code: function( event ) {
              if( event ){
                  $.getEvent = function( event ) {
                      return event;
                  };
              } else {
                  $.getEvent = function() {
                      return window.event;
                  };
              }
              return $.getEvent( event );
          }
docs: Gets the latest event, really only useful internally since its
  specific to IE behavior.
  @function
  @param {Event} [event]
  @returns {Event}
  @deprecated For internal use only
  @private