function open_window(url) {
mywin = window.open(url,"win2",'toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=650,height=500');
}

function open_window2(url) {
mywin = window.open(url,"win2",'toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=650,height=500');
}