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 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

		var tmp = parent.document.body.scrollHeight - parent.findPos( parent.document.getElementById( 'content' ) )[1];

		if( document.getElementById( 'footerHeight' ) )
			tmp = tmp - document.getElementById( 'footerHeight' ).offsetHeight;

		if ( docHt )
		{
			if( docHt > tmp )
				iframeEl.style.height = docHt + 30 + 'px';
			else
				iframeEl.style.height = tmp + 'px';
		}
		else
			iframeEl.style.height = tmp + 'px';
	}
}

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

function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}