public function getUri()
    {
        if ( $this->hasChildren() )
        {
            foreach( $this->getChildren() as $child )
            {
                $uri = $child->getUri();

                if ( '#' != $uri[0] )
                {
                    return $uri;
                }
            }
        }
        else
        {
            return '#';
        }
    }