function openHelp (section)
{
  help_window = window.open ("help/help.php?section=" + section, "Help",
        "menubar=yes,resizable=yes,scrollbars=yes,width=580,height=430");
 /*  help_window.location.href = "help/help.php";*/
    if (help_window.opener == null) help_window.opener = self;
}