///lock_destroy()
function lock_destroy() {

	global.selecting = noone;

	with (obj_lock.info)  { instance_destroy() };
	with (obj_lock.area)  { instance_destroy() };
	with (obj_lock.plus)  { instance_destroy() };
	with (obj_lock.minus) { instance_destroy() };

	if (instance_exists(obj_lock))
	    with (obj_lock)
	        instance_destroy();


}