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 && obj.currentStyle.backgroundImage.match(/\.png/i) != null) {
                fnFixPng(obj);
                obj.attachEvent("onpropertychange", fnPropertyChanged);
            }
        }
    }

    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)";
    }
    
    
    
    
    return {
        
        init: function() {
            
            if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
                addLoadEvent(fnLoadPngs);
            }
            
        }
    }
    
}();

bgsleight.init();