Unblock punishment

javascript:
function getElementByXpath(path) { return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; }
(function(){
  var locked_staff = getElementByXpath('//*[@id="punishment_staff_id"]');
  locked_staff.removeAttribute("disabled");

  var url = window.location;
  var url = "" + url + "";
  var punishment_id = url.match(/\d/g);
  punishment_id = punishment_id.join("");

  var appeal_xpath_1 = "//*[@id='edit_punishment_" + punishment_id + "']/label/input[1]";
  var locked_appeal_1 = getElementByXpath(appeal_xpath_1);
  locked_appeal_1.removeAttribute("disabled");

  var appeal_xpath_2 = "//*[@id='edit_punishment_" + punishment_id + "']/label/input[2]";
  var locked_appeal_2 = getElementByXpath(appeal_xpath_2);
  locked_appeal_2.removeAttribute("disabled");
})();