iframe高度变化

// 参考
http://blog.csdn.net/alex8046/article/details/51456131

js代码也得跟着改

function changeFrameHeight(){
    var ifm= document.getElementById("iframepage"); 
    ifm.height=document.documentElement.clientHeight;

}

window.onresize=function(){  
     changeFrameHeight();  

}