IFrame自适应高度

  原文可以访问下面连接：http://blog.csdn.net/meizz/archive/2006/03/27/639857.aspx

<script type="text/javascript" language="javascript">

        function iframeAutoFit() {
            try {
                if (window != parent) {                   
                    var frame = parent.document.getElementById("contentIframe");
                    if (frame.contentWindow == window) {
                        var h1 = 0, h2 = 0, d = document, dd = d.documentElement;
                        frame.parentNode.style.height = frame.offsetHeight + "px";
                        frame.style.height = "10px";

                        if (dd && dd.scrollHeight) h1 = dd.scrollHeight;
                        if (d.body) h2 = d.body.scrollHeight;
                        var h = Math.max(h1, h2);

                        if (document.all) { h += 4; }
                        if (window.opera) { h += 1; }
                        frame.style.height = frame.parentNode.style.height = h + "px";
                    }

                }
            }
            catch (ex) { }
        }
        if (window.attachEvent) {
            window.attachEvent("onload", iframeAutoFit);
            //window.attachEvent("onresize",  iframeAutoFit);
        }
        else if (window.addEventListener) {
            window.addEventListener('load', iframeAutoFit, false);
            //window.addEventListener('resize',  iframeAutoFit,  false);
        }
    </script>