iframe高度自适应

< iframe src="index.html" id="iframepage" frameborder="0" scrolling="no"

marginheight="0" marginwidth="0" onLoad="iFrameHeight()"></ iframe >

 

function iFrameHeight() {  

var ifm= document.getElementById( "iframepage" );  

var subWeb = document.frames ? document.frames[ "iframepage" ].document : ifm.contentDocument;  

if (ifm != null && subWeb != null ) {

    ifm.height = subWeb.body.scrollHeight;

    ifm.width = subWeb.body.scrollWidth;

}  

}