Problem: Can't call a model function in my library!

[eluser]Jason van der Zeeuw[/eluser]
Hey all,

Here is my problem code:

Code:

var $CI; //Contains an instance of the library

    public function __construct() {
        $this->CI = & get_instance();
        $this->CI->load->model('mymodel');        
    }

    function test()
    {        
        return $this->mymodel->testmethod());
    }

I get 2 errors:

Message: Undefined property: My_library::$mymodel (so he doesn't knows 'mymodel')
&
Fatal error: Call to a member function testmethod() on a non-object