code: function(element) {
      if (!(element && element.nodeType === 1)) {
        return;
      }
      var _suppressMouseEvents = function(event) {
        if (!(event || (event = _window.event))) {
          return;
        }
        if (event._source !== "js") {
          event.stopImmediatePropagation();
          event.preventDefault();
        }
        delete event._source;
      };
      var _elementMouseOver = function(event) {
        if (!(event || (event = _window.event))) {
          return;
        }
        _suppressMouseEvents(event);
        ZeroClipboard.focus(element);
      };
      element.addEventListener("mouseover", _elementMouseOver, false);
      element.addEventListener("mouseout", _suppressMouseEvents, false);
      element.addEventListener("mouseenter", _suppressMouseEvents, false);
      element.addEventListener("mouseleave", _suppressMouseEvents, false);
      element.addEventListener("mousemove", _suppressMouseEvents, false);
      _mouseHandlers[element.zcClippingId] = {
        mouseover: _elementMouseOver,
        mouseout: _suppressMouseEvents,
        mouseenter: _suppressMouseEvents,
        mouseleave: _suppressMouseEvents,
        mousemove: _suppressMouseEvents
      };
    }
docs: Add a `mouseover` handler function for a clipped element.
  
  @returns `undefined`
  @private