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

function imgswap(code)
{
	if(document.swap)
	{
		document.swap.src = '../images/cat/' + code + '.jpg';
	}
}