iframe的使用

<iframe id="iframe1" name="mainFrame" width="696px" onload="Javascript:SetCwinHeight()" height="1"  src="qywh.html"   frameborder="0" scrolling="no"></iframe>

 

 

// iframe 根据调取页面长度　自动改变长度

function SetCwinHeight(){
   var bobo=document.getElementById("mainframe"); //iframe id
   if (document.getElementById){
    if (bobo && !window.opera){
     if (bobo.contentDocument && bobo.contentDocument.body.offsetHeight){
      bobo.height = bobo.contentDocument.body.offsetHeight;
     }else if(bobo.Document && bobo.Document.body.scrollHeight){
      bobo.height = bobo.Document.body.scrollHeight;
     }
    }
   }
}