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;
		}
	}
}