function custom(machine)
{
 javascript:window.open('http://www.customgames.nl/system/?rf=29&ln=0&id='+machine, 'custom'+machine, 'width=720, height=520, top=0, left=0, resizable=yes, toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, copyhistory=no');
}