439     }

   439     }

   440 

   440 

   441     document.body.addEventListener("keydown", function(event) {

   441     document.body.addEventListener("keydown", function(event) {

   442       if (document.activeElement.value)

   442       if (document.activeElement.value)

   443         return;

   443         return;

   444       var key = event.keyCode || event.which;

   446       var key = event.keyCode || event.which;

   445       var keyMoves = {38: "up", 40: "down", 37: "left", 39: "right"};

   447       var keyMoves = {38: "up", 40: "down", 37: "left", 39: "right"};

   446       if (key in keyMoves) {

   448       if (key in keyMoves) {

   447         ui.action[keyMoves[key]]();

   449         ui.action[keyMoves[key]]();

   448         event.preventDefault();

   450         event.preventDefault();