public void onPlayerDamage(EntityDamageByEntityEvent pdevent) {
	if (pdevent.getDamager().getType() == EntityType.ZOMBIE) {
		Entity zombie = pdevent.getDamager();
        org.bukkit.util.Vector newVec = zombie.getLocation().getDirection().multiply(10.0);
        newVec.setY(newVec.getY()/10.10);
        zombie.setVelocity(newVec);
	} else {

	}
	}