function CenterPopupWindow(mypage,myname,w,h) {
    var win = null;
    var winl = (screen.width-w)/2;
    var wint = (screen.height-h)/2;
    if (winl < 0) winl = 0;
    if (wint < 0) wint = 0;
    var settings = 'height=' + h + ',';
    settings += 'width=' + w + ',';
    settings += 'top=' + wint + ',';
    settings += 'left=' + winl + ',';
    settings += 'scrollbars=yes,menubar=yes,location=yes,status=yes,resizable=yes';
    win = window.open(mypage,myname,settings);
    win.window.focus();
}
function PopupWindowMax(mypage,myname) {
    var win = null;
    var settings = 'height=' + (screen.height - 200) + ',';
    settings += 'width=' + (screen.width - 10) + ',';
    settings += 'top=0,';
    settings += 'left=0,';
    settings += 'toolbar=yes,scrollbars=yes,menubar=yes,location=yes,status=yes,resizable=yes';
    win = window.open(mypage,myname,settings);
    win.window.focus();
}