function calcHeight(frameId, setTransparency)
{
	//find the height of the internal page
	var the_height=document.getElementById(frameId).contentWindow.document.body.scrollHeight;
 
	//change the height of the iframe
	the_height = the_height + 300;
	document.getElementById(frameId).height = the_height;

	//make the iframe transparent
	if (setTransparency)
		document.getElementById(frameId).setAttribute("allowTransparency","true");
}