Implemented "Logout to URL"

doc/config.html

@@ -2574,6 +2574,11 @@ Options Location = Main Building{a}, New Building{b}, Old Building{c}
         to the logbook selection page instead to the login page. The default is
         <b>0</b>.
       </li>
+      <li>
+         <b><code>Logout to URL = &lt;URL&gt;</code></b><br>
+         If this URL is set, the "<i>Logout</i>" operation takes you to
+         a specific web page specified in the URL.
+      </li>
       <li>
         <b><code>List after submit = 0|1</code></b><br>
         If this flag is <b>1</b>, the list page is shown after the

src/elogd.c

@@ -28071,6 +28071,9 @@ void interprete(char *lbook, char *path)
       if (getcfg(lbs->name, "Logout to main", str, sizeof(str)) && atoi(str) == 1) {
          sprintf(str, "../");
          setparam("redir", str);
+      } else {
+         if (getcfg(lbs->name, "Logout to URL", str, sizeof(str)))
+            setparam("redir", str);
       }
       set_sid_cookie(lbs, "", "");
       sid_remove(getparam("sid"));