iFrame自适应高度,支持IE及FireFox

 iFrame自适应高度,支持IE及FireFox

function adjustFrameSize()
  {

            var frm = document.getElementById("iframe1");
            var subWeb = document.frames ? document.frames["iframe1"].document : frm.contentDocument;
           if(frm != null && subWeb != null)
          { 
                   frm.style.height="0px";//初始化一下,否则会保留大页面高度
                   frm.style.height = subWeb.documentElement.scrollHeight+"px"; 
                   frm.style.width = subWeb.documentElement.scrollWidth+"px"; 
                   subWeb.body.style.overflowX="auto";
                   subWeb.body.style.overflowY="auto";

} }