var popup = null;
		
function createPopup(file, width, height, resize)
{
	destroyPopup();	

	popup = open(file, '', 
		'width=' + width + 
		',height=' + height + 
		',resizable=' + resize + 
		',scrollbars=yes,status=no,toolbar=no,directories=no,menubar=no,location=no');
}

function createNamedPopup(file, name)
{
	destroyPopup();
	
	if (name == "TravelMap")
		popup = open(file, '', 'width=480,height=360,resizable=yes,scrollbars=yes,status=no,toolbar=no,directories=no,menubar=no,location=no');	
	else if (name == "Weather")
		popup = open(file, '', 'width=800,height=320,resizable=yes,scrollbars=yes,status=no,toolbar=no,directories=no,menubar=no,location=no');
	else if (name == "Tall")
		popup = open(file, '', 'width=640,height=520,resizable=yes,scrollbars=yes,status=yes,toolbar=no,directories=no,menubar=no,location=no');
	else if (name == "Large")
		popup = open(file, '', 'width=780,height=590,resizable=yes,scrollbars=yes,status=yes,toolbar=no,directories=no,menubar=no,location=no');
	else
		popup = open(file, '', 'width=640,height=560,resizable=yes,scrollbars=yes,status=no,toolbar=no,directories=no,menubar=no,location=no');
}

function destroyPopup()
{
	if (popup != null)
	{	
		if (!popup.closed)		
			popup.close();
			
		popup = null;
	}
}