Statements not working

Hi there!

Would you please tell me why the _visible statements are not working in the code below?

Many thanks in advance for your help and suggestions.

Regards

Gerry


//this is to display the cover photo
createEmptyMovieClip("CONTAINER", 1);
CONTAINER._x = 22;
CONTAINER._y = 130;
CONTAINER.loadMovie("Images/cover.jpg");
CONTAINER._visible = true;
//this is to display the verso photo
createEmptyMovieClip("CONTAINERTWO", 2);
CONTAINERTWO._x = 22;
CONTAINERTWO._y = 130;
CONTAINERTWO.loadMovie("Images/verso.jpg");
CONTAINERTWO._visible = false;