Array
(
    [5] => L280A
    [0] => L290
    [1] => L2901
    [2] => L2902
    [3] => L2905
    [4] => L2906
    [6] => L292A
    [8] => L292B
    [9] => L292C
    [7] => L292D
    [12] => L293A
    [13] => L294A
    [10] => L295A
    [11] => L295B
    [14] => L296A
    [15] => L297A
    [16] => L298A
    [17] => L2991
    [18] => L2993
    [19] => L2995
    [20] => L2997
)

All Sorts: Array
(
    [0] => L280A
    [1] => L290
    [2] => L2901
    [3] => L2902
    [4] => L2905
    [5] => L2906
    [6] => L292A
    [7] => L292B
    [8] => L292C
    [9] => L292D
    [10] => L293A
    [11] => L294A
    [12] => L295A
    [13] => L295B
    [14] => L296A
    [15] => L297A
    [16] => L298A
    [17] => L2991
    [18] => L2993
    [19] => L2995
    [20] => L2997
)

All Codes +  All Sorts: Array
(
    [L280A] => L280A
    [L290] => L290
    [L2901] => L2901
    [L2902] => L2902
    [L2905] => L2905
    [L2906] => L2906
    [L292A] => L292A
    [L292B] => L292B
    [L292C] => L292C
    [L292D] => L292D
    [L293A] => L293A
    [L294A] => L294A
    [L295A] => L295A
    [L295B] => L295B
    [L296A] => L296A
    [L297A] => L297A
    [L298A] => L298A
    [L2991] => L2991
    [L2993] => L2993
    [L2995] => L2995
    [L2997] => L2997
)

Current: 6
Max: 21
Back: -1
Next: 1
First: L2905
Second: L2906
Third: L292A
Fourth: L292B