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){   
    //begin resizing iframe   
    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;   
    }   
  }   
}