IE6/7 will have a fixed header only
This is unlikely to work in most other browsers but they should just get a normal table.
| jan | feb | mar | apr | may | jun | jul | aug | sep |
|---|---|---|---|---|---|---|---|---|
| jan | feb | mar | apr | may | jun | jul | aug | sep |
| 1 | 3 | 5 | 1 | 1 | 3 | 1 | 5 | 7 |
| 1 | 3 | 5 | 1 | 1 | 3 more data | 1 | 5 | 7 |
| 2 | 4 | 6 | 1 | 23 | 4 | 1 | 6 | 6 |
| 1 | 1 | 6 | 1 | 4 | 7 | 1 | 7 | 6 |
| 2 | 2 | 3 | 3 | 3 | 8 | 2 | 8 | 6 |
| 6 | 4 | 4 | 4 | 2 | 9 | 4 | 4 | 6 |
| 7 | 4 | 5 | 5 | 2 | 0 | 3 | 23 | 6 |
| 7 | 4 | 2 | 67 | 2 | 1 | 4 | 4 | 4 |
| 2 | 4 | 3 | 1 | 2 | 2 | 5 | 65 | 4 |
| 2 | 4 | 4 | 1 | 2 | 13 | 6 | 7 | 4 |