iframe高度自适应

JS文件

<script type="text/javascript">
    function setIframeHeight(iframe)
    {
        if (document.getElementById)
        {
            if (iframe && !window.opera)
            {
                if (iframe.contentDocument && iframe.contentDocument.body.offsetHeight)
                    iframe.height = iframe.contentDocument.body.offsetHeight;
                else if(iframe.Document && iframe.Document.body.scrollHeight)
                    iframe.height = iframe.Document.body.scrollHeight;
            }
        }
    }
    </script>

ifram引用

<iframe id="show" frameborder="0" name="show" onload="setIframeHeight(this)" scrolling="no" src="<%=url %>" width="590px"></iframe>