Dave,

the problem you were having (I should think) was that your clause for
putting in a comma was if:

Current Element  !=  Last element of the list

But if you have another element in the list which has the same value as the
last one, it will fall over.

Thats why I posted the code that looks at the element index, not the value
it points to in the list. You want to put a comma in front of each value if
its not the first time  it loops through.

Not very well explained I know, but you'll see what I mean.

Taz


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