function get_neighbors_arr_2( arr, current_step ) {
        var steps = {
            next: '',
            previous: ''
        };

        for( var i = 0; i < arr.length; i++ ) {
            if( current_step == arr[i][0]) {
                if( !(null == arr[i-1][0]) ) {
                    steps.previous = arr[i-1][0];
                }
                if( !(null == arr[i+1][0]) ) {
                    steps.next = arr[i+1][0];
                }
            }
        }

        return steps;
    }