Add or append values to a multiselect list from within a function

Add or append values to a multiselect list from within a function

Hi,

Am trying to do this

Form A has a multiselect list could be (list or lookup) with say A, B, C

From within a function i want to write "D" to the list, it does not get updated as D is not part of the list defined in Form A

uu.Multi_Select_1 = thelist; (where the thelist contains D)

Basically i am trying to emulate ui.add or ui.append from within a function

Is this possible, i can live with a blank multiselect in Form A to which i can write any type of list also

thanks