iframe自适应高度(IE6、IE7、fireFox下测试通过)

<script type="text/javascript" language="javascript">
function TuneHeight() {
var frm = document.getElementById("content01");
var subWeb = document.frames ? document.frames["content01"].document : frm.contentDocument;
if(frm != null && subWeb != null) {
   frm.height = subWeb.body.scrollHeight;
}
}
</script>
<iframe id="content01" name="content01" frameBorder=0 scrolling=no src="调用地址" width="100%"onLoad="TuneHeight()" ></iframe>