working with parameters

Hi all,

I'm working with Truclient and I want to randomize data from an array.

If I create a parameter with 2 tables : array1 and array2 with the same dimension

then I want to randomize a variable i (from 1 to the number max of elements)

and retrieve Array1[i] and Array2[i]

in othe words, once the i is randomize I need the same i with array1 and array2  (for example array1 and array2 can be a list of firstname and lastname)

how can we do that with parameter and then a type action on an object (like a textfield)

thanks in advance

Frédéric