var getFFVersion=navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1]  
//extra height in px to add to iframe in FireFox 1.0+ browsers  
var FFextraHeight=getFFVersion>=0.1? 16 : 0  
function dyniframesize(iframename) {  
  var pTar = null;  
  if (document.getElementById){  
    pTar = document.getElementById(iframename);  
  }  
  else{   
    eval('pTar = ' + iframename + ';');   
  }   
  if (pTar && ((!window.opera) || (!window.opera.version()<="8.54"))){  
    //begin resizing iframe  operaä¯ÀÀÆ÷°æ±¾²»µÃµÍÓÚ8.54
    pTar.style.display="block"   
    if (pTar.contentDocument && pTar.contentDocument.body.offsetHeight){ 
      //ns6 syntax
      pTar.height = pTar.contentDocument.body.offsetHeight+FFextraHeight;   
    }  
    else if (pTar.Document && pTar.Document.body.scrollHeight){
      //ie5+ syntax   
      pTar.height = pTar.Document.body.scrollHeight;  
    } 
  } 
}   
  

function ifr(url,w,ID,ID1)
{document.write('<iframe id="MyFrameID" onload="Javascript:{dyniframesize('+ID+');}" marginwidth="0"  width="'+w+'" border="0" frameborder="0" scrolling="no" src="'+url+'"></iframe>');}