whole_func_string: function (event) {
      var target = event.target;
      if ((target !== absoluteAnchor) && !util.isChildOf(target, absoluteAnchor)) {
        destroy();
      }
    }
func_code_string: function (event) {
      var target = event.target;
      if ((target !== absoluteAnchor) && !util.isChildOf(target, absoluteAnchor)) {
        destroy();
      }
    }
func_documentation_string: create and attach event listeners