contract Pausable is Ownable {
	event Pause();
	event Unpause();

	bool public paused = false;


	/**
	 * @dev Modifier to make a function callable only when the contract is not paused.
	 */
	modifier whenNotPaused() {
		require(!paused);
		_;
	}

	/**
	 * @dev Modifier to make a function callable only when the contract is paused.
	 */
	modifier whenPaused() {
		require(paused);
		_;
	}

	/**
	 * @dev called by the owner to pause, triggers stopped state
	 */
	function pause() onlyOwner whenNotPaused public {
		paused = true;
		Pause();
	}

	/**
	 * @dev called by the owner to unpause, returns to normal state
	 */
	function unpause() onlyOwner whenPaused public {
		paused = false;
		Unpause();
	}
}
/**
 * @title Pausable
 * @dev Base contract which allows children to implement an emergency stop mechanism.
 */
function pause() onlyOwner whenNotPaused public {
	paused = true;
	Pause();
}

/**
 	 * @dev called by the owner to pause, triggers stopped state
 	 */