function open_popup(url)
{
window.open(url, 'popup', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=600,height=300' );
}
function open_popup2(url)
{
window.open(url, 'popup', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=1000,height=700' );
}