function doSetiFramHeight() 
{
	if (parent == window) return;
	else parent.setIframeHeight('mainFrame');
}

function setIframeHeight(iframeName)
{
	var iframeWin = window.frames[iframeName];
	var iframeEl = document.getElementById? document.getElementById(iframeName): document.all? document.all[iframeName]: null;
	if ( iframeEl && iframeWin ) 
	{
		iframeEl.style.height = "auto"; // helps resize (for some) if new doc shorter than previous  
		var docHt = getDocHeight(iframeWin.document);
		// need to add to height to be sure it will all show
		if (docHt) iframeEl.style.height = docHt + 30 + "px";
	}
}
	
function getDocHeight(doc) 
{
	var docHt = 0, sh, oh;
	if (doc.height) docHt = doc.height;
	else if (doc.body) 
	{	
		if (doc.body.scrollHeight) docHt = sh = doc.body.scrollHeight;
		if (doc.body.offsetHeight) docHt = oh = doc.body.offsetHeight;
		if (sh && oh) docHt = Math.max(sh, oh);	
	}	
	return docHt;
}

function loadIframe(iframeName, url) 
{
	if ( window.frames[iframeName] ) 
	{
		window.frames[iframeName].location = url;   
		return false;
	}
	else return true;
}