function OpenWhois() {
    var pos_y = (screen.height/2)-200;
    var pos_x = (screen.width/2)-220;
    var option = 'resizable=no, modal=1, dialog=1, location=center, width=440, height=400, menubar=no, status=no, scrollbars=yes, menubar=no, top='+pos_y+', left='+pos_x;
    window.open('./whois/index.php', '', option);
}