iframe自适应高度和宽度

兼容ff和ie

<iframe id="iframeContent" frameborder="0"  scrolling="no"  onload="setHtmlContent();" src="页面地址"></iframe>

function setHtmlContent(isIE){ 
     if(document.getElementById("iframeContent").readyState != 'complete' && isIE){
     setTimeout("setHtmlContent();",30);
     return ;
     }
      
    var frmContent = document.getElementById("iframeContent");
    var frmBody = frmContent.contentWindow.document.body;
    
    if(!frmBody) return;
    
    if(frmBody.scrollHeight>frmContent.offsetHeight){
           frmContent.height=frmBody.scrollHeight+"px";
    }
     if(frmBody.scrollWidth>frmContent.offsetWidth){
          frmContent.style.width =(frmBody.scrollWidth+30).toString()+"px" 
    }

}

setHtmlContent(true);