使用jQuery按下反向箭头键

我正在使用以下css来反转文本区域:

.reverse
{
  /* reverse the text */
  transform: scale(-1, 1);
  -webkit-transform: scale(-1, 1);
  -moz-transform: scale(-1, 1); 
  -o-transform: scale(-1, 1); 
  transform: scale(-1, 1);
}

这很好,除了一件事:使用箭头键在文本中导航现在是向后的。我想反转箭头键的方向,使它们按预期工作。以下是我尝试过的:

$(document).ready(function() {

  // flag which indicates when the key event has been overridden
  var keyEventOverridden = false;

  // reverse the arrow keys for the reverse textbox
  $(".reverse").bind("keydown keyup", function(event) {

    // allow the default behavior if the key has already been overridden
    if (keyEventOverridden)
      return true;

    // get the keyCode
    var keyCode = event.keyCode || event.which;

    // create the replacement event
    var replacementEvent = $.Event(event.type);

    // trigger the right key if the left key was pressed down
    if (keyCode === 37)
    {
      replacementEvent.keyCode = 39;
      replacementEvent.which = 39;
    }
    // trigger the left key if the right key was pressed down
    else if (keyCode === 39)
    {
      replacementEvent.keyCode = 37;
      replacementEvent.which = 37;
    }
    else
    {
      // allow the default behavior
      return true;
    }

    // prevent the key event from being overridden again
    keyEventOverridden = true;

    // trigger the replacement event
    $(this).trigger(replacementEvent);

    // allow the key event to be overridden again
    keyEventOverridden = false;

    // prevent the default behavior
    return false;
  });
});

这个脚本不起作用。有人知道为什么吗?