var ASCII_KEYCODE_TAB = 9;
var ASCII_KEYCODE_ENTER = 13;
var ASCII_KEYCODE_ESC = 27;
var ASCII_KEYCODE_SPACE = 32;
var ASCII_KEYCODE_PGUP = 33;
var ASCII_KEYCODE_PGDN = 34;
var ASCII_KEYCODE_END = 35;
var ASCII_KEYCODE_HOME = 36;
var ASCII_KEYCODE_ARROW_LEFT = 37;
var ASCII_KEYCODE_ARROW_UP = 38;
var ASCII_KEYCODE_ARROW_RIGHT = 39;
var ASCII_KEYCODE_ARROW_DOWN = 40;
var ASCII_KEYCODE_F11 = 122;
var ASCII_KEYCODE_CTRL_J = 10;
var ASCII_KEYCODE_CTRL_Q = 17;
var MOUSE_BUTTON_LEFT = 1;
var MOUSE_BUTTON_RIGHT = 2;