function fGuestbookPopup
(	page
,	width
,	height
,	options )
{
	var top		 = (screen.height-height)/2;
	var left	 = (screen.width-width)/2;
	popup		 = window.open(	page
				,	''
				,	'top='+top+',left='+left+',width='+width+',height='+height+','+options );
	return popup;
}

function m_Msg_Add
(	targetDir )
{
	// Open a new message in a popup window
	msg_win		 = fGuestbookPopup(targetDir+'guestbook_newmessage.php?msg_parent=1[var._amp_mpid]',580,400,'toolbar=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=no') ;
}

function m_Msg_Close
(	win )
{
	// Close the popup window and refresh the display
	win.close();
	this.location	 = this.location;
}