/**
 * A list of JavaScript key codes to reference by name.
 * From 'Foundation HTML5 Animation with JavaScript': http://amzn.com/1430236655?tag=html5anim-20
 */

var keycode = {
  BACKSPACE: 8,
  TAB: 9,
  ENTER: 13,
  COMMAND: 15,
  SHIFT: 16,
  CONTROL: 17,
  ALTERNATE: 18,
  PAUSE: 19,
  CAPS_LOCK: 20,
  NUMPAD: 21,
  ESCAPE: 27,
  SPACE: 32,
  PAGE_UP: 33,
  PAGE_DOWN: 34,
  END: 35,
  HOME: 36,

  //arrows
  LEFT: 37,
  UP: 38,
  RIGHT: 39,
  DOWN: 40,

  INSERT: 45,
  DELETE: 46,

  //numbers
  NUMBER_0: 48,
  NUMBER_1: 49,
  NUMBER_2: 50,
  NUMBER_3: 51,
  NUMBER_4: 52,
  NUMBER_5: 53,
  NUMBER_6: 54,
  NUMBER_7: 55,
  NUMBER_8: 56,
  NUMBER_9: 57,

  //letters
  A: 65,
  B: 66,
  C: 67,
  D: 68,
  E: 69,
  F: 70,
  G: 71,
  H: 72,
  I: 73,
  J: 74,
  K: 75,
  L: 76,
  M: 77,
  N: 78,
  O: 79,
  P: 80,
  Q: 81,
  R: 82,
  S: 83,
  T: 84,
  U: 85,
  V: 86,
  W: 87,
  X: 88,
  Y: 89,
  Z: 90,

  LEFT_WINDOW_KEY: 91,
  RIGHT_WINDOW_KEY: 92,
  SELECT_KEY: 93,

  //number pad
  NUMPAD_0: 96,
  NUMPAD_1: 97,
  NUMPAD_2: 98,
  NUMPAD_3: 99,
  NUMPAD_4: 100,
  NUMPAD_5: 101,
  NUMPAD_6: 102,
  NUMPAD_7: 103,
  NUMPAD_8: 104,
  NUMPAD_9: 105,
  NUMPAD_MULTIPLY: 106,
  NUMPAD_ADD: 107,
  NUMPAD_ENTER: 108,
  NUMPAD_SUBTRACT: 109,
  NUMPAD_DECIMAL: 110,
  NUMPAD_DIVIDE: 111,

  //function keys
  F1: 112,
  F2: 113,
  F3: 114,
  F4: 115,
  F5: 116,
  F6: 117,
  F7: 118,
  F8: 119,
  F9: 120,
  F10: 121,
  F11: 122,
  F12: 123,
  F13: 124,
  F14: 125,
  F15: 126,

  NUM_LOCK: 144,
  SCROLL_LOCK: 145,

  //punctuation
  SEMICOLON: 186,
  EQUAL: 187,
  COMMA: 188,
  MINUS: 189,
  PERIOD: 190,
  SLASH: 191,
  BACKQUOTE: 192,
  LEFTBRACKET: 219,
  BACKSLASH: 220,
  RIGHTBRACKET: 221,
  QUOTE: 222
};