iframe自适应高度 JS-CODE <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>本文转载自http://www.cnblogs.com/MaxIE/archive/2008/08/13/1266597.html