比较靠谱的iframe 自适应高度

<iframe id="frame_content" src="iframe_b.html" scrolling="no" frameborder="0"
 onload="this.height=100"></iframe>
<script type="text/javascript">
function reinitIframe(){
var iframe = document.getElementById("frame_content");
try{
var bHeight = iframe.contentWindow.document.body.scrollHeight;
var dHeight = iframe.contentWindow.document.documentElement.scrollHeight;
var height = Math.max(bHeight, dHeight);
iframe.height =  height;
}catch (ex){}
}
window.setInterval("reinitIframe()", 200);
</script>


原文出自 http://www.kuqin.com/webpagedesign/20080516/8536.html

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