function iframeAutoFit() {
    try {
        if (window != parent) {
            var a = parent.document.getElementsByTagName("IFRAME");
            for (var i = 0; i < a.length; i++) //author:meizz
            {
                if (a[i].contentWindow == window) {
                    var h1 = 0, h2 = 0;
                    a[i].parentNode.style.height = a[i].offsetHeight + "px";
                    a[i].style.height = "20px";
                    if (document.documentElement && document.documentElement.scrollHeight) {
                        h1 = document.documentElement.scrollHeight;
                    }
                    if (document.body) h2 = document.body.scrollHeight;

                    var h = Math.max(h1, h2);
                    if (document.all) { h += 4; }
                    if (window.opera) { h += 1; }
                    a[i].style.height = a[i].parentNode.style.height = h + "px";
                }
            }
        }
    }
    catch (ex) { }
}
if (window.attachEvent) {
    window.attachEvent("onload", iframeAutoFit);
}
else if (window.addEventListener) {
    window.addEventListener('load', iframeAutoFit, false);
}