function open_window(url) {mywin = window.open(url,"win",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=0,width=750,height=550');
}
function open_window3(url) {mywin = window.open(url,"win",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=0,width=850,height=690');
}