var supported = !/Gecko/.test(navigator.userAgent) && !/Opera/.test(navigator.userAgent) && /MSIE (5\.5|6)/.test(navigator.userAgent) &&  navigator.platform == "Win32";
function OnLoadPngFix() {
    if(!supported) return;
    if(!event.srcElement) return;
    var src=event.srcElement.src;
    if(!src) return;
    if(!new RegExp(blankSrc).test(src)) {
        // test for png
        if(/\.png$/.test(src.toLowerCase())) {
            src = src.replace(/\(/g, "%28" );
            src = src.replace(/\)/g, "%29" );
            // set blank image
            event.srcElement.src = blankSrc;
            // set filter
            event.srcElement.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
        } 
        else { event.srcElement.runtimeStyle.filter = "";}
    }
}