    { type: "mouseout",   target: '<div id="div2">', buttons: 1, button: 0 },
          { type: "mouseleave", target: '<div id="div2">', buttons: 1, button: 0 },
          { type: "mouseover",  target: '<div id="div3">', buttons: 1, button: 0 },
          { type: "mouseenter", target: '<div id="div3">', buttons: 1, button: 0 },
          { type: "mouseover",  target: '<div id="div4">', buttons: 1, button: 0 },
          { type: "mouseenter", target: '<div id="div4">', buttons: 1, button: 0 },
          { ty