(function( $ ){
    

    $.ControlAnchor = function() {
        throw Error.invalidOperation();
    };

    $.ControlAnchor = {
        NONE: 0,
        TOP_LEFT: 1,
        TOP_RIGHT: 2,
        BOTTOM_RIGHT: 3,
        BOTTOM_LEFT: 4
    };
    
    $.ControlAnchor = $.ControlAnchor;

}( OpenSeadragon ));