<iframesrc="http://www.baidu.com/web/liuyan"id="ifrm"onload="loadFrame(this)"frameborder="0"scrolling="no"width="71%"height="1500"></iframe><scripttype="text/javascript">functionloadFrame(obj){$('html,body').animate({scrollTop:$("#ifrm").offset().top},1);}window.addEventListener('message',function(e){alert(e.data);},false);</script>

对应的iframe页面

<divid="dianjiwo">点击我测试</div><script>$(function(){//iframe嵌套发送父页面参数$("#dianjiwo").click(function(){window.parent.postMessage(1,'*');});})</script>