st: Spell-data Problem

[Joerg Eulenberger <j.eulenberger@web.de>]

Dear Statausers,
i have an Spell-dataset like in the Table. My Problem is there Gap's 
between the episode's.
For instance: Between the first and the second spell of Person 1002, are 
two months missing. (2005m10-2005m11).
I want to create an separate Spell for the Missing time, like the other 
spells, with a new status 9 and an time correct epiid.
For instance: after insert the new missing-spell, the missing Spell 
should have the epiid-number 2 and following spells 3 and 4.
Persnum is the ID of Person. xt is the state, like job or unemployed. 
xbrr is the begin of the spell, xerr is the end of spell and epiid is 
the id of spell by persnum.

    | persnum    xt      xbrr             xerr      epiid |
    |--------------------------------------------|
 1. |    1001    3    2004m9     2005m12       1 |
 2. |    1002    1    2004m7     2004m9         1 |
 3. |    1002    2    2004m12   2005m7         2 |
 4. |    1002    2    2005m8     2005m12       3 |
 5. |    1005    3    2004m6     2004m8         1 |
 6. |    1005    2    2004m9     2005m12       2 |
 7. |    1007    1    2004m7     2004m7         1 |
 8. |    1007    3    2004m8     2004m10       2 |
 9. |    1007    1    2004m11   2004m12       3 |
10. |    1007   3    2005m1     2005m8         4 |
11. |    1007   2    2005m10   2005m12       5 |
12. |    1008   1    2004m9     2005m12       1 |
13. |    1010   1    2004m7     2004m8         1 |
14. |    1010   2    2004m9     2005m12       2 |

Thanks in advance!
Jörg
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