function dyniframesize(iframeObj) {
	if (!iframeObj)
		return false;

	if (window.opera) {
		if (iframeObj.contentDocument && iframeObj.contentDocument.body.offsetHeight)
			iframeObj.height = iframeObj.contentDocument.body.scrollHeight;
	} else {
		if (iframeObj.contentDocument && iframeObj.contentDocument.body.offsetHeight) 
			iframeObj.height = iframeObj.contentDocument.body.offsetHeight;
		else if (iframeObj.Document && iframeObj.Document.body.scrollHeight) 
			iframeObj.height = iframeObj.Document.body.scrollHeight;
		else 
			return false;
	}
	return true;
}