code: function _trigger(element, name, value, autoRemove) {
          var key = "data-ld-" + name;
          if (value !== undefined && value !== null) {
              element.setAttribute(key, value);
              if (autoRemove) {
                  window.setTimeout(element.removeAttribute.bind(element, key));
              }
          } else {
              element.removeAttribute(key);
          }
      }
docs: set an event on a element