function openNew(s) {
    var url = s.options[s.selectedIndex].value;
    var newWin = window.open(url,"window_name","width=900,height=700,toolbar=1,directories=1,menubar=1,status=1,resizable=1,location=1,scrollbars=1,copyhistory=1")
    newWin.window.focus();    
}