How to Split an Array

[Arena]

I am trying to split an array but I am not sure what string parameter should I use?

arrPV = Split(arrPV,",")

QTP is not liking the first parameter. I can see why since it is the array name: arrPV

What can I use?
Is there a ToString function I can use with arrays?

Code:

Public Function createSingleObj(t,arrPV)
        Set o = Description.Create
        o("micclass").Value = t
        arrPV = Split(arrPV,",")
        For iLoop = 0 to UBound(arrPV)
                Prop= Split(arrPV(iLoop),":=")(0)
                Val= Split(arrPV(iLoop),":=")(1)
                o(Prop).Value = Val
        Next
        Set createSingleObj = o
End Function

Thanks!