//定义iframe的ID
 var iframeids=["kjdy1","kjdy2","kjdy3"]

 //如果用户的浏览器不支持iframe是否将iframe隐藏 yes 表示隐藏，no表示不隐藏
 var iframehide="yes"

 function dyniframesize() 
 {
  var dyniframe=new Array()
  for (i=0; i<iframeids.length; i++)
  {
   if (document.getElementById)
   {
    //自动调整iframe高度
    dyniframe[dyniframe.length] = document.getElementById(iframeids[i]);
    if (dyniframe[i] && !window.opera)
    {
     dyniframe[i].style.display="block"
     if (dyniframe[i].contentDocument && dyniframe[i].contentDocument.body.offsetHeight) //如果用户的浏览器是NetScape
      dyniframe[i].height = dyniframe[i].contentDocument.body.offsetHeight; 
     else if (dyniframe[i].Document && dyniframe[i].Document.body.scrollHeight) //如果用户的浏览器是IE
      dyniframe[i].height = dyniframe[i].Document.body.scrollHeight;
    }
   }
   //根据设定的参数来处理不支持iframe的浏览器的显示问题
   if ((document.all || document.getElementById) && iframehide=="no")
   {
    var tempobj=document.all? document.all[iframeids[i]] : document.getElementById(iframeids[i])
    tempobj.style.display="block"
   }
  }
 }

 if (window.addEventListener)
 window.addEventListener("load", dyniframesize, false)
 else if (window.attachEvent)
 window.attachEvent("onload", dyniframesize)
 else
 window.onload=dyniframesize