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"
    //alert(pTar.contentDocument.body.offsetHeight);
	//pTar.height=pTar.contentDocument.body.scrollHeight;
	
    if (pTar.contentDocument && pTar.contentDocument.body.offsetHeight){
      //ns6 syntax
      pTar.height = pTar.contentDocument.body.scrollHeight || pTar.contentDocument.body.offsetHeight+FFextraHeight;
    }
    else if (pTar.Document && pTar.Document.body.scrollHeight){
      //ie5+ syntax
      pTar.height = pTar.Document.body.scrollHeight;
    }
	else
	{
		pTar.height = pTar.contentDocument.documentElement.offsetHeight;
	}
  }
}