IFrame取消滚动条并且按内容长度显示mht

 <iframe onload="Javascript:SetWinHeight(this)" id="frame1" name="content1" src="chenGuoZS/7.mht" align="middle" height="100%" frameborder="none" border="0" width="758px" scroll="no"></iframe>

并且使用JS：

function SetWinHeight(obj)
{
 var win=obj;
 if (document.getElementById){
  if (win && !window.opera){
     if (win.contentDocument && win.contentDocument.body.offsetHeight)
           win.style.height = win.contentDocument.body.offsetHeight;
     else if(win.Document && win.Document.body.scrollHeight)
           win.style.height = win.Document.body.scrollHeight;
  }
    }
}