Pick a name from the dialog list

hi all,my problem is that, in my application we used a dialog list field, it contain more than one name seprated by comma.i want to use another 3 text computed fields and each field can pick the correspondance value from the dialog list.

i have also used @word(string;“,”;1) etc.

but it is not pick a value from dialog list.

if possible plz give me reply.

Thanx

Sonal