);
        obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='scale')";
        obj.style.backgroundImage = "url(x.gif)";
    }

    function fnFixPngImg(obj) {
        var imgID = (obj.id) ? "id='" + obj.id + "' " : "";
        var imgClass = (obj.className) ? "class='" + obj.className + "' " : "";
        var imgTitle = (obj.title) ? "title='" + obj.title + "' " : "title='" + obj.alt + "' ";
        var imgStyle = "display:inline-block;" + obj.style.cssText;
        if (obj.align == "left") imgStyle = "float:left;" + imgStyle;
        if (obj.align == "right") imgStyle = "float:right;" + imgStyle;
        if (obj.parentElement.href) imgStyle = "cursor:hand;" + imgStyle;
        var strNewHTML = "<span " + imgID + imgClass + imgTitle
                      + " style=\"" + "width:" + obj.width + "px; height:" + obj.height + "px;" + imgStyle + ";"
                      + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
                      + "(src=\'" + obj.src + "\', sizingMethod='scale');\"></span>";
        obj.outerHTML = strNewHTML;
    }



    return {

        init: function() {

            if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
                var ua = window.navigator.userAgent;
                /MSIE( )(\d+(\.\d+)?)/.test(ua);
                var v = parseFloat(RegExp.$2);
                if (v < 7) { addLoadEvent(fnLoadPngs); }
            }

        }
    }

} ();

bgsleight.init();