iframe自动适应大小

 

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

        }
    }
</script> 

 

<iframe width="100%" frameborder="0" id="ifr" name="ifr" src="mindex.html" onload="SetWinHeight(this)" scrolling="no"></iframe>