Self-destruction lever with a timer and alarm for minecraft.

function MinecraftLever() {
  var time = 5; // set time in seconds
  var alarm = 'creeper'; // set alarm to play
  var lever = 1; // set lever to 1 for on and 0 for off
  if (lever) {
    if (time === 0) {
      play(alarm);
    }
    time = time - 1;
  }
}