get value (not text) from combo in grid

[floorin]

How can I get value (not text) from combo in a grid?
I means:
TabEntete:[...etc...,['string',100,[[1,'maradona'],[2,'van basten']]]]...etc
If the user select van basten then with getTabData I get van basten, but I want to get de associated value to van basten, wich is 2.

Thanks in advance.