// ==UserScript==
// @name        farma
// @namespace   DD
// @include     /http:\/\/pl00\.plemiona\.pl\/game\.php\?.*&screen=am_farm/
// @version     1
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       none
// ==/UserScript==


$('.farm_icon_b').trigger('click');

function get(name){
    if(name=(new RegExp('[?&]'+encodeURIComponent(name)+'=([^&]*)')).exec($("a").attr('href')))
        return decodeURIComponent(name[1]);
        }

        link="http://pl100.plemiona.pl/game.php?village=n" + get('village')+ "&screen=am_farm";
            window.location.href = link;