function getCookie(name) {
      var cookieValue = null;
      if (document.cookie && document.cookie !== '') {
          var cookies = document.cookie.split(';');
          for (var i = 0; i < cookies.length; i++) {
              var cookie = jQuery.trim(cookies[i]);
              // Does this cookie string begin with the name we want?
              if (cookie.substring(0, name.length + 1) === (name + '=')) {
                  cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                  break;
              }
          }
      }
      return cookieValue;
      }
      var csrftoken = getCookie('csrftoken');
            function csrfSafeMethod(method) {
          // these HTTP methods do not require CSRF protection
          return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
      }
      $.ajaxSetup({
          beforeSend: function(xhr, settings) {
              if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
                  xhr.setRequestHeader("X-CSRFToken", csrftoken);
              }
          }
      });